Istituto Zooprofilattico Sperimentale della Lombardia e dell’Emilia Romagna “Bruno Ubertini” PUBLICATIONS FROM 2006 TO 2010 ID nr. 3163 Brocchi° E, Bergmann IE, Dekker A, Paton DJ, Sammin DJ, Greiner M, Grazioli° S, De_Simone° F, Yadin H, Haas B, Bulut N, Malirat V, Neitzert E, Goris N, Parida S, Sorensen K, De_Clercq K Comparative evaluation of six ELISAs for the detection of antibodies to the non-structural proteins of foot-and-mouth disease virus Vaccine. - Vol. 24 no 47-48 ( 2006). - p 6966-6979. - 21 bib ref Impact factor: 2,822 Project SSPE-CT-2003-503603 - Improvement of foot and mouth disease control by ethically acceptable methots based on scientifically validated assays and new knowledge on FMD vaccines, including the impact of vaccination (FMD-IMPROCON). - De Clercq Dr. Kris - UO - CE - 2003 - 2399907,00 EUR - 01/01/2004 0.00.00 - 31/12/2008 0.00.00 - 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I To validate the use of serology in substantiating freedom from infection after foot-and-mouth disease (FMD) outbreaks have been controlled by measures that include vaccination, 3551 sera were tested with six assays that detect antibodies lo the non-structural proteins of FMD virus. The sera came from naïve, vaccinated, infected and vaccinated-and-infected animals two-thirds from cattle, the remainder from sheep and pigs. The assays were covariant for sensitivity, but not necessarily for specificity. A commercial kit from Cedidiagnostica and an in-house assay from 1ZS-Brescia were comparable to the NCPanaftosa-screening index method described in the Diagnostic Manual of the World Animal Health Organisation. Using these three tests the specifìcity and sensitivity. for the detection of carriers in vaccinated cattle approaches or exceeds 99% and 90% respectively. ID nr. 3184 Stacchiotti A, Rodella LF, Ricci F, Rezzani R, Lavazza° A, Bianchi R Stress proteins expression in rat kidney and liver chronically exposed to aluminium suiphate Histol Histopathol. - Vol. 21 ( 2006). - p 131-140. - 64 bib ref Impact factor: 2,023 Aluminium (Al) is the third most widespread metal in the environment. It is toxic for the brain, bone and haematological system but unfortunately very little data exist for other organs. Stress proteins are induced or enhanced against metal toxicity with an essential role in the recovery of organules and other cellular proteins. This immunohistochemical study was performed to analyze the distribution of three stress proteins (HSP25, HSP72, GRP75) in rat kidney and liver orally exposed to Al sulphate daily for 3 and 6 months. A1-induced alterations were further studied by histopathology (H&E, PAS, Perl's, Masson) and ultrastructural morphometry. In the kidney: HSP25 was enhanced in proximal tubules after 6 months A1-exposure when abnormal brush borders were observed; HSP72 was induced in proximal tubules only after long Al-treatment; GRP75 was raised in midcortical area sometimes within nuclei. Furthermore, lysosomal and lipofuscins densities increased in the juxtamedullary tubules after 3 months Al exposure with respect to controls. In the liver: Perl'spositive deposits and fibrosis became evident after Al treatment. HSP25 was very weak; HSP72 focal in pericentral hepatocytes at 3 months and induced also in Kupffer cells at 6 months; GRP75 diffuse in periportal hepatocytes and non parenchymal cells at 6 months. Prolonged Al exposure stimulated stress proteins strictly organ-dependently in the rat. Their distribution in kidney and liver seems related to cumulative sublethal effects induced by metal and could be a sensitive index of Al susceptibility of these organs. Pag. 1 di 300 31/08/2011 ID nr. 3229 Paton DJ, De_Clercq K, Greiner M, Dekker A, Brocchi° E, Bergmann I, Sammin JD, Gubbins S, Parida S Application of non-structural protein antibody tests in substantiating freedom from foot-and-mouth disease virus infection after emergency vaccination of cattle Vaccine. - Vol. 24 no 42-43 ( 2006). - p 6503-6512. - 20 bib ref Impact factor: 2,822 Project SSPE-CT-2003-503603 - Improvement of foot and mouth disease control by ethically acceptable methots based on scientifically validated assays and new knowledge on FMD vaccines, including the impact of vaccination (FMD-IMPROCON). - De Clercq Dr. Kris - UO - CE - 2003 - 2399907,00 EUR - 01/01/2004 0.00.00 - 31/12/2008 0.00.00 - 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I There has been rnuch debate about the use of the so-called "vaccinate-to-live policy for the control of footand-mouth disease (FMD) in Europe. according to which, spread of the FMD virus (FMDV) from future outbreaks could be controlled by a short period of "emergency)," vaccination of surrounding herds, reducing the need for large-scale pre-emptive culling of at-risk animals. Since vaccinated animals may become subclinically infected with FA9DV following challenge exposure, it is necessary tO either remove all vaccinates (vaccinate-to-kill) or to detect and remove vaccinates in which virus is circulating or has established persistent infections (vaccinate-to-live), in order to rapidly regain the most favoured trading status of FMD-free without vaccination. The latter approach can be supported by testing vaccinated animals for the present of antibodies to certain non-structural proteins NSP) of FMDV, which are induced by infection with the virus, but not by vaccination wíth purified FMD vaccines. Using test sensitivity and specificity data established at a recent workshop on NSP assays [Brocchi E. Bergmann I. Dekker A. Paton DJ. Sammin DJ. Greiner M. et al. Comparative performance of six ELISAs for antibodies to the non-structural proteins of foot-and-mouth disease. Vaccine. in press, this paper examines the ways in which serological testing with NSP ELISAs can he used and interpreted and the effect that this will have un the confidence with which freedom from infection can be demonstrated within guidelines specified by the World Animal Health Organisation and the European Commission. ID nr. 3250 Pedretti° E, Passeri B, Amadori° M, Isola P, Di_Pede P, Telera A, Vescovini R, Quintavalla F, Pistello M Low-dose interferon-alfa treatment for feline immunodeficiency virus infection Vet Immunol Immunopathol. - Vol. 109 ( 2006). - p 245-254. - 31 bib ref Impact factor: 1,626 Feline immunodeficiency virus sustains an AIDS-like syndrome in cats, which is considered a relevant model for human AIDS. Under precise enrolment requirements, 30 naturally infected cats showing overt disease were included in a trial of lowdose, oral human interferon-a treatment. Twenty-four of them received 10 IU/Kg of human interferon-alfa and 6 placebo only on a daily basis under veterinary supervision. The low-dose human interferon-alfa treatment significantly prolonged the survival of virus-infected cats (p < 0.01) and brought to a rapid improvement of disease conditions in the infected hosts. Amelioration of clinical conditions was neither correlated with plasma viremia, nor with proviral load in leukocytes. A good survival of CD4+T cells and a slow increase of CD8+T cells were also observed in human interferon-alfa-treated cats. Interestingly, the improvement of the total leukocyte counts showed a much stronger correlation with the recovery from serious opportunistic infections. As shown in other models of low-dose interferon-alfa treatment, there was a rapid regression of overt immunopathological conditions in virus-infected cats. This hints at a major role of interferon-a in the control circuits of inflammatory cytokines, which was probably the very foundation of the improved clinical.score and survival despite the unabated persistence of virus and Pag. 2 di 300 31/08/2011 virusinfected cells. ID nr. 3268 Nunez JI, Fusi° P, Borrego° B, Brocchi° E, Pacciarini° ML, Sobrino F Genomic and antigenic characterization of viruses from the 1993 Italian foot-and-mouth disease outbreak Arch Virol. - Vol. 151 ( 2006). - p 127-142. - 57 bib ref Impact factor: 1,819 Project SSPE-CT-2003-503603 - Improvement of foot and mouth disease control by ethically acceptable methots based on scientifically validated assays and new knowledge on FMD vaccines, including the impact of vaccination (FMD-IMPROCON). - De Clercq Dr. Kris - UO - CE - 2003 - 2399907,00 EUR - 01/01/2004 0.00.00 - 31/12/2008 0.00.00 - 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I PRC98004 - Update of reagents and procedures for diagnosis and control of Foot-and-mouth disease toward recognition of newly arrived viral strains - Brocchi Dr.ssa Emiliana - Solo - MINSAN - 1998 - 01/10/1999 0.00.00 - 30/09/2001 0.00.00 - 190000000,00 LIT 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I The origin and evolution of the type O foot-and-mouth disease viruses (FMDV) that caused the outbreak occurrence in Italy in 1993, the first episode of the disease in the EU after adoption of a non-vaccination policy in 1991, have been studied by the analysis of sequences encoding three main antigenic sites on the viral capsid proteins. The phylogenetic tree derived from sequences spanning the carboxyterminal end of VP 1 showed that these Italian viruses were grouped in the ME-SA topotype, closely related to viruses that circulated previously in the Middle East. The analysis of the nucleotide sequences in VP1, VP2 and VP3 showed a co-circulation during the epizootic of genetic variants, including viruses with amino acid replacements in VP3. For some of the isolates analyzed, values of fixation of nucleotide substitutions per year were observed in the three regions analyzed, ranging from 1.5 to 5.1 x 10-2. The use of a panel of new monoclonal antibodies raised against an isolate from this outbreak, as well as monoclonal antibodies to FMDV 01-Switzerland 1965, showed differences in the reactivity pattern among some of the Italian isolates analyzed, which were consistent with the co-circulation of antigenic variants. These results support the potential for FMDV diversification in a limited period of time and under epidemiological conditions in which no vaccination campaigns were being implemented. ID nr. 3285 Gelmetti° D, Meroni° A, Brocchi° E, Koenen F, Cammarata G Pathogenesis of encephalomyocarditis experimental infection in young piglets: a potential animal model to study viral myocarditis Vet Res. - Vol. 37 ( 2006). - p 15-23. - 41 bib ref Impact factor: 2,324 Project PL 98 - 4146 - Molecular characterisation and epidemiology of Encephalomyocarditis virus: a model for emerging diseases - Koenen Dr. F. - UO - CE - 1998 - 1252600,00 EUR - 01/02/1999 0.00.00 - 31/01/2002 0.00.00 - 3 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I The pathogenesis of encephalomyocarditis (ENIC) due to the ENIC virus (EMCV) was studied in 24 piglets oro-nasally infected with the field isolate B279/95. Two pigs were kept as negative controls and were euthanised at hour 0. The remaining 24 were euthanised every 6 h up to 78-h post infection (hpi). Virus isolation, histological examination and EMCV immunodetection were performed on the spleen, intestine, pancreas, liver, kidneys, heart, lungs, lymph nodes, tonsils and brain. EMCV was isolated at 6-hpl from the intestine and lymph nodes and at 12-hpi from the heart. From 6 to 12-hpi, scattered degenerate myocardiocytes were immunolabelled. Subsequently, myocarditis developed and progressively worsened. Immunopositive reaction in tonsil macrophages, observed in the early stage of infection (6-hpi), suggests that Pag. 3 di 300 31/08/2011 tonsils are the portal of entry, and by mean of wandering macrophages the ENIC virus is then distributed through the body. Afterwards, EMCV-B279/95 replicates intensively in the cytoplasm of myocardiocytes and the acute myocarditis is strictly related to the tropism of these cells. Four pigs died spontaneously. In three animals no post mortem lesions or virus were isolated/detected, although all of them showed mild myocarditis. The experimental infection with EMCV B279,95 indicates: (i) the experimental protocol mimics the individual variability observed in natural disease, (ii) tonsils are the portal of entry of infection and the heart is the target organ, (iii) EMCV provides a valuable animal model for comparative studies on progressive viral myocarditis. ID nr. 3307 Bolelli L, Bobrovovà Z, Ferri E, Fini F, Menotta° S, Scandurra° S, Fedrizzi° G, Girotti S Bioluminescent bacteria assay of veterinary drugs in excreta of food-producing animals J Pharm Biomed Anal. - Vol. 42 ( 2006). - p 88-93. - 27 bib ref Impact factor: 1,889 The residues of pharmacological treatments on food-producing animals, present in the manure dispersed on agricultural land, can impact environmental and human health through toxic, genotoxic, and drug-resistance development effects. Biotoxicity assays can easily reveal the presence of noxious substances and those based on bioluminescent bacteria (BLB) are particularly simple and rapid. A BLB assay was developed as microplate format by using various strains of Vibrio sp. and was employed to evaluate their response to pure antibiotic solutions and to residues extracted from excreta of antibiotic treated pigs and turkeys. The residues were quantified by HPLC analysis. The BLB assay can be proposed as an easy-to-perform screening tool to assess the presence of residues due to undeclared current, or recently ended, pharmacological treatments, as well as to evaluate their permanence in manure. ID nr. 3308 Petracci M, Bianchi M, Cavani C, Gaspari P, Lavazza° A Preslaughter mortality in broiler chickens, turkeys, and spent hens under commercial slaughtering Poult Sci. - Vol. 85 no 9 ( 2006). - p 1160-1164. - 25 bib ref Impact factor: 1,747 The incidence of dead on arrival (DOA) birds was surveyed over 33 broiler, 11 turkey, and 19 spent hen abattoirs representing the majority (around 70%) of the Italian poultry slaughter plants. Data were recorded monthly during a 4-yr period (August 2001 to July 2005), considering a total of 1,266 million chicken broilers, 118 million turkeys, and 54 million spent hens, which represent 67.7, 84.0, and 28.4% of the national production, respectively. The overall average incidence of DOA was found to be 0.35, 0.38, and 1.22% in broilers, turkeys, and spent hens, respectively. The season significantly (P S 0.01) influenced the mortality of all considered poultry categories, with higher incidence being observed during the summer (0.47, 0.52, and 1.62% for broilers, turkeys, and spent layers, respectively). The incidence of DOA broilers was found to be lower in small slaughter plants compared with medium and large slaughter plants (0.28 vs. 0.38 and 0.35%, P <_ 0.01). The data obtained in this study might be used for establishing limit values of DOA as a welfare indicator during the preslaughter time of birds, including catching, loading, transportation, and lairage. ID nr. 3316 Alborali° L Climatic variations related to fish diseases and production Vet Res Commun. - Vol. 30 suppl 1 ( 2006). - p 93-97. - 27 bib ref Impact factor: 0,328 First author Alborali, Giovanni Loris Pag. 4 di 300 31/08/2011 ID nr. 3317 Petrini° S, Ferrari° M, Vincenzetti S, Vita A, Amici A, Ramadori G An immunoenzyme linked assay (ELISA) for the detection of antibodies to Truncated Glycoprotein D (tgD) of bovine Herpesvirus-1 Vet Res Commun. - Vol. 30 suppl 1 ( 2006). - p 257-259. - 8 bib ref Impact factor: 0,328 Project PRC2000004 - New strategies for control of Influenza virus infection in swine and horses. Barigazzi Dr. Giuseppe - Capofila - MINSAN - 2000 - 670000000,00 LIT - 02/05/2002 0.00.00 01/08/2005 0.00.00 - 1 - N5 - Parma - Foni Dr.ssa Emanuela - I 2 - N1 - Bologna - Vecchi Dr. Giovanni - I 3 - ISS - Donatelli Dr.ssa Isabella - E 4 - ISS 2 - Campitelli Dr.ssa Laura - E 5 - L1 - Centro Substrati Cellulari - Ferrari Dr.ssa Maura - I ID nr. 3346 Ferris NP, King DP, Reid SM, Hutchings GH, Shaw AE, Paton DJ, Goris N, Haas B, Hoffmann B, Brocchi° E, Bugnetti° M, Dekker A, De Clercq K Foot-and-mouth disease virus : a first inter-laboratory comparison trial to evaluate virus isolation and RT-PCR detection methods Vet Microbiol. - Vol. 117 ( 2006). - p 130-140. - 27 bib ref Impact factor: 2,175 Project 2003-SSP-3-513645 - New and emerging technologies: improved laboratory and on-site detection of oie list a viruses in animals and animal products (LAB-ON.SITE) - Belak Dr. Sandor - UO - CE 2004 - 1500000,00 EUR - 01/11/2004 0.00.00 - 31/07/2008 0.00.00 - 7 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I PRC99004 - Development and validation of innovating serological methods for the differentiation of vaccinated from FMD-virus infected animals based on the use of multiple non-structural antigens Brocchi Dr.ssa Emiliana - Solo - MINSAN - 1999 - 16/08/2000 0.00.00 - 15/08/2002 0.00.00 142524000,00 LIT 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I Five European reference laboratories participated in an exercise to evaluate the sensitivity and specificity of their routinely employed RT-PCR tests and cell cultures for the detection and isolation of foot-and-mouth disease (Fk1D) virus. Five identical sets of 20 coded samples were prepared from 10 vesicular epithelia, which were derived from submissions from suspect cases of FNID or swine vesicular disease (SVD). Sixteen samples were derived from six FMD virus positive epithelia representing four different serotypes (two each of types O and A and one each of types Asia 1 and SAT 2), two from samples which had been found to be negative by antigen ELISA and virus isolation (VI) in cell culture and two from SVD virus positive epithelia. Some of the FNID virus positive samples were prepared from 10-fold serial dilutions of three of the initial suspensions. Each laboratory tested the samples by one or more of its available RT-PCR procedures and inoculated cell cultures that it routinely uses for FMD diagnosis in attempts to isolate virus, the specificity of which was confirmed by antigen ELISA. The best of the RT-PCR assays used in each laboratory gave comparable results while the sensitivity of cell cultures was variable from high in one laboratory. moderate in two and low in two others. This prototype panel of samples would appear suitable for external quality assurance of these tests but would benefit from the inclusion of more negative samples and an extension in the serial dilution range of one or more of the FMD positive sample titration series. ID nr. 3380 Stacchiotti A, Ricci F, Rezzani R, Li_Volti G, Borsani E, Lavazza° A, Bianchi R, Rodella LF Tubular stress proteins and nitric oxide synthase expression in rat kidney exposed to mercuric Pag. 5 di 300 31/08/2011 chioride and melatonin J Histochem Cytochem. - Vol. 54 no 10 ( 2006). - p 1149-1157. - 46 bib ref Impact factor: 2,208 Stress proteins such as HSP70 members (HSP72 and GRP75) and metallothionein (MT) protect the Kidney against oxidative damage and harmful metals, whereas inducible nitric oxide synthase (iNOS) regulates tubular functions. A single dose of mercuric chloride (HgCI2) can cause acute renal failure in rats, its main target being the proximal tubule. Oxidative damage has been proposed as one of its pathogenic mechanisms. In this study we tested whether melatonin (MEL), a powerful antioxidant compound, is effective against HgCI2 nephrotoxicity. Rats were treated with saline, HgCI2 (3.5 mg/kg), MEL (5 mg/I<9), and MEL + HgCl2 and examined after 24 hr for HSP72, GRP75, MT, and iNOS by immunohistochemistry and immunoblotting. Tubular effects of the treatment were then characterized by ultrastructure. In the HgCI2 group, all markers were overexpressed in convoluted proximal tubules and sometimes in distal tubules. In the MEL + HgCI2 group, GRP75 and iNOS decreased in convoluted and straight proximal tubules, whereas HSP72 and MT persisted more than the saline and MEL-only groups. Tubular damage and mitochondrial morphometry were improved by MEL pretreatment. In conclusion, the beneficial effect of MEL against nephrotoxicity HgCI2 nephrotoxicity was outlined morphologically and by the reduction of the tubular melatonin expression of stress proteins and iNOS. These markers could represent sensitive recovery stress proteins index against mercury. ID nr. 3402 Scala A, Garippa G, Varcasia A,Tranquillo° VM, Genchi C Cystic echinococcosis in slaughtered sheep in Sardinia (Italy) Vet Parasitol. - Vol. 135 nr. 1 ( 2006). - p 33-38 - 28 bib ref Impact factor: 1,686 Of 771 regularly slaughtered Sardinian breed sheep, 580 (75%) were found infected with Echinococcus granulosus hydatid cysts. Seventy-nine sheep (10.3%) had at least 1 fertile cyst. The prevalence of sheep infected with purulent/caseous cysts, calcified cysts and sterile cysts was 13, 59 and 28%, respectively. The age of sheep was positively associated with the probability of infection that increased 1.15 fold for each further year of age. Fertile cysts were found in the lungs of 46 sheep (6%) and in the liver of 13 sheep (1.7%), and in the lung and the liver of 20 sheep (2.6%). Most fertile cysts were found in the lungs (314) and most sheep were infected with less than 10 cysts. When analyzed by a mixed-effect logistic model, the probability to find fertile cysts in the lungs was three times higher compared to the liver and it increased with the age of the sheep (p = 0.70, p < 0.001). Of 4072 collected cysts, 532 were fertile, 178 purulent/caseous. 2 339 calcified and 1023 sterile. ID nr. 3414 Furlanello T, Tasca S, Caldin M, Carli E, Patron C, Tranquillo° M, Lubas G, Solano_Gallego L Artifactual changes in canine blood following storage, detected using the ADVIA 120 hematology analyzer Vet Clin Pathol. - Vol. 35 no 1 ( 2006). - p 42-46 - 20 bib ref Impact factor: 0,795 Artifactual changes in blood may occur as a consequence of delayed analysis and may complicate interpretation of CBC data. Objective: The aim of this study was to characterize artifactual changes in canine blood, due to storage, using the ADVIA 120 hematology analyzer. Methods: Blood samples were collected into EDTA from 5 clinically healthy dogs. Within 1 hour alter blood sample collection and at 12, 24, 36 and 48 hours alter storage of the samples at either 4'C or room temperature (-24'C), a CBC was clone using the ADVIA 120 and multispecies software. A linear mixed model was used to statistically evaluate significant differences in values over time, compared with initial values. Results: The HCT and MCV were increased Pag. 6 di 300 31/08/2011 significantly after 12 hours of collection at both 4'C and 24'C, and continued to increase through 48 hours. The MCHC initially decreased significantly at 12-24 hours and then continued to decrease through 48 hours at both temperatures. Changes in HCT, MCV, and MCHC were greater at 24'C than at 4'C at all time points. A significant increase in MPV and a decrease in mean platelet component concentration were observed at all time points at 24'C. Samples stored at 24'C for 48 hours had significantly higher percentages of normocytichypochromic RBCs, and macrocytic-normochromic RBCs, and lower platelet and total WBC counts. Conclusions: Delayed analysis of canine blood samples produces artifactual changes in CBC results, mainly in RBC morphology and platelet parameters, that are readily detected using the ADVIA 120. Refrigeration of specimen, even after 24 hours of storage at room temperature, is recommended to improve the accuracy of CBC results for canine blood samples. ID nr. 3424 Furianello T, Caldin M, Stocco A, Tudone E, Tranquillo° M, Lubas G, Solano-Gallego L Stability of stored canine plasma for hemostasis testing Vet Clin Pathol. - Vol. 35 no 2 ( 2006). - p 204-207 - 14 bib ref Impact factor: 0,795 ID nr. 3425 De_Lorenzi D, Mandara MT, Tranquillo° M, Baroni M, Gasparinetti N, Gandini G, Masserdotti C, Bonfanti U, Bertolini G, Vian P, Bernardini M Squash–prep cytology in the diagnosis of canine and feline nervous system lesions: a study of 42 cases Vet Clin Pathol. - Vol. 35 no 2 ( 2006). - p 208-214 - 40 bib ref Impact factor: 0,795 ID nr. 3426 Croci L, Losio° MN, Suffredini E, Pavoni° E, Di_Pasquale E, Fallacara° F, Arcangeli G Assessment of human enteric viruses in shellfish from the northern Adriatic sea Int J Food Microbiol. - Vol. 114 no 2 ( 2007). - p 252-257. - 41 bib ref Impact factor: 2,608 Incidence and circulation of different strains of hepatitis A and Norovirus in shellfish were studied on 235 samples (Tapes philippinarum. mytilus galloprovincialis. Ostrea spp. and Chlamys spp.) obtained from different sites, representing the shellfish production areas of the northem Adriatic sea. Shellfish were harvested in the period of one year and, after depuration, were examined for bacterial (Escherichia coli and Salmonella) and viral (HAV and NoV) contamination. Viral contamination was present on average in 22% of samples: specifically, 6% of samples tested positive for HAV. 14% for NoV and 2% for both viruses. None of the samples revealed the presence of Salmonella, and in most of them (93%) the number of E. coli was below the European legislation limit of 230 MPN/100 g. T. philippinarum was the species most often contaminated, as well as bein the only species in which the legal limit for E. coli was, in some cases, exceeded. Both HAV and NoV contamination were detected throughout the year; NoV detection was slightly more frequent during winter months, but positive samples were also present in summer. The sequencing of the PCR products showed the circulation of only one HAV genotype (LA) and four different NoV genotypes (Hawaii, Melksham. Lordsdale and GGIIb) with a prevalence of the GGIIb genotype in the sceond period of the monitoring. ID nr. 3432 Ostanello F, Dottori° M, Gusmara G, Leotti G, Sala V Pneumonia disease assessment using a slaughterhouse lung-scoring method Pag. 7 di 300 31/08/2011 J Vet Med A. - Vol. 54 no 2 ( 2007). - p 70-75. - 33 bib ref Impact factor: 0,627 The aims of this study were the evaluation of a quantitative method for the assessment of pneumonia lesions applied lo heavy-weight slaughtered pies. the identification of risk factors connected with the increase in the prevalence and severity of the lesions and the evaluation of a possible correlation between the presence of pneumonia lesions and the decrease in the carcass quality. The lungs of 10 041 pigs (109 slaughtered batches) coming from 91 farms located in Northern Italy were examined. Lung lesions were scored using the method developed by Madec and Kobisch (Juurn. Rech. Porc. Fr.. 14. 1992. 405). Before the scoring. anamnestic information regarding the farm of origin of each batch were collected. For 41 batches (3603 pigs). information about carcass quality were also collected. Pneumonia lesions were found in 59.6°'0 of the lungs (range 3-91%), and the average batch score was 2.11 (range 0.03-7.15). We identified as farm risk factors those related to an increase in the severity of the lung lesions. the presence of breeders within the herd. the starting of a growing cycle during the winter season and the lack of vaccination programmes to Mycoplasma hyopneumoniae. Moreover, we also found a statistically significant association between the increase in the mean lung score of the batch and the decrease of the carcass quality. ID nr. 3433 Capobianco R, Casalone C, Suardi S, Mangieri M, Miccolo C, Limido L, Catania M, Rossi G, Di_Fede G, Giaccone G, Bruzzone MG, Minati L, Corona C, Acutis P, Gelmetti° D, Lombardi° G, Groschup MH, Buschmann A, Zanusso G, Monaco S, Caramelli M, Tagliavini Conversion of the base prion strain into the BSE strain: the origin of BSE? PLoS Pathog. - Vol. 3 no 3 ( 2007). - p 1-7. - 38 bib ref Impact factor: 6,056 Project PRC2004008 - Preliminary assessment of the presence of hepatitis E infection in swine of Lombardy, set-up of an ELISA serological method and PCR - Lombardi Dr. Guerino - Solo MINSAN - 2004 - 50000,00 EUR - 01/07/2005 0.00.00 - 30/06/2007 0.00.00 - 1 - G3 - Reparto benessere animale, immunoprofilassi, allevamenti e sperim. Animale - Lombardi Dr. Guerino - I Atypical neuropathological and molecular phenotypes of bovine spongiform encephalopathy (BSE) have recently been identified in different countries. One of these phenotypes, named bovine "amyloidotic" spongiform encephalopathy (BASE), differs from classical BSE for the occurrence of a distinct type of the disease-associated prion protein (PrP), termed PrPSc, and the presence of PrP amyloid plaques. Here, we show that the agents responsible for BSE and BASE possess different biological properties upon transmission to transgenic mice expressing bovine PrP and inbred lines of nontransgenic mice. Strikingly, serial passages of the BASE strain to nontransgenic mice induted a neuropathological and molecular disease phenotype indistinguishable from that of BSE-infected mice. The existence of more than one agent associated with prion disease in cattle and the ability of the BASE strain to convert into the BSE strain may have important implications with respect to the origin of BSE and spongiform encephalopathies in other species, including humans. ID nr. 3435 Amadori° M The role of IFN-a as homeostatic agent in the inflammatory response: a balance between danger and response? J Interferon Cytokine Res. - Vol. 27 ( 2007). - p 181-189. - 79 bib ref Impact factor: 2,472 Project PRC2005002 - Assessment and modulation of the inflammatory effects of early weaning in the piglet - Amadori Dr. Massimo - Solo - MINSAN - 2005 - 22000,00 EUR - 15/05/2006 0.00.00 - Pag. 8 di 300 31/08/2011 14/11/2008 0.00.00 - 1 - G3 - Reparto benessere animale, immunoprofilassi, allevamenti e sperim. Animale - Amadori Dr. Massimo - I Interferon-a (IFN- a) is thought of by most immunologists as a fundamental component of the antiviral innate immune response, with other, accessory properties. Several lines of evidence point to a fundamental reappraisal of this conceptual framework because it may neglect other crucial functions of this cytokine under both health and disease conditions. Among these, a regulatory role in the inflammatory response is probably of paramount importance, as shown by in vivo and in vitro studies on humans, pets, and farm and laboratory animals. This role would not conflict with the main functions of IFN-a in the innate immune system and would complement these in line with major, evolution-based needs of the host. A hinge role of IFN-a between innate and adaptive immunity was recognized in the past on the basis of compelling evidence. This concept should now be widened; not only does IFN-a act to trigger, amplify, and sustain the different phases of the immune response, but it could also promote a substantial balance between danger and inflammatory response when an infectious challenge is either declining or completely over. ID nr. 3439 Duan L, Campitelli L, Fan HX, Leung, YHC, Vijaykrishna D, Zhang JX, Donatelli I, Delogu M, Li KS, Foni° E, Chiapponi° C, Wu WL, Kai H, Webster RG, Shortridge KF, Peiris JSM, Smith GJD, Chen H, Guan Y Characterization of low-pathogenic H5 subtype influenza viruses from Eurasia: implications for the origin of highly pathogenic H5N1 viruses J Virol. - Vol. 81 no 14 ( 2007). - p 7529-7539. - 50 bib ref Impact factor: 5,341 Highly pathogenic avian influenza (HPAI) HSNI viruses are now endemiec in many Asian countries, resulting in repeated outbreaks in poultry and increased cases of human infection. The immediate precursor of these HPAI viruses is believed to be Algoose/Guangdong/1/96 (Gs/GD)-like H5NI HPAI viruses first detected in Guangdong, China, in 1996. From 2000 onwards, many novel reassortant H5N1 influenza viruses or genotypes have emerged in southern China. However, precursore of the Gs/GD-like viruses and their subsequent reassortants have not been fully determined. Here we characterize low-pathogenic avian influenza (LPAI) HS subtype viruses isolated from poultry and migratory birds in southern China and Europe from the 1970s to the 2000s. Phylogenetíc analyses revealed that Gs/GD-like virus was likely derived from an LPAI H5 virus in migratory birds. However, its variants arose from multiple reassortments between Gs/GD-like virus and viruses from migratory birds or with those Eurasian viruses isolated in the 1970s. It is of note that unlíke HPAI H5N1 viruses, those recent LPAI H5 viruses have not become established in aquatie or terrestrial poultry. Phylogenetic analyses revealed the dynamic nature of the influenza virus gene pool in Eurasia with repeated transmissions between the eastern and western extremities of the continent. The data allo show reassortment between influenza viruses from domestie and migratory birds in thìs region that has contributed to the expanded diversity of the influenza virus gene pool among poultry in Eurasia. ID nr. 3493 Gasparini° M, Assini° W, Bozzoni° E, Tognoli° N, Dusi° G Development and validation of a liquid chromatography–tandem mass spectrometry method for the separation of conjugated and unconjugated 17(alfa).- and 17 ß-boldenone in urine sample Anal Chim Acta. - Vol. 586 ( 2007). - p 154-162. - 18 bib ref Impact factor: 2,894 Natural occurrence or illegal treatment of boldenone (BOLD) presence in cattle urine is under debate within the European Union. Separation of conjugated and unconjugated forms of 17a-boldenone (a-BOLD) and 17(3-boldenone ((3-BOLD) and presence of related molecules as androsta-1,4-diene-3,17-dione (ADD) appear critical points for the decision of an illegal use. The aim of this study is a new analytical approach of Pag. 9 di 300 31/08/2011 BOLD and ADD confirmation in cattle urine. The separation between conjugated and unconjugated forms of BOLD was obtained by a preliminary urine liquid–liquid extraction step with ethyl acetate. In this step the organic phase extracts only unconjugated BOLD and ADD, while BOLD in conjugated form remain in urine phase.. Afterwards the urine phase, contains conjugated BOLD, was suhjected to an enzymatic deconjugation. Solid-phase extraction (OASIS-HLB Waters) was used for the purification and concentration of analytes in organic and urine phases and liquid chromatography ion electrospray tandem mass spectrometry (LC–MS–MS) was applied for the confirmation of BOLD and ADD, using deuteriumlabelled 17(3-boldenone (BOLD-d3) as internal standard. The method was validated as a quantitative confirmatory method according to the Commission Decision 2002/657/CE. The results obtained demonstrate that the developed method show very high specificity, pecision, trueness and ruggedness. Decision limits (CCoc) smaller than 0.5 ng mL-' were obtained for each analyte. ID nr. 3499 Di_Francesco A, Baldelli R, Cevenini R, Magnino° S, Pignanelli S, Salvatore D, Galuppi R, Donati M Seroprevalence to chlamydiae in pigs in Italy Vet Rec. - Vol. 159 no 25 ( 2006). - p 849-850. - 23 bib ref Impact factor: 1,017 ID nr. 3517 Lanzi° G, de_Miranda JR, Boniotti° MB, Cameron GE, Lavazza° A, Capucci° L, Camazine SM, Rossi C Molecular and biological characterization of deformed wing virus of honeybees (Apis mellifera L.) J Virol. - Vol. 80 no 10 ( 2006). - p 4998-5009. - 77 bib ref Impact factor: 5,178 Project AMA - An investigation into Varroa-associated viruses of bees. - Sabatini Dr.ssa Anna Gloria - UO - MIPA - 1999 - 0,00 LIT - 06/12/2000 0.00.00 - 07/01/1976 0.00.00 - 1 - H2 - Reparto di Biologia Molecolare - Rossi Dr. Cesare - I Deformed wing virus (DWV) of honeybees (Apis mellifera) is closely associated with characteristic wing deformities, abdominal bloating, paralysis, and rapid mortality of emerging adult bees. The virus was purified from diseased insects, and its genome was cloned and sequenced. The genomic RNA of DWV is 10,140 nucleotides in length and contains a single large open reading frame encoding a 328-kDa polyprotein. The coding sequence is flanked by a 1,144-nucleotide 5' nontranslated leader sequence and a 317-nucleotide 3' nontranslated region, followed by a poly(A) tail. The three major structural proteins, VP1 (44 kDa), VP2 (32 kDa), and VP3 (28 kDa), were identified, and their genes were mapped to the N-terminal section of the polyprotein. The C-terminal part of the polyprotein contains sequence motifs typical of well-characterized picornavirus nonstructural proteins: an RNA helicase, a chymotrypsin-like 3C protease, and an RNAdependent RNA polymerase. The genome organization, capsid morphology, and sequence comparison data indicate that DWV is a member of the recently established genus I flavirus. ID nr. 3518 Stacchiotti A, Borsani E, Riccia F, Lavazza° A, Rezzani R, Bianchi R, Rodella LF Bimoclomol ameliorates mercuric chloride nephrotoxicity through recruitment of stress proteins Toxicol Lett. - Vol. 166 ( 2006). - p 168-177. - 42 bib ref Impact factor: 2,43 Bimoclomol (BIM), is a stress proteins coinducer, that acts synergistically with a mild stressor to activate cytoprotective stress proteins. BIM has been successfully utilized in animal models for the treatment of Pag. 10 di 300 31/08/2011 various nervous, cardiac and cerebrovascular diseases. Mercuric chloride (HgC12) induces acute renal failure in rats by a single dosage. The present in vivo study was conduc to assess the efficacy of BIM against acute HgC12 nephrotoxicity. At different times after BIM and/or HgC12 exposure we evaluated renal morphology and the localization/abundance of three stress proteins (HSP72, GRP75, HSP60) by electron microscopy immunohistochemistry and Western blot analysis. BIM delivery to rats 6 h before mercury, ameliorated damage to renal ultrastructure, with recovery of tubular and mitochondrial membranes 24 h after mercury treatment. In rats pretreated with BIM prior HgC12 exposure, HSP72 was significantly overexpressed in proximal tubules in a time-dependent manner. In contrast, the amou of GRP75 and HSP60 after BIM pretreatment were comparable to the group treated with mercury alone, but these stress proteins had translocated to the nuclei at 14 and 24 h, respectively. These novel findings suggest that BIM mitigates H902 nephrotoxicity in rats through the early recruitment of stress proteina midcortical proximal tubules that are the main renal mercury-targets. ID nr. 3519 Martella V, Bànyai K, Ciarlet M, Iturriza_Gómara M, Lorusso E, De_Grazia S, Arista S, Decaro N, Elia G, Cavalli A, Corrente M, Lavazza° A, Baselga R, Buonavoglia C Relationships among porcine and human P[6] rotaviruses : evidence that the different human P[6] lineages have originated from multiple interspecies transmission events Virology. - Vol. 344 ( 2006). - p 509-519. - 64 bib ref Impact factor: 3,08 Project PRF2003307 - Genetic and antigenic diversity of rotaviruses – study of the evolutionary mechanisms and implications for diagnosis and vaccination - Gentile Dr. Mattia - UO - MINSAN - 2003 256800,00 EUR - 01/03/2004 0.00.00 - 31/10/2006 0.00.00 - 7 - G1 - Reparto di Virologia e Sierologia Specializzata - Lavazza Dr. Antonio - I Porcine rotavirus strains (PoRVs) bearing human-like VP4 P[6] gene alleles were identified. Genetic characterization with either PCR genotyping or sequence analysis allowed to determine the VP7 specificity of the PoRVs as G3, G4, G5 and G9, and the VP6 as genogroup I, that is predictive of a subgroup I specificity. Sequence analysis of the VP8* trypsin-cleavage product of VP4 allowed PoRVs to be characterized further into genetic lineages within the P[6] genotype. Unexpectedly, the strains displayed significantly higher similarity (up to 94.6% and 92.5% at aa and nt level, respectively) to human M37-like P[6] strains (lineage 1), serologically classifiable as P2A, or to the atypical Hungarian P[6] human strains (HRVs), designated as lineage V (up to 97.0% aa and 96.1% nt), than to the porcine P[6] strain Gottfried, lineage II «85.1% aa and 82.2 nt), which is serologically classified as P213. Interestingly, no P[6] PoRV resembling the original prototype porcine strain, Gottfried, was detected, while Japanase P[6] PoRV clustered with the atypical Japanasc GI human strain AU 19. By analysis of the l Oth and 11th genome segments, all the strains revealed a NSP413 genogroup (Wa-like) and a NSP5/6 gene of porcine origin. These findings strongly suggest interspecies transmission of rotavirus strains and/or genes, and may indicate the occurrence of at least 3 separate rotavirus transmission events between pigs and human, providing convincing evidence that evolution of human rotaviruses is tightly intermingled with the evolution of animal rotaviruses. ID nr. 3520 Martella V, Ciarlet M, Bànyai K, Lorusso E, Cavalli A, Corrente M, Elia G, Arista S, Camero M, Desario C, Decaro N, Lavazza° A, Buonavoglia C Identification of a novel VP4 genotype carried by a serotype G5 porcine rotavirus strain Virology. - Vol. 346 ( 2006). - p 301-311. - 73 bib ref Impact factor: 3,08 Project PRF2003307 - Genetic and antigenic diversity of rotaviruses – study of the evolutionary mechanisms and implications for diagnosis and vaccination - Gentile Dr. Mattia - UO - MINSAN - 2003 256800,00 EUR - 01/03/2004 0.00.00 - 31/10/2006 0.00.00 - 7 - G1 - Reparto di Virologia e Sierologia Specializzata - Lavazza Dr. Antonio - I Pag. 11 di 300 31/08/2011 Rotavitus genome segment 4, encoding the spike outer capsid VP4 protein, of a porcine rotavirus (PoRV) strain, 134.04-15, identified in Italy was sequenced, and the predicted amino acid (aa) sequence was compared to those of all known VP4 (P) genotypes. The aa sequence of the fullength VP4 protein of the PoRV strain 134.'04-15 showed aa identity values ranging from 59.7% (bovine strain KK3, P8[11]) to 86.09% (porcine strain A46, P[13]) with those of the remaining 25 P genotypes. Moreover, aa sequence analysis of the corresponding VP8* trypsin cleavage fragment revealed that the PoRV strain 134/ 4-15 shared low identity, ranging from 37.52'% (bovine strain 993'83, P[t 7]) to 73.6°% (porcine strain MDR-13, P[13]), with those of the remaining 25 P genotypes. Phylogenetic relationships showed that the VP4 of the PoRV strain 134.;04-15 shares a common evolutionary origin with porcine P[13] and tapine P[22] rotavirus strains. Additional sequence analyses of the VP7, VP6, and NSP4 genes of the PoRV strain 134/04-15 revealed the highest VP7 aa identity (95.9%r) to G5 porcine strains, a porcine-like VP6 within VP6 genogroup I, and a Walike (genotype B) NSP4, respectively. Altogether, these results indicate that the PoRV strain 134/04-15 should be considered as prototype of a new VP4 genotype, P[26], and provide further evidence for the vast genetic and antigenic diversity of group A rotavinises. ID nr. 3536 Ferrari M Differentiative potential of cardiomyocyte satellite cells and possible utilization in cardiac tissue repair Eur J Histochemistry. - Vol. 3 ( 2006). - p 210? Workshop "Skeletal Muscle Fiber: Morpho-Functional Patterns and Technical Approaches " : Urbino, Italy : October 3-6th, 2006) Impact factor: 0,99 Project PRF2003304 - Comparative study of the efficacy of the immunizing systems towards type 1 herpetic viruses in humans and animals - Guercio Dr.ssa Annalisa - UO - MINSAN - 2003 - 212500,00 EUR - 01/02/2004 0.00.00 - 30/09/2006 0.00.00 - 1 - L1 - Centro Substrati Cellulari - Ferrari Dr.ssa Maura - I One possible strategy in the utilization of cell precursors in cardiac tissue damage repair concerns satellite cells. These are localised between mature myofiber basal lamina and cell membrane, on fiber surface. There are responsible of muscle tissue maintaining, as well as of its repair and regeneration. There are generally quiescent ce progenitors, but, alter activation, they generate a population of myoblasts which proliferate and differentiate, to form plurinucleate myotubes. Satellite cells are different, if compared to myoblasts, for biochemical and biological characteristics. Skeletal muscle satellite cells have been also reported to have a certain plasticity and consequent differentiation capabilites directed to different cell lineages, including myocytes. These observations, together with autologous cell utilization, addressed the interest to the possible use of differentiated satellite cells in altered cardiac tissue repair. The experiments have been carried out on ovine cells, which, after in vitro amplification, have been inoculated in the same animal, undergoing an experimentally induced cardiac lesion. The results demonstrated a ce scarce capability to repair the altered tissue, probably because of an impaired integration with cardiomyocytes. ID nr. 3538 Sassera D, Beninati T, Bandi C, Bouman EAP, Sacchi L, Fabbi° M, Lo N Candidatus Midichloria mitochondrii', an endosymbiont of the tick Ixodes ricinus with a unique intramitochondriai lifestyle Int J Syst Evol Microbiol. - Vol. 56 ( 2006). - p 2535-2540. - 24 bib ref Impact factor: 2,744 Project PRF2004301 - Diagnosis of avian influenza and investigation into gene exchange between animal and human influenza virus strains. - Capua Dr.ssa Ilaria - UO - MINSAN - 2004 - 239200,00 EUR - 02/05/2005 0.00.00 - 01/09/2007 0.00.00 - 1 - G1 - Reparto di Virologia e Sierologia Pag. 12 di 300 31/08/2011 Specializzata - Cordioli Dr. Paolo - I An intracellular bacterium with the unique ability to enter mitochondria exists in the European vector of Lyme disease, the hard tick Ixodes ricinus. Previous phylogenetic analyses based on 16S rRNA gene sequences suggested that the bacterium formed a divergent lineage within the Rickettsiales (Alphaproteobacteria). Here, we present additional phylogenetic evidence, based on the gyrB gene sequence, that confirms the phylogenetic position of the bacterium. Based on these data, as well as electron microscopy (EM), in situ hybridization and other observations, we propose the name Candidatus Midichloria mitochondrii' for this bacterium. The symbiont appears to be ubiquitous in females of 1. ricinus across the tick's distribution, while lower prevalence is observed in males (44%). Based on EM and in situ hybridization studies, the presence of 'Candidatus M. mitochondrii' in females appears to be restricted to ovarian cells. The bacterium was found to be localized both in the cytoplasm and in the intermembrane space of the mitochondria of ovarian cells. 'Candidatus M. mitochondrii' is the first bacterium to be identified that resides within animal mitochondria. ID nr. 3557 Bochkov YA, Tosi° P, Massi° P, Drygin VV Phylogenetic analysis of partial S1 and N gene sequences of infectious bronchitis virus isolates from Italy revealed genetic diversity and recombination Virus Gen. - Vol. 35 ( 2007). - p 65-71. - 35 bib ref Impact factor: 1,102 Project PRC2004010 - Molecular characterization of viral variants responsible for diffusive infections of domestic animals - Pacciarini Dr.ssa Maria - Solo - MINSAN - 2004 - 175000,00 EUR 01/07/2005 0.00.00 - 31/12/2007 0.00.00 - 1 - H2 - Reparto di Biologia Molecolare - Fallacara Dr.ssa Francesca - I 2 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I 3 - N8 - Reggio Emilia - Dottori Dr. Michele - I 4 - N3 - Forlì - Massi Dr.ssa Paola - I A total of ten infectious bronchitis virus (IBV) isolates collected from commercial chickens in Italy in 1999 were characterized by RT-PCR and sequencing of the S1 and N genes. Phylogenetic analysis based on partial S1 gene sequences showed that five field viruses clustered together with 793/B-type strains, having 91.3—98.5% nucleotide identity within the group, and one isolate had very close sequence relationship (94.6% identity) with 624/I strain. These two IBV types have been identified in Italy previously. The other three variant isolates formed novel genotype detected recently in many countries of Western Europe. For one of these variant viruses, Italy-02, which afterwards became the prototype strain, the entire S1 gene was sequenced to confirm its originality. In contrast, phylogenetic analysis of more conserved partial N gene sequences, comprising 1— 300 nucleotides, revealed different clustering. Thus, three variant IBVs of novel Italy-02 genotype, which had 96.7—99.2% S1 gene nucleotide identity with each other, belonged to three separate subgroups based on N gene sequences. 624/I-type isolate Italy-06 together with Italy-03, which was undetectable using S1 gene primers, shared 97.7% and 99.3% identity, respectively, in N gene region with vaccine strain H120. Only one of the 793/B-type isolates, Italy-10, clustered with the 793/B strain sharing 99.3% partial N gene identity, whereas the other four isolates were genetically distant from them (only 87.7—89.7% identity) and formed separate homogenous subgroup. The results demonstrated that both mutations and recombination events could contribute to the genetic diversity of the Italian isolates. ID nr. 3561 Cattoli G, De_Battisti C, Toffan A, Salviato A, Lavazza° A, Cerioli° M, Capua I Co-circulation of distinct genetic lineages of astroviruses in turkeys and guinea fowl Arch Virol. - Vol. 152 ( 2007). - p 595-602. - 24 bib ref Impact factor: 1,85 Pag. 13 di 300 31/08/2011 Viruses belonging to the genus Astrovirus have been increasingly associated with enteritis in mammalian and avian species, including turkeys. More recently, astroviruses have also been detected in diseased guinea fowl. In turkeys, two genetically distinct types of astrovirus have been reported, namely turkey astrovirus 1 and 2 (TAstV1 and TAstV2). The prevalence and the pathogenesis of astrovirus infections in this species is currently unknown, with the exception of data generated in the USA. In the present report, we have demonstrated the co-circulation of distinct genetic lineages of astroviruses infecting turkeys and guinea fowl. The predominant lineage infecting turkeys is genetically related to the American TAstV2, but genetic variability within this lineage was demonstrated. Other isolates appeared to be either TastV1-related or unrelated to any other known isolate. Astroviruses infecting guinea fowl were more closely related to TAstV2, and interspecies transmissions between turkeys and guinea fowl is suggested as a possible mechanism by which these viruses may have evolved, based on the genetic data available. This investigation provides genetic and epidemiological information contributing to a better understanding of enteric viral infections in turkeys and guinea fowl. ID nr. 3567 Paltrinieri S, Spagnolo V, Giordano A, Moreno_Martin° A, Luppi° A Influenza virus tye A serosurvey in cats Emerg Inf Dis. - Vol. 13 no 4 ( 2007). - p 662-664. - 10 bib ref Impact factor: 5,094 ID nr. 3568 Parida S, Fleming L, Gibson D, Hamblin PA, Grazioli° S, Brocchi° E, Paton DJ Bovine serum panel for evaluating foot-and-mouth disease virus nonstructural protein antibody tests J Vet Diagn Investig. - Vol. 19 no 5 ( 2007). - p 539-544. - 18 bib ref Impact factor: 1,145 Project SSPE-CT-2003-503603 - Improvement of foot and mouth disease control by ethically acceptable methots based on scientifically validated assays and new knowledge on FMD vaccines, including the impact of vaccination (FMD-IMPROCON). - De Clercq Dr. Kris - UO - CE - 2003 - 2399907,00 EUR - 01/01/2004 0.00.00 - 31/12/2008 0.00.00 - 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I A panel of 36 sera has been assembled from experimental cattle that had been infected by inoculation or contact exposure with 4 serotypes of foot-and-mouth disease virus (FMDV) with or without prior vaccination. Virus replication and persistente had been characterized in all of the animals. The proportion of the sera scored positive by 5 tests for ant"bodies to the nonstructural proteins of FMDV varied, suggesting that the panel can discriminate between the sensitivity with which such tests are able to identify infected cattle. Use of this panel will help in assessment of new tests and quality control of existing methods. ID nr. 3579 Bonilauri° P, Merialdi° G, Dottori° M, Barbieri° I Presence of PRRSV in wild boar in Italy Vet Rec. - Vol. 158 no 3 ( 2006). - p 107-108. - 1 bib ref Impact factor: 1,017 ID nr. 3580 Circella E, Camarda A, Martella V, Bruni G, Lavazza° A, Buonavagoglia G Coronavirus associated with an enteric syndrome on a quail farm Avian Pathol. - Vol. 36 n 3 ( 2007). - p 251-258. - 36 bib ref Pag. 14 di 300 31/08/2011 Impact factor: 1,809 An enteric syndrome was observed in quail (Coturnix coturnix) semi-intensively reared for restocking in Apulia southern Italy ). The birds showed depression, severe diarrhoea, dehydration and reduced growth. mortality occurred particularly in young birds. At necropsy the prominent lesion was enteritis. A coronavirus was detected by electron microscopy and reverse transcriptase-polymerase chain reaction in the faeces and in the intestinal content of the dead quails. The virus could not be cultivated in chicken embryos. By sequence analyses of a fragment (409 nucleotides) of region lb of the polymerase gene, the quail coronavirus displayed =93% nucleotide identity to avian coronaviruses (group 3 coronaviruses)—whereas by analysis of the Sl portion of the spike protein-encoding gene, the quail coronavirus displayed 16°% to 18% amino acid identity with infectious bronchitis virus. and 79% to 81% identity with turkey coronavirus. Altogether, the findings suggest the existence of a novel coronavirus genetically related to turkey coronavirus. ID nr. 3583 Terregino C, De_Nardi R, Guberti V, Scremin M, Raffini° E, Moreno_Martin° A, Cattoli G, Bonfanti l, Capua I Active surveillance for avian influenza viruses in wild birds and backyard flocks in Northern Italy during 2004 to 2006 Avian Pathol. - Vol. 36 n 4 ( 2007). - p 337-344. - 28 bib ref Impact factor: 1,809 Following the avian influenza epidemics that occurred in Italy between 1997 and 2003, the Italian Ministry of Health in collaboration with veterinary authorities promoted, funded and implemented a national surveillance programme. The main objectives of the surveillance effort were to identify avian influenza viruses circulating in wild birds and to investigate the role of backyard poultry flocks in the dynamics of infection in a densely populated poultry area. Over 2 years (2004 to 2006), 164 backyard flocks and 4083 wild birds (mainly migratory Anseriformes and Charadriiformes) were sampled in three regions in the North of Italy. Samples collected were screened by means of real-time reverse transcriptase-polymerase chain reaction and the positive samples were processed for attempted virus isolation in embryonated fowl’s specific pathogen free eggs. At the end of the study period, 27 low-pathogenic avian influenza viruses had been isolated from backyard flocks and 49 strains obtained from wild birds. Of these, 26 belonged to the H5 or H7 subtype and were closely related to contemporary low-pathogenic strains of Eurasian lineage. The findings confirm that backyard free-range farming is at high risk for avian influenza virus introduction, and confirm the role of wild waterfowl in the introduction and perpetuation of low-pathogenic avian influenza viruses during the winter season in Southern Europe. ID nr. 3587 Recordati C, Gualdi° V, Tosi S, Vailati_Facchini R, Pengo G, Luini° M, Simpson KW, Scanziani E Detection of Helicobacter spp. DNA in the oral cavity of dogs Vet Microbiol. - Vol. 119 ( 2007). - p 346-351. - 27 bib ref Impact factor: 2,073 The mode of acquisition of gastric Helicobacter spp. infection in dogs has not been determined. It is suspected that oral–oral and faecal–oral transmission may be involved. The present study sought to determine if Helicobacter spp. DNA is present in the oral cavity of healthy and vomiting dogs. Thirty-eight pet dogs (27 vomiting and 11 clinically healthy) were studied. The presente of Helicobacter spp. was determined by single and nested PCR evaluation of DNA extracted from saliva, dental plaque and gastric biopsy samples. Helicobacter spp. DNA was detected by nested PCR in 36-(94.7%) gastric biopsies, 17 (44.7%) dental plaque and 19 (50%) saliva samples out of the 38 dogs examined. Overall 27 (71.1 %) dogs screened by nested PCR were found to harbour Helicobacter spp. DNA in the oral cavity (dental plaque and/or saliva). There was Pag. 15 di 300 31/08/2011 no significant differente in the prevalence of Helicobacter spp. DNA in the oral cavity of vomiting and healthy dogs, and the time from vomiting to oral sampling did not have significant impact. This study confirms the high prevalence of gastric Helicobacter spp. infection in dogs, and reveals that Helicobacter spp. DNA is detectable in the oral cavity of over 70% of dogs. These findings support the possibility of oral–oral transmission between dogs and that the canine oral cavity may act as source of non-pylori Helicobacter spp. infection for humans. ID nr. 3596 Moroni P, Pisoni G, Varisco° G, Boettcher P Effect of intramammary infection in Bergamasca meat sheep on milk parameters and lamb growth J Dairy Res. - Vol. 74 no 3 ( 2007). - p 340-344. - 18 bib ref Impact factor: 1,407 Pooled milk samples from 115 Bergamasca meat sheep were collected aseptically five times from lambing Io weaning Io determine the prevalence of intramammary infection, somatic cell counts and milk quality parameters (protein, fat and lactose), and effects of infection on lamb weight gain. The global prevalence of subclinical intramammary infection was 51.2%. The Staphylococcus genus was responsible (or the greatest prevalence (53-3% among infected udders). Staphylococcus aureus was isolated in 8.4% of infected milk samples. Infection status had significant effects on fat and protein percentage and on somatic cell count. Lamb growth was greatest for lambs of ewes with no infection and decreased as the number of infected samples increased. No significant differences were detected in the growth of lambs with dams infected by different bacterial species. ID nr. 3597 Cattaneo D, Dell'Orto V, Varisco° G, Agazzi A, Savoini G Enrichment in n — 3 fatty acids of goat's colostrum and milk by maternal fish oil supplementation Small Rumin Res. - Vol. 64 ( 2006). - p 22-29. - 41 bib ref Impact factor: 0,777 Long-chain n — 3 polyunsaturated fatty acids (PUFAs), particularly docosahexaenoie acid (DHA), have been shown to be essential during perinatal growth and development of mammals. The study was conducted to determine whether the inclusion of fish oil in dairy goats diet during late gestation and early lactation would increase the proportion of n — 3 PUFAs in colostral and mature mille From 3 weeks before kidding throughout 42 days of lactation, 14 dairy goats were fed either a control diet or a diet containing 1.1 % fish oil (FO). Dietary treatment did not affect main components of colostrum, but lowered percentages of fat and lactose in mature mille. In colostrum, FO supplementation lowered the proportions of C18:0, C18:2, C18:3 and elevated those of C16:1 and very long-chain n — 3 PUFAs, mainly EPA (eicosapentaenoic acid) and DHA. In mature milk, FO supplementation lowered the proportion of C 18:O and raised C 16:1 and n — 3 PUFAs (C18:3,EPA and DHA). Estimated transfer efficiencies for EPA and DHA into mature milk were 14 and 7%, respectively. Results suggest that goat's colostrum and milk can be enriched in n-3 PUFAs by maternal dietary fish oil supplementation during late gestation and early lactation. ID nr. 3614 Paci G, Lavazza° A, Ferretti M, Bagliacca M Relationship between habitat, densities and metabolic profile in brow hares (Lepus europaeus Pallas) Ital J Anim Sci. - Vol. 6 no 3 ( 2007). - p 241 -255. - 25 bib ref Impact factor: 0,172 Pag. 16 di 300 31/08/2011 È stato effettuato uno studio per conoscere le relazioni tra alcune caratteristiche ambientali, la densità di popolazione ed i parametri ematici nella lepre. A tale scopo, 33 aree protette (Zone di Ripopolamento e Cattura) della provincia di Firenze sono state sottoposte a monitoraggio ambientale e censimento delle lepri. Per ogni area sono stati effettuati i seguenti rilievi ambientali: altitudine; rapporto tra aree aperte e area totale; esposizione prevalente; natura del suolo; dotazioni idriche naturali; acclività; antropizzazione; presenza predatori; adiacenze boschive perimetrali; presenza di alberi e cespugli; controllo caccia di frodo; controllo predatori; coltivazioni; colture a perdere. Dopo il censimento tutte le lepri catturate sono state traslocate in zone libere di caccia. Un totale di 172 soggetti è stato sottoposto ai seguenti rilievi: prelievo ematico dalla vena auricolare per le analisi del glucosio, colesterolo, urea, AST, ALT, Ca, P, Mg, Na, K e Cl, determinazione dell'età, del sesso e del peso vivo. Le relazioni fra densità di popolazione e caratteristiche ambientali sono state analizzate singolarmente, quindi tutte le caratteristiche ambientali sono state sottoposte al processo di selezione "stepwise" in funzione del peso corporeo rilevato nelle lepri. 1 dati ematici sono stati analizzati mediante il metodo dei minimi quadrati considerando le caratteristiche ambientali, la densità censita, l'età ed il sesso degli animali come fonti di variazione categoriche, l'interazione sesso * età e lo stato fisiologico delle femmine "nested' nel sesso femminile. I risultati hanno evidenziato la presenza di una più alta densità di popolazione e le migliori condizioni corporee nelle zone collinari caratterizzate da aree aperte con scarsi boschetti e confini boscosi, con suolo di medio impasto, scarsa presenza di predatori, limitata antropizzazione e abbondante disponibilità idrica naturale e zone ricche di cespugli adatti al rifugio. Lo studio dei valori assoluti del profilo metabolico, indicatori dello stato fisiologico e nutritivo degli animali allevati, non ha evidenziato alcuna carenza nutrizionale negli animali selvatici nel periodo invernale considerato. Presumibilmente, come i dati dei censi-menti, devono essere ripetuti per più anni dal momento che è la variazione ad essere utile come indicatore di stato e non il valore assoluto. ID nr. 3616 Knowles NJ, Wilsden G, Reid SM, Ferris NP, King DP, Paton DJ, Fevereiro M, Brocchi° E Reappearance of swine vesicular disease virus in Portogal Vet Rec. - Vol. 161 no 2 ( 2007). - p 71 Impact factor: 1,168 Project PRC2002007 - Improvement of SVD diagnosis: identification and neutralization of swine enteroviruses affecting SVD virus isolation in tissue cultures. - Brocchi Dr.ssa Emiliana - Capofila MINSAN - 2002 - 208749,00 EUR - 15/04/2004 0.00.00 - 31/12/2006 0.00.00 - 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I 2 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I 3 - IZSVE - Nardelli Dr. Stefano - E 4 - ISS - Tollis Dr.ssa Maria - E ID nr. 3621 Ferrari° M, Corradi A, Lazzaretti M, De'Cillà° M, Losi° CG, Villa° R, Lanfranchi° A Adult stem cells : perspectives for therapeutic applications Vet Res Commun. - Vol. 31 suppl 1 ( 2007). - p 1-8. - 17 bib ref Impact factor: 0,377 The use of adult stem cells in tissue regeneration appears to be a powerful research tool, due to the intrinsic characteristics of these cells, i.e., self-renewal and unlimited capacity for proliferation. In particular, mesenchymal stem cells (MSCs) obtained from bone marrow or peripheral blood can be easily isolated, cultivated, propagated and can be differentiated into several specialized celi types thanks to their plasticity. Among these cells, MSCs can evolve into cardiac cell lineages. Since heart damage leads to the irreversible loss of cardiac function, cell transplantation could be a potential therapy for heart injury. Our laboratory has focused on the purification and expansion of rat and sheep MSCs, their differentiation into cardiomyocytes and their characterisation. Numerous results indicate that MSCs could be promising for therapy, however we need to better understand the biology of stem cells to improve methods for delivery and/or pharmacological activation. These techniques can indeed track engrafted cells and systems to guarantee their safe use. Pag. 17 di 300 31/08/2011 ID nr. 3622 Goris N, Praet N, Sammin D, Yadin H, Paton D, Brocchi° E, Berkvens D, De_Clercq K Foot-and-mouth disease non-structural protein serology in cattle: use of a Bayesian framework to estimate diagnostic sensitivity and specificity of six ELISA tests and true prevalence in the field Vaccine. - Vol. 25 no 41 ( 2007). - p 7177-7196. - 29 bib ref Impact factor: 3,159 Project SSPE-CT-2003-503603 - Improvement of foot and mouth disease control by ethically acceptable methots based on scientifically validated assays and new knowledge on FMD vaccines, including the impact of vaccination (FMD-IMPROCON). - De Clercq Dr. Kris - UO - CE - 2003 - 2399907,00 EUR - 01/01/2004 0.00.00 - 31/12/2008 0.00.00 - 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I The diagnostic performance of six foot-and-mouth disease (FMD) assays for detection of antibodies to the non-structural proteins (NSP) of the FMD virus (FMDV) was estimated using a Bayesian analysis on field sera from cattle of unknown infection status originating from post-FMDV outbreak situations in Israel and Zimbabwe. Estimations of the disease prevalence in both populations were also obtained. The diagnostic sensitivity estimates did not differ between both field studies, although overall Bayesian estimates were markedly higher than those previously reported based on sera from comparable experimentally infected (vaccinated) cattle populations. All NSP-based assays demonstrated a lower diagnostic specificity when applied to the Zimbabwean sera compared to both published specificities and similar Bayesian specificity estimates derived for the Israeli dataset. In Israel, the disease prevalence was estimated at 23.9% (95% credibility interval: 19.5-28.8%), whereas 65.4% (59.0-72.5%) was found in Zimbabwe. The need for reliable diagnostic test performance estimates and the benefits of Bayesian analysis in obtaining them are also addressed. ID nr. 3623 Roncada P, Begni° B, Amadori° M, Cristoni S, Archetti° IL, Boldetti° C, Fortin R, Deriu F, Greppi GF Blood serum proteome for welfare evaluation in pigs Vet Res Commun. - Vol. 31 suppl 1 ( 2007). - p 321-325. - 4 bib ref Impact factor: 0,377 ID nr. 3624 Bonardi S, Paris A, Bacci C, D'Incau° M, Ferroni L, Brindani F Detection and characterization of Yersinia enterocolitica from pigs and cattle Vet Res Commun. - Vol. 31 suppl 1 ( 2007). - p 347-350 - 9 bib ref Impact factor: 0,377 ID nr. 3625 Ghidini S, Zanardi E, Conter M, Varisco° G, Bolzoni° G, Ianieri A Residues of aminoglycosides in milk : confirmatory analysis Vet Res Commun. - Vol. 31 suppl 1 ( 2007). - p 365-367 - 2 bib ref Impact factor: 0,377 Project PRC2004001 - Design, development and production of reference samples with known content for the inhibiting-substances assay in milk and validation of a test procedure for cheese - Bolzoni Dr. Giuseppe - Solo - MINSAN - 2004 - 45000,00 EUR - 01/07/2005 0.00.00 - 31/12/2006 0.00.00 1 - I4 - Reparto produzioni zootecniche e sorveglianza epidemiologica degli allevamenti - Varisco Dr. Giorgio - I Pag. 18 di 300 31/08/2011 2 - I4 - Reparto produzioni zootecniche e sorveglianza epidemiologica degli allevamenti Bertocchi Dr. Luigi - I 3 - I4 - Reparto produzioni zootecniche e sorveglianza epidemiologica degli allevamenti - Bolzoni Dr. Giuseppe - I ID nr. 3628 Bonardi S, Foni° E, Chiapponi° C, Salsi A, Brindani F Detection of verocytotoxin-producing Escherichia coli serogroups O157 and O26 in the cecal content and lymphatic tissue of cattle at slaughter in Italy J Food Prot. - Vol. 70 no 6 ( 2007). - p 1493-1497. - 30 bib ref Impact factor: 1,921 Verocytotoxin-producing Escherichia coli (VTEC) has emerged as a foodborne pathogen that can cause severe and potentially fatal illnesses, such as hemorrhagic colitis or the hemolvtie uremie syndrome. In this study, 182 cattle at slaughter (119 dairy cows and 63 feedlot cattle) were randomly selected and tested for the presence of VTEC serogroups 026, 0103, 0111, 0145, and 0157 in their cecal content and lymphatic tissue (tonsils or mesenteric lymph nodes). A total of 364 samples were evaluated with an immunomagnetic separation technique followed by slide agglutination. Presumptive VTEC 026. 0103, 0111, 0145, and 0157 isolates were tested by Vero cell assay for verocvtotoxin production and by multiplex PCR assay for the detection of vtx1, vtx2 eae, and E-hlyA genes. VTEC 0157 was detected in 6 (3.3%o) of 182 animals, and VTEC 026 was detected in 1 (0.5%) of 182 animals. No VTEC 0103. VTEC 0111, or VTEC 0145 isolates were found in cattle feces, but one VTEC 091:H- vtx2(+in apice) eae(- in apice), E-hlyA(-in apice) strain nonspecifically cross-reacted with the VTEC 0103 type. The prevalence of VTEC 0157 in the lymphatic tissue of cattle was 1.107° in both tonsils (1 of 93 samples) and mesenteric lymph nodes (1 of 89 samples). Lymphatic tissue contamination was observed only in VTEC 0157 intestinal carriers: two (33.3%) of six fecal carriers were simultaneously VTEC 0157 lymphatic carriers. This finding suggests that VTEC 0157 contamination of meat does not necessarily come from feces or the environment. No other VTEC serogroups were detected in the lymphatic tissue of slaughtered cattle. ID nr. 3634 Campitelli L, Di_Martino A, Spagnolo D, Gavin JDS, Di_Trani L, Facchini M, De_Marco MA, Foni° E, Chiapponi° C, Moreno_Martin° A, Chen H, Guan Y, Delogu M, Donatelli I Molecular analysis of avian H7 influenza viruses circulating in Eurasia in 1999-2005: detection of multiple reassortant virus genotypes J Gen Virol. - Vol. 89 no 1 ( 2008). - p 48-59. - 60 bib ref Impact factor: 3,120 Project CE ISS FLUPAN - Preparing for an influenza Pandemic (Flupan) - Donatelli Dr.ssa Isabella - UO CE - 2001 - 99999999,00 EUR - 23/04/2002 0.00.00 - 30/06/2004 0.00.00 - 2 - N5 - Parma Barigazzi Dr. Giuseppe - I 3 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I PRC99007 - Epidemiological surveillance of influenza virus re-circulation in domestic and wild animals: an investigation into antigenic characterization of circulating strains in susceptible domestic animal species (pig, horse, avian species), intensification of surveillance in wild avian species and from rural flocks, new immunizing strategies for swine - Barigazzi Dr. Giuseppe - Capofila MINSAN - 1999 - 01/03/2001 0.00.00 - 28/08/2003 0.00.00 - 347643000,00 LIT 1 - N5 - Parma Foni Dr.ssa Emanuela - I 2 - G1 - Reparto di Virologia e Sierologia Specializzata - Moreno Martin Dr.ssa Ana - I 3 - N3 - Forlì - Massi Dr.ssa Paola - I 4 - ISS - Donatelli Dr.ssa Isabella - E 5 - INFS - De Marco Dr.ssa Maria Alessandra - E 6 - ISS 2 - Castrucci Dr.ssa Maria Rita - E Avian influenza infections by high and low pathogenicity H7 influenza viruses have caused several outbreaks Pag. 19 di 300 31/08/2011 in European poultry in recent years, also resulting in human infections. Although in some cases the source of H7 strains from domestic poultry was shown to be the viruses circulating in the wild bird reservoir, a thorough characterization of the entire genome of H7 viruses from both wild and domestic Eurasian birds, and their evolutionary relationships, has not been conducted. In our study, we have analysed low pathogenicity H7 influenza strains isolated from wild and domestic ducks in Italy and southern China and compared them with those from reared terrestrial poultry such as chicken and turkey. Phylogenetic analysis demonstrated that the H7 haemaggiutinin genes were all closely related to each other, whereas the remaining genes couid be divided into two or more phylogenetic groups. Almost each year different H7 reassortant viruses were identified and in at least two different years more than one H7 genotype co-circulated. A recent precursor in wild waterfowl was identified for most of the gene segments of terrestrial poultry viruses. Our data suggest that reassortment allows avian influenza viruses, in their natural reservoir, to increase their genetic diversity. In turn this might help avian influenza viruses colonize a wider range of hosts, including domestic poultry. ID nr. 3638 Decaro N, Mari M, Desario C, Campolo M, Elia G, Martella V, Greco G, Cirone F, Colaianni ML, Cordioli° P, Buonavoglia C Severe outbreak of bovine coronavirus infection in dairy cattle during the warmer season Vet Microbiol. - Vol. 126 ( 2008). - p 30-39. - 31 bib ref Impact factor: 2,010 Project PRF2007202 - Mammal coronaviruses: molecular epidemiology, vaccine development And implications for animal and human health - Cordioli Dr. Paolo - Capofila - MINSAN - 2007 300000,00 EUR - 01/09/2009 0.00.00 - 31/08/2011 0.00.00 - 1 - U1 - REPARTO VIROLOGIA Cordioli Dr. Paolo - I 2 - Università di Bari - Dipartimento di Sanità Pubblica e Zootecnica - Decaro Prof. Nicola - E 3 - IstitutoZooprofilattico della Sardegna - Oggiano Dr.ssa Annalisa - E 4 - Istituto Zooprofilattico della Sicilia - Guercio Dr.ssa Annalisa - E 5 - Istituo Zooprofilattico delle Venezie - Nardelli Dr. Stefano - E A severe outbreak of enteric and respiratory disease associated with bovine coronavirus (BCoV) infection is described. The outbreak occurred in a dairy herd of southern Italy in the first decade of September 2006, when summer temperatures were still recorded, affecting calves, heifers and adult cows, with a marked decrease in milk production. By virus isolation and RT-PCR targeting the S gene, BCoV was identified as the etiological agent of the outbreak, whereas bacteriological, parasitological and toxicological investigations failed to detect other causes of disease. BCoV strains with 99-100% nucleotide identity in the S gene were isolated from nasal, ocular and rectal swabs, thus proving the absence of separate clusters of virus on the basis of tissue tropism. Sequence analysis of the haemagglutination-esterase and spike proteins of the strain detected in one rectal sample (3391 06) showed a high genetic relatedness with recent BCoV isolates (9899% amino acid identity), with several unique amino acid substitutions in the S protein. The BCoV outbreak described in this paper presents interesting aspects: (i) the occurrence of a severe form of disease in the warmer season; (ii) the simultaneous presente of respiratory and enteric disease; (iii) the involvement of young as well as adult cattle. ID nr. 3639 Bellini° S, Santucci U, Zanardi° G, Brocchi° E, Marabelli R Swine vesicular disease surveillance and eradication activities in Italy Rev Sci Tech OIE. - Vol. 26 no 3 ( 2007). - p 585-593. - 20 bib ref Impact factor: 0,744 Project PRC2002007 - Improvement of SVD diagnosis: identification and neutralization of swine enteroviruses affecting SVD virus isolation in tissue cultures. - Brocchi Dr.ssa Emiliana - Capofila MINSAN - 2002 - 208749,00 EUR - 15/04/2004 0.00.00 - 31/12/2006 0.00.00 - 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I Pag. 20 di 300 31/08/2011 2 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I 3 - IZSVE - Nardelli Dr. Stefano - E 4 - ISS - Tollis Dr.ssa Maria - E Swine vesicular disease (SVD) was first observed in Italy in 1966, and was initially diagnosed as foot and mouth disease (FMD). The causative agent of SVD was classified as an Enterovirus within the family Picornaviridae. It was included in the list of diseases notifiable to the World Organisation for Animail Health (OIE) because of the similarity of its lesions to those produced by FMD; however SVD is often mild in nature and may infect pigs subclinically. During the fast decade SVD has been persistently reported in Italy, and surveillance and eradication activities are in place. The central and northern parts of Italy have been designated SVD free since 1997, while the southern regions have not achieved disease-free status. However, occasional outbreaks of SVD have occurred in central and northern Italy and have been eradicated using rigorous control measures. Most recent SVD outbreaks in Italy have been subclinical; SVD can rarely be diagnosed now on the basis of clinical signs and it is necessary to use laboratory diagnosis. This paper examines the epidemiology of SVD in Italy, and considers the measures adopted in Europe for SVD control on the basis of current knowledge of the disease. ID nr. 3641 Zavanella M, Muliari R, Mioni R, D'Incau° M Microbes and foods Microbi e alimenti / Fondazione Iniziative Zooprofilattiche e Zootecniche Brescia. - Brescia : Fondazione Iniziative Zooprofilattiche e Zootecniche, 2008. - (Atti delle Giornate di Studio Fondazione Iniziative Zooprofilattiche e Zootecniche ; 70) p 1-283 The book describes the principles of food microbiology and the main laboratory methods. It also contains an overview of the main rules concerning food hygiene and control.. ID nr. 3642 Nordengrahn A, Gustafsdottir SM, Ebert K, Reid SM, King DP, Ferris NP, Brocchi° E, Grazioli° S, Landegren U, Merza M Evaluation of a novel proximity ligation assay for the sensitive and rapid detection of foot-and-mouth disease virus Vet Microbiol. - Vol. 127 ( 2008). - p 227-236. - 14 bib ref Impact factor: 2,010 Project 2003-SSP-3-513645 - New and emerging technologies: improved laboratory and on-site detection of oie list a viruses in animals and animal products (LAB-ON.SITE) - Belak Dr. Sandor - UO - CE 2004 - 1500000,00 EUR - 01/11/2004 0.00.00 - 31/07/2008 0.00.00 - 7 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I A novel proximity ligation assay (PLA) using a pan-serotype reactive monoclonal antibody was developed and evaluated for the detection of foot-and-mouth disease virus (FMDV) in clinical samples collected from field cases of disease. The FMDV-specific PLA was found to be 100 times more sensitive for virus detection than the commonly used antigen capture-ELISA (AgELISA). As few as five TCID50 were detected in individual assays, which was comparable with the analytical sensitivity of real-time RT-PCR. Although this assay was capable of detecting diverse isolates from all seven FMDV serotypes, the diagnostic sensitivity of the PLA assay was lower than real-time RT-PCR mainly due to a failure to detect some SAT 1, SAT 2 and SAT 3 FMDV strains. In conclusion, this new PLA format has high analytical sensitivity for the detection of FMDV in clinical samples and may prove valuable as a rapid and simple tool for use in FMD diagnosis. Pag. 21 di 300 31/08/2011 ID nr. 3643 Stacchiotti A, Lavazza° A, Ferroni M, Sberveglieri G, Bianchi R, Rezzani R, Rodella LF Effects of aluminium sulphate in the mouse liver : smilarities to the aging process Exp Gerontol. - Vol. 43 ( 2008). - p 330-338. - 36 bib ref Impact factor: 2,879 Aluminium (Al) is a ubiquitous metal that is potentially toxic to the brain. Its effects on other fundamental organs are not completely understood. This morphological in vivo study sought to compare sublethal hepatotoxic changes and Al deposition in adult mice that orally ingested Al sulphate daily for 10 months, in age matched control mice that drank tap water and in senescent mice (24 months old). Livers were examined for collagen deposition using Sirius red and Masson, for iron accumulation using Perls' stain. Light, electron microscopy and morphometry were used to assess fibrosis and vascular changes. Scanning transmission electron microscopy and EDX microanalysis were used to detect in situ elemental Al. Iron deposition, transferrin receptor expression were significantly altered following Al exposure and in the aged liver but were unaffected in age matched control mice. In Al treated mice as in senescent mice, endothelial thickness was increased and porosity was decreased like perisinusoidal actin. Furthermore, Al stimulated the deposition of collagen and laminin, mainly in acinar zones 1 and 3. Pseudocapillarization and periportal laminin in senescent mice were similar to Al treated adult liver. In conclusion, prolonged Al sulphate intake accelerates features of senescence in the adult mice liver. ID nr. 3645 Decaro N, Desario C, Elia G, Martella V, Mari V, Lavazza° A, Nardi M, Buonavoglia C Evidence for immunisation failure in vaccinated adult dogs infected with canine parvovirus type 2c New microbiol. - Vol. 31 ( 2008). - p 125-130. - 38 bib ref Impact factor: 0,956 An outbreak of canine panvovirus type 2c (CPV-2c) infection in vaccinated adult dogs is reported. The disease occurred in a breeding kennel in Italy and affected 11 dogs aged between 6 months and 2.5 years, that had been repeatedly administered vaccines containing a type 2 (old type) CPV strain. CPV infection was demonstrated in all diseased dogs by an immunochromatographic test. A CPV strain was isolated from the intestinal content of a 20-monthold pregnant Bernese mountain bitch that underwent a fatal outcome. The strain was characterised as CPV-2c by means of real-time PCR assays using minor groove binder probes. The present report provides further concerns about the real efficacy of type 2-based vaccines against the antigenic variants of CPV and stresses the need for developing new vaccines prepared with the variants currently circulating in the dog population. ID nr. 3646 Moreno_Martin° A, Fallacara° F, Barbieri° I, Tosi° G, Rivallan G, Eterradossi N, Ceruti R, Cordioli° P Genetic and antigenic characterization of infectious bursal disease viruses isolated in Italy during the period 2002-2005 Avian Dis. - Vol. 51 n. 4 ( 2007). - p. 863-872 Impact factor: 1,369 Project PRC2004010 - Molecular characterization of viral variants responsible for diffusive infections of domestic animals - Pacciarini Dr.ssa Maria - Solo - MINSAN - 2004 - 175000,00 EUR 01/07/2005 0.00.00 - 31/12/2007 0.00.00 - 1 - H2 - Reparto di Biologia Molecolare - Fallacara Dr.ssa Francesca - I 2 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I 3 - N8 - Reggio Emilia - Dottori Dr. Michele - I 4 - N3 - Forlì - Massi Dr.ssa Paola - I Pag. 22 di 300 31/08/2011 During the period 2002–2005, 109 infectious bursal disease virus (IBDV) field strains were isolated from bird flocks located in various parts of Italy. Out of these strains, 91 were isolated from broilers, 12 from pullets, and six from backyard flocks. Forty-two IBDV strains were further investigated and characterized of the basis of the geographical origin, source, and clinical signs. Antigenic and genetic characterizations were carried out using a monoclonal antibody (MAb)–based antigen-capture (AC) enzyme-linked immunosorbent assay (ELISA) or a virus neutralization assay and. a reverse transcription, amplification, and direct sequencing of a genome fragment encoding the VP2 variable domain. The viruses were compared with reference IBDV strains, F52/70 (classical, 1970), 89163 (typical very virulent [vv]IBDV, 1989), 91168 (antigenically modified vvIBDV, 1991) and 94432 (antigenically modified vvIBDV, 1994) among others. Alt 42 strains were genetically characterized, and the comparison of their nucleotide sequences revealed the presence of six clusters having 100% identity, named group 1, 2, 3, 4, 5, and 6. Twelve strains, representative of each molecular group and/or with interesting amino acid sequence, were also antigenically characterized. The antigenic characterization showed six strains-151573, 157185 (group 1), 192294 (group 2), 77882 (group 3), 217 (group 4), and 192304—with the profile rypical of vvIBDV (lack of binding of MAbs 3 and 4). Two strains, 77165 and 204875 (group 6), were also related to vvIBDV but did not react with MAb 5. Three isolates exhibited a profile of cell culture–adapted viruses and classical strains but with some differences: strain 157776 reacted with alt MAbs; strain 168026 with alt MAbs except MAb 4, which weakly neutralized it; and strain 72293 with alt MAbs except MAb 9, which is rather unusual. The last strain, 213622, showed a very uncommon antigenic profile with missing or reduced binding of MAbs 3, 4, 5, 6, 8, and 9. Genetic characterization revealed 37 strains identified as vvIBDV viruses divided in 26 isolates (including groups 1, 2, 3, and 4) with the four amino acids residues rypical of vvIBDV (222A, 256I, 294I, 2995) and 11 isolates (including groups 5, 6, and 213622) with some other amino acid exchanges. Four isolates (72293, 168026, 196783, and 222220) presented an amino acid sequence closely related to attenuate classical viruses whereas the Cast isolate (157776) exhibited a rather different sequence with some mutations rypical of vvIBDV and others for cell culture–adapted viruses. Results of the antigenic and genetic characterization revealed that the majority of viruses (n = 37) were related to vvIBDV strains but, among these, 11 strains presented antigenically and genetically modified characteristics and originated, in major part, from the area where viruses have been circulating for a long time. The remaining viruses (n = 5) were related but not identical to attenuated classical viruses and came from areas where vaccination with intermediate strains is applied. ID nr. 3647 Cesari V, Toschi I, Ferrazzi V, Cesari N, Grilli G, Lavazza° A Effect of weaning age and diet on growth performance, caecal characteristics and potential pathogenetic microflora in rabbits Ital J Anim Sci. - Vol. 6 suppl 1 ( 2007). - p 755-757. - 6 bib ref Impact factor: 0,172 Project RELO2003596CUNIBENE - Welfare of farmed rabbits: associated sanitary and production traits Lavazza Dr. Antonio - Capofila - REGIONE - 2003 - 149325,00 EUR - 01/10/2003 0.00.00 29/01/2007 0.00.00 - 1 - G1 - Reparto di Virologia e Sierologia Specializzata - Lavazza Dr. Antonio - I 2 - UNIV MILANO Dipartimento di Patologia Animale, Igiene e Sanità Pubblica Veterinaria, Sezione di Anat - Grilli Dr. Guido - E RELO2004685CUNISVEZZ - Influence of weaning age and diet on productive performance, prevention of digestive diseases and welfare of the young rabbit - Toschi Dr. Ivan - UO - REGIONE - 2004 - 04/10/2004 0.00.00 - 31/01/2007 0.00.00 - 92817,00 EUR 1 - G1 - Reparto di Virologia e Sierologia Specializzata - Lavazza Dr. Antonio - I The aim of this study was to investigate the effect of age and diet at weaning on growth performances, caecal characteristics and development of potential pathogenetic microflora. The trial was carried out on 64 litters from 18 to 45 days of age comparing two weaning age (25 vs. 34 d) and two weaning diets (HF and LF) characterized, especially, by different energy, fat and starch concentration (HF: DE=11.5 MJ/kg, EE=6.270, Starch=8.770; LF: DE=10.1 MJ7kg DM, EE=3.1'1-, Starch=11.37x-). At 45 d, early weaning determined a significant reduction of growth (1219 vs 1282; P<0.01), although the solid feed intake resulted significantly higher, from 25 to 34 days of age, in early weaned rabbits (50.0 us 29.8 g/d; P<0.001). The age at weaning Pag. 23 di 300 31/08/2011 did not modify caecal traits, witb the exception of pH value, that was lower in rabbits early moved to the mothers (5.53 us 5.83; P<0,05). Independently by age of weaning, the administration of diet HF promoted growth performance in rabbits at 45 d (1280 vs 1222; P<0.01) Diet composition did not influence mortality rate at 34 days of age, while early weaning determined values significantly higher than those found in rabbits weaned later. The data of microbial analysis, carried out on 10 animals per diet (at 25 and 34 days of age), showed potential pathogenetic microflora development depended by the age of animal and was not affected by the composition of diets. ID nr. 3648 Circella E, Martella V, Bruni G, Lorusso E, Lavazza° A, Camarda A, Coronavirus-associated with an enteritis in a quail farm Ital J Anim Sci. - Vol. 6 n 3 ( 2007). - p 326-329. - 9 bib ref Impact factor: 0,172 An enteric syndrome was observed in quail (Coturnix coturnix) semi-intensively reared for restocking in Apulia southern Italy ). The birds showed depression, severe diarrhoea, dehydration and reduced growth. mortality occurred particularly in young birds. At necropsy the prominent lesion was enteritis. A coronavirus was detected by electron microscopy and reverse transcriptase-polymerase chain reaction in the faeces and in the intestinal content of the dead quails. The virus could not be cultivated in chicken embryos. By sequence analyses of a fragment (409 nucleotides) of region lb of the polymerase gene, the quail coronavirus displayed =93% nucleotide identity to avian coronaviruses (group 3 coronaviruses)—whereas by analysis of the Sl portion of the spike protein-encoding gene, the quail coronavirus displayed 16°% to 18% amino acid identity with infectious bronchitis virus. and 79% to 81% identity with turkey coronavirus. Altogether, the findings suggest the existence of a novel coronavirus genetically related to turkey coronavirus. ID nr. 3649 Martella V, Bànyai K, Lorusso E, Bellacicco AL, Decaro N, Camero M, Bozzo G, Moschidou P, Arista S, Pezzotti G, Lavazza° A, Buonavoglia C Prevalence of group C rotaviruses in weaning and post-weaning pigs with enteritis Vet Microbiol. - Vol. 123 ( 2007). - p 26-33. - 47 bib ref Impact factor: 2,073 Diarrheic fecal specimens collected from porcine herds were screened for the presence of group C rotaviruses using a reverse transcription-polymerase chain reaction (RT-PCR) assay. A total of 188 samples were tested and 54 were positive. When compiled these data with diagnostic results on group A rotaviruses and enteric caliciviruses we found that all but 5 group C rotavirus positive samples contained at least one additional virus. A subset of samples were subjected to nucleotide sequencing. The selected strains showed an unexpectedly wide range of nucleotide sequence heterogeneity (88.6-100%) to each other and to the reference porcine group C rotavirus strain, Cowden. The nucleotide sequence identity to the genuine bovine and human strains were, respectively, 86.8 and 87.2% or less. In conclusion, our study demonstrates that infection with group C rotavirus is frequent in Italian piggeries. The considerable rate of multiple infections requires further studies to investigate the pathogenic potential of group C rotaviruses in pigs, alone or in mixed infection, and raises challenges in the laboratory diagnosis of porcine enteric infections. ID nr. 3650 Martella V, Ciarlet M, Banyai K, Lorusso E, Arista S, Lavazza° A, Pezzotti G, Decaro N, Cavalli A, Lucente MS, Corrente M, Elia G, Camero M, Tempesta M, Buonavoglia C Identification of Group A Porcine Rotavirus Strains Bearing a Novel VP4 (P) Genotype in Italian Pag. 24 di 300 31/08/2011 Swine Herds J Clin Microbiol. - Vol. 45 no 2 ( 2007). - p 577-580. - 44 bib ref Impact factor: 3,445 The VP4 gene of a G5 Italian porcine rotavirus strain, 344/04-1, was nontypeable by PCR genotyping. Thc amino acid sequence of the full-length VP4 protein had low identity ((piu o meno)76.6%) with the homologous sequences of representative strains of the remaining P genotypes, providing evidente for a novel P genotype. ID nr. 3651 Monini M, Cappuccini F, Battista P, Falcone E, Lavazza° A, Ruggeri FM Molecular characterization of bovine rotavirus strains circulating in northern Italy, 2003-2005 Vet Microbiol. - Vol. 129 ( 2008). - p 384-389. - 28 bib ref Impact factor: 2,010 Project PRF2003307 - Genetic and antigenic diversity of rotaviruses – study of the evolutionary mechanisms and implications for diagnosis and vaccination - Gentile Dr. Mattia - UO - MINSAN - 2003 256800,00 EUR - 01/03/2004 0.00.00 - 31/10/2006 0.00.00 - 7 - G1 - Reparto di Virologia e Sierologia Specializzata - Lavazza Dr. Antonio - I A total of 232 stools collected from calves with rotavirus infection in herds located in northern Italy from 2003 to 2005 was investigated. Determination of the rotavirus G and P types was carried out using nested RT-PCR. G6 was the most prevalent genotype, accounting for 78.5% of samples, G10 accounted for 9.9% of samples and viruses of G8 type were found in 4.7% of samples. In 3% of samples, viruses were not classified due to concomitant infection with more G type strains, whereas viruses in 3.9% of samples could not be characterized with any of the G-specific primers used in this study. Most common P types were P[11] and P[5], accounting for 65.1% and 25%, respectively. In 2.6% of cases, samples reacted with multiple P-specific primers; no P[1] serotype was identified. The G6P[11] combination was predominant throughout the study period, i.e. 52.5% in 2003, 50% in 2004 and 40% in 2005. The incidence of G6P[5] increased from 13.1 % in 2003 to 27% in 2004 and 25.5% in 2005. The G10P[11] combination decreased markedly from 18% in 2003 to 2.6% in 2004, rising again to 7.3% in 2005. G8P[11] viruses were similarly present in 2003 (5%) and 2004 (4.3%), declining slightly in 2005 (1.8%). ID nr. 3652 Martella V, Bànyai K, Lorusso E, Decaro N, Bellacicco A, Desario C, Corrente M, Greco G, Moschidou P, Tempesta M, Arista S, Ciarlet M, Lavazza° A, Buonavoglia C Genetic heterogeneity in the VP7 of group C rotaviruses Virology. - Vol. 367 ( 2007). - p 358-366. - 61 bib ref Impact factor: 3,525 Evidence for a possible zoonotic role of group C rotaviruses (GCRVs) has been recently provided. To gain information on the genetic relationships between human and animal GCRVs, we sequenced theVP7 gene of 10 porcine strains detected during a large surveillance study from different outbreaks of gastroenteritis in piglets. Four GCRV strains were genetically related to the prototype GCRV porcine Cowden strain. A completely new VP7 genotype included 4 strains (344,04-7-like) that shared 92.5% to 97.0% aa identity to each other, but <83% to human GCRVs and <79% to other porcine and bovine GCRVs. A unique 4-aa insertion (SSSV or SSTI), within a variable region at die carboxy-terminus of VP7, represented a distinctive feature for these 4 unique strains. An additional strain, 134/04-1.8, was clearly different from all human and animal GCRVs (<851/t aa ìdentity) and likely accounts for a distinct VP7 genotype. The VP7 of a unique strain, 42/05-21, shared similar ranges of aa sequence identities with porcine and human strains (88.0- 90J% to porcine GCRVs and 85.2 -88.2% to human GCRVs). Plotting the VP7 gene of strain 42/05-21 against the VP7 of human and porcine strains revealed discontinuous evolution rates throughout the VP7 molecule, Pag. 25 di 300 31/08/2011 suggesting different mutational pressure or a remote intragenic recombination event. These findings provide the need for future epidemiological surveys and warrant studies to investigate the pathogenic potential of these novel GCRVs in pigs. ID nr. 3655 Frezza D, Giambra V, Chegdani F, Fontana C, Maccabiani° G, Losio° N, Faggionato° E, Chiappini B, Vaccari G, Von_Holst C, Lanni L, Saccares S, Ajmone-Marsan P Standard and Light-Cycler PCR methods for animal DNA species detection in animal feedstuffs Innov Food Sci Emerg Tech. - Vol. 9 ( 2008). - p 18-23. - 30 bib ref Impact factor: 1,713 Project PRC2001002 - Study and application of molecular methods for the identification of animal tissues in food and feed - Faggionato Dr.ssa Elena - Capofila - MINSAN - 2001 - 780279000,00 LIT 16/09/2002 0.00.00 - 15/09/2004 0.00.00 - 1 - I2 - Reparto Bromatologico - Faggionato Dr.ssa Elena - I 2 - N1 - Bologna - Fontana Dr.ssa Maria Cristina - I 3 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica Losio Dr.ssa Marina Nadia - I 4 - UNI PC - Ajmone Marsan Dr. Paolo - E 5 - UNI TOR VERGATA - Frezza Dr. Domenico - E In this work four species-specific primers and probes were designed and evaluated for the detection and quantification of bovine, ovine, swine and chicken mitochondrial DNA in feeds. PCR primers were optimized using conventional and Rea] Time PCR, to detect short species-specific sequences amplifiable from heat treated matcrial. Both methods confirmted the high specificity of the primers designed. Real time quantitative PCR assay allowed the detection of as fcw as 0.01 ng and 0.05 ng of ovine and bovine gcnomic DNA, respectively. Tbc detection limit for swine and chicken genomie DNA was 0.5 ng. Sensitivity levels observed in DNA extrated from meat samples proeessed according to E legislation were different compared to those in gnomic DNAs previously described. They resulted in swine 5 ig of MBM DNA, in chicken 25 ng, in ovine and bovine 50 ng. Wc confirmed the efficiency and specificity of primers in RT-PCR to detect 0.5% of bovine, ovine, swine and chicken MBM in contaminated feedstuffs. ID nr. 3698 Martinelli N°, Lombardi G° Investigation on the presence of pathogens in laboratory mice and rats of breeding and testing centers XI Congresso Nazionale SIDiLV : Parma, Centro Congressi, Comune di Parma 30 Settembre - 2 Ottobre 2009 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2009]. - p 33-34. - 3 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (11. : Parma : 30 Settembre - 2 Ottobre 2009) First author Martinelli Nicola In this report prevalence rates of mice and rats pathogens in laboratory animal are presented. In mice and rats the most detected infectious agent was M. pulmonis (43,5%) followed by mouse hepatitis virus (36,6%) in mice and by Theiler’s virus in rats. Although health status is very important in laboratory animals, several infectious agents are still circulating in mice and rats colony. ID nr. 3704 Pag. 26 di 300 31/08/2011 Bosi P, Sarli G, Casini L, De_Filippi S, Trevisi P, Mazzoni M, Merialdi° G The influence of fat protection of calcium formate on growth and intestinal defence in Escherichia coli K88-challenged weanling pigs Anim Feed Sci Tech. - Vol. 139 ( 2007). - p 170-185. - 38 bib ref Impact factor: 1,29 An experiment was conducted to test whether free or fat-protected dietary calcium formate improves the growth and health of weanling pigs that may or may not be susceptible to intestinal adhesion of enterotoxigenic Escherichia coli (ETEC), when orally challenged with ETEC. Sixty pigs, weaned at 21 days of age (day 0), were divided into three groups (20 pigs each), balanced for number, litter and live weight, and fed the same base diet but three different 30.5 g/kg supplementations: a control (CO-with dicalcium phosphate, calcium sulphate, lard and sepiolite); a free calcium formate (FF), with this additive, monosodium phosphate and lard; a fat-protected calcium formate (PF), with this additive and monosodium phosphate only. The final diets did not differ for total calcium and phosphorus content. The pigs, individually penned, were orally challenged with 1.5 ml of a 1010 CFU E. coli K88 suspension on day 2 and slaughtered on day 7 or 8. Data were analysed using analysis of variance with a three-factor design, including diet, block, sensitivity of intestinal villus to ETEC adhesion, and first level interactions. The factor diet never interacted with the others. Compared to the control diet, the formate supplementations improved growth (P<0.05), feed intake (P=0.062) and GT (gain:feed) ratio (P=0.063). Both forms of formate addition reduced the faecal score (P=0.062), days of darrhoea (P<0.05) and total E. coli faecal excretion (P<0.05) but not E. coli K88 faecal excretion, and increased villus height in the small intestine (P<0.05). The number of enterocytes and goblet cells in the ileum was not changed by formate supplementations. In saliva, total IgA activity tended to be reduced by acidifiers (P--O.067). The anti-K88 IgA in the saliva, the blood and the jejunum secretion, and the expression of the TNFet gene in the stomach and jejunum wall were not affected by the diet. The pH of the stomach, the duodenum and the ileum was not affected while the formate reduced the pH in the colon and the caecum. Fatprotected calcium formate did not improve the results obtained with free formate supplementation. Calcium formate has a growth-promoting effect in weanling pigs challenged with E. coli K88, independently of their susceptibility to the intestinal adhesion of this strain. Its action seems to be more related to a general control of the total E. coli rather than of E. coli K88. At the lame dietary concentration, no particular advantage comes from using the protected formate instead of the free additive. ID nr. 3706 Donati M, Di_Francesco A, Gennaro R, Benincasa M, Magnino° S, Pignanelli S, Shurdhi A, Moroni A, Mazzoni° C, Merialdi° G, Baldelli R, Cevenini R Sensitivity of Chlamydia suis to cathelicidin peptides Vet Microbiol. - Vol. 123 ( 2007). - p 269-273. - 17 bib ref Impact factor: 2,073 Nine Chlamydia suis isolates, obtained from pigs with conjunctivitis, were molecularly characterized by ompA sequeneing and their in vitro susceptibility to six cathelicidin peptides (SMAP-29, BAC-7, 13MAP-27, BMAP27, BMAP-28, PG-1, LL-37) determined in celi culture. SMAP-29 was the most active peptide, reducing the intracellular inclusion number by >50% at a concentration of 10 µg/ml (3 µM) in six of the nine isolates tested. Three molecularly identical isolates were insensitive at a concentration as high as 80 µg/ml (25 µM). Of the remaining cathelicidin peptides tested, BAC-7 and BMAP-27 were active against six C. suis isolates at a concentration of 80 µg/ml (25 and 26 µM, respectively). Cathelicidins LL-37 and PG-1 did not show any antichlamydial activity at 80 µg/rnL. ID nr. 3708 Trevisi P, Merialdi° G, Mazzoni M, Casini L, Tittarelli° C, De_Filippi S, Minieri L, Lalatta _Costerbosa G, Bosi° P Effect of dietary addition of thymol on growth, salivary and gastric function, immune response, and Pag. 27 di 300 31/08/2011 excretion of Salmonella enterica serovar Typhimurium, in weaning pigs challenged with this microbe strain Ital J Anim Sci. - Vol. 6 suppl 1 ( 2007). - p 374-376. - 5 bib ref Impact factor: 0,172 64 weaned pigs (24d-old), were fed a control diet or a control plus 1% thymol diet, with or without Salmonella typhimurium challenge. Thymol reduced feed intake but did not affect significantly the fina] body weight alter 29d of trial. Salmonella did not affect the performances. Body temperature was lower in the thymol group before, but also 1d after challenge, when Salmonella increased the values more in unsupplemented pigs. Fecal excretion of S. typhimurium in challenged pigs was not changed by the diet. The thymol group had a higher concentration of immunoglobulin (Ig) in serum before the challenge, but after there was an interaction between diet and challenge. The diet and the challenge did not affect saliva parameters, and ATPase gene expression in the fundic gastric mucosa. Thymol increased the number of parietal cells for 100 um depth of oxintic gland. In conclusion the important supplementation with thymol reduced the intake, but not performance in the medium period. Some factors of the gut barrier were positively influenced. Salmonella challenge did not reduce significantly the performance of the weaned piglet. ID nr. 3715 De_Jong JC, Smith DJ, Lapedes AS, Donatelli I, Campitelli L, Barigazzi° G, Van_Reeth K, Jones TC, Rimmelzwaan GF, Osterhaus ADME, Fouchier AM Antigenic and genetic evolution of swine influenza A (H3N2) viruses in Europe J Virol. - Vol. 81 no 8 ( 2007). - p 4315-4322. - 29 bib ref Impact factor: 5,341 Project PRC99007 - Epidemiological surveillance of influenza virus re-circulation in domestic and wild animals: an investigation into antigenic characterization of circulating strains in susceptible domestic animal species (pig, horse, avian species), intensification of surveillance in wild avian species and from rural flocks, new immunizing strategies for swine - Barigazzi Dr. Giuseppe - Capofila MINSAN - 1999 - 347643000,00 LIT - 01/03/2001 0.00.00 - 28/08/2003 0.00.00 - 1 - N5 Parma - Foni Dr.ssa Emanuela - I 2 - G1 - Reparto di Virologia e Sierologia Specializzata - Moreno Martin Dr.ssa Ana - I 3 - N3 - Forlì - Massi Dr.ssa Paola - I 4 - ISS - Donatelli Dr.ssa Isabella - E 5 - INFS - De Marco Dr.ssa Maria Alessandra - E 6 - ISS 2 - Castrucci Dr.ssa Maria Rita - E In che early 1970s, a human influenza A/Port Chalmers/1/73 (HRN2)-like virus colonized the European swine population. Analyses of swine influenza A (HRN2)-viruses isolated in the Netherlands and Belgium revealed that in che early 1990s, antigenic drift had occurred, away from A/1'ort Chalmers/1173, che strain commonly used in influenza vaccines for pigs. Here we show that Italian swine influenza A (H3N2) viruses displayed antigenic and genetic changes similar to those observed in Northern European viruses in che same period. We used antigenic cartography methods for quantitative analyses of the antigenic evolution of European swine H3N2 viruses and observed a clustered virus evolution as seen for human viruses. Although the antigenic drift of swine and human H3N2viruses has followed distinct evolutionary paths, potential clusterdifferentiating amino acid substitutions in the influenza virus surface protein hemagglutinin (FIA) were in part che smre. The antigenic evolution of swine viruses occurred A a rate approximately six times slower than che rate in human viruses, even though che rates of genetic evolut on of che 11A at the nueleotide and amino acid level vere, similar for human and swine H3N2 viruses. Continuous monitoring of antigenic changes is recommended to give a first indication as to whether vaccine strains may need updating. Our data suggest that humoral immunity in the population plays a smaller role in the evolutienary selection processes of swine H3N2 viruses than in human H3N2 viruses. ID nr. 3727 Pag. 28 di 300 31/08/2011 Berghoff J, Viezens J, Guptill L, Fabbi° F, Arvand M Bartonella henselae exists as a mosaic of different genetic variants in the infected host Microbiology - SGM. - Vol. 153 ( 2007). - p 2045-2051. - 33 bib ref Impact factor: 3,110 Bartonella henselae is a fastidious bacterium associated with infections in humans and cats. The mechanisms involved in the long-term survival of bartonellae despite vigorous host immune responses are poorly understood. Generation of genetic variants is a possible strategy to circumvent the host specific immune responses. The authors have recently demonstrated the coexistence of different genetic variants within the progeny of three primary B. henselae isolates from Berlin by PFGE analysis. Aims of the present study were to determine whether coexistence of different variants is a common feature of B. henselae isolates worldwide and whether the genetic variants originally emerged in vivo. Thirty-four primary isolates from different geographical regions were analysed by subjecting multiple single-colony-derived cultures to PFGE analysis. Up to three genetic variants were detected within 20 (58.8%) isolates, indicating that most primary isolates display a mosaic-like structure. The close relatedness of the genetic variants within an isolate was confirmed by multi-locus sequence typing. In contrast to the primary isolates, no genetic variants were detected within the progeny of 20 experimental clones generated in vitro from 20 primary isolates, suggesting that the variants were not induced in vitro during the procedure of PFGE analysis. Hence, the genetic variants within a primary isolate most likely originally emerged in vivo. Consideration of the mosaic structure of primary isolates is essential when interpreting typing studies on B. henselae. ID nr. 3728 Liu Z, Rank R, Kaltenboeck B, Magnino° S, Dean D, Burall L, Plaut RD, Read TD, Myers G, Bavoil PM Genomic plasticity of the rrn-nqrF intergenic segment in the Chlamydiaceae J Bacteriol. - Vol. 189 no 5 ( 2007). - p 2128-2132. - 24 bib ref Impact factor: 3,993 In ChIamydiaceae, the nucleotide sequence between the 5S rRNA gene and the gene for subunit F of the Nattransloeating NADH-quinone reductase (nqrF or dmpP) has varied lengths and gene contents. We analyzed this site in 45 ChIamydiaceae strains having diverse geographical and pathological origins and including members of all nine species. ID nr. 3736 Ferreri AJM, Dolcetti R, Magnino° S, Doglioni C, Cangi MG, Pecciarini L, Ghia P, Dagklis A, Pasini E, Vicari° N, Dognini GP, Resti AG, Ponzoni M A woman and her canary : a tale of chlamydiae and lymphomas J Natl Cancer Inst. - Vol. 99 n 18 ( 2007). - p 1418-1419. - 7 bib ref Impact factor: 15,271 ID nr. 3737 Ferrazzi V, Moreno Martin° A, Lelli° D, Gallazzi D, Grilli G Microbiological and serological monitoring in hooded crow (Corvus corone cornix) in the Region Lombardia, Italy Ital J Anim Sci. - Vol. 6 no 3 ( 2007). - p 309-316. - 14 bib ref Impact factor: 0,172 The health status of 276 hooded crows (Corvus corone corníx) from various provinces of Lombardy was Pag. 29 di 300 31/08/2011 monitored for three years. Bacteriological examination detected E. coli (76%), Campylobacter jejuni (17%), Salmonella typhimurium (11.6%), Yersinia spp. (6.5%), Clamydophila abortus and C. psittaci (2.6%); from six birds showing severe prostration Pasteurella multocida for Avian Influenza virus (AIV), West Nile virus (WNV) and only three samples were positive for Newcastle disease virus (NDV) but only at serology. ID nr. 3754 Circella E, Martella V, Lavazza° A, Lorusso E, Camarda A Coronavirus associated with an enteric syndrome in a quail farm: genomic characterization of a viral strain Obiet Docum Vet. - Vol. 29 no 3 ( 2008). - p 5-8. - 19 bib ref In this report, an enteric sindrome observed in a quail farm semi-intensively reared for hunting and restocking is described. The affected birds displayed depression, dehydration, reduced growth and severe diarrhoea. A coronavirus was detected by electron microscopy and RT-PCR in the intestinal content of the dead quail. The virus was not cultivable using chicken embryos. By sequence analyses of a fragment 1b of the polymerase gene, a 93% nucleotide identity of the quail coronavirus (QCoV) to the avian coronavirus (group 3) was observed. The sequence analyses of the S1 fragment of the S gene showed a 16%-18% amino acid identity of the QCoV wíth the infectious bronchitis virus and 79%-81% identity with turkey coronavirus (TCoV). Actually, we are not sure whether the QCoV is a TCoV variant or a new avian coronavirus. ID nr. 3755 Paoletti F, Luppi° A, Bosetti M, Di_Lecce R, Bonilauri° P, Cordioli° P Clinical and pathological investigation in an outbreak of PMWS (Postweaning Multisystemic Wasting Syndrome) and diagnostic methods comparison Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 495-503. - 15 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) Samples from 20 swine lymph nodes (ln. inguinales superficiales) with PMWS clinical signs were submitted for cytological, histological and real time PCR examination in order to establish a cytological grading. In this comparative study the cases were collected in three groups with mild, moderate and severe lymphoid microscopio lesions (group I, II, III respectively). High viral load was observed in all PMWS cases but the higher amount of virus was found in samples collected in the group III (final case). Cytological examination appeared in our experience as an important cornplementary diagnostic tool in the diagnosis of PMWS and usefully to determine the grade of lesions. ID nr. 3758 Sozzi° E, Luppi° A, Lelli° D, Moreno° A, Canelli° E, Cordioli° P, Brocchi° E, Bugnetti° M. Molecular identification of Porcine teschovirus and enterovirus by RT-CR Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 459-466. - 18 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) Project PRC2002007 - Improvement of SVD diagnosis: identification and neutralization of swine enteroviruses affecting SVD virus isolation in tissue cultures. - Brocchi Dr.ssa Emiliana - Capofila MINSAN - 2002 - 208749,00 EUR - 15/04/2004 0.00.00 - 31/12/2006 0.00.00 - 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I 2 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I Pag. 30 di 300 31/08/2011 3 - IZSVE - Nardelli Dr. Stefano - E 4 - ISS - Tollis Dr.ssa Maria - E First author Sozzi, Enrica Porcine enterovirus (PEV) and teschovirus (PTV), belonging to the family Picornaviridae, are ubiquitous and although the majority of infections are asymptomatic, they were related to polioencephalomyelitis, female reproductive disorders, enteric disease and pneumonia. In the present study a total of 24 Italian porcine entero-teschovirus isolates vere analysed by polymerase chain reaction. The assay tumed out to be a useful diagnostic tool for molecular identification of porcine teschovirus/enterovirus strains and for the study of molecular epidemiology and evolution of these viruses. ID nr. 3759 Lombardi° G, Pavoni° E, Faita° R, Losio° MN, D'Abrosca° F, Luppi° A, Gelmetti° D, Cordioli° P, Boni° P SPF pig experimental infection with swine positive hepatitis E virus (HEV) faeces Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 451-458. - 8 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) Project PRC2004008 - Preliminary assessment of the presence of hepatitis E infection in swine of Lombardy, set-up of an ELISA serological method and PCR - Lombardi Dr. Guerino - Solo MINSAN - 2004 - 50000,00 EUR - 01/07/2005 0.00.00 - 30/06/2007 0.00.00 - 1 - G3 - Reparto benessere animale, immunoprofilassi, allevamenti e sperim. Animale - Lombardi Dr. Guerino - I First author Lombardi, Guerino Hepatitis E virus has recently been recognized as having zoonotie potential and could be transmitted from pig to human. Pigs are identified as a potential animal reservoir and HEV is highly prevalent in the swine population around the world. In this study the presence of HEV was investigateti in 17 pig farms of Northern Italy (Lobardy), by RT-nested PCR on fresh stool samples. For the study 183 stool samples were collected and 28 samples resulted positive to HEV. RT-nested PCR and genotyping demonstrated that all viruses were closely related to different strains previously described and grouped iato the genotype 3. In the second part of this study, Rt-nested PCR positive feces were used to prepare the HEV inoculum for the oral experimental infections of four HEV-seronegative, three months SPF pigs. Other four, uninoculated pigs were housed in the saure pen containing the four inoculateti pigs previously described. Two pigs, who vere not inoculateti, served as negative control. The experimental design consisted of four oral inoculateti pigs, four uninoculated pigs used as direct-contact controls and two uninoculated pigs used as negative control and housed separately. Daily fecal swab and weekly blood sample, from each pig, avere tested for HEV RNA and anti-HEV antibodies respectively. ID nr. 3760 Lelli° D, Moreno° A.Sozzi° E, Luppi° A, Canelli° E, Brocchi° E, Cordioli° P Swine influenza viruses typing with monoclonal antybodies Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 445-450. - 6 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) Project RELO2005910SUINFL - Diagnostic and control strategies for respiratory diseases of swine, with emphasis on influenza virus infection and the epidemiological role of pigs with respect to avian influenza virus strains. - Alborali Dr. Loris - Capofila - REGIONE - 2005 - 65000,00 EUR 01/05/2005 0.00.00 - 01/03/2009 0.00.00 - 1 - M1 - Brescia - Alborali Dr. Loris - I 2 - ARAL - Crema - Battaglia Dr. Massimo - E First author Lelli, Davide Pag. 31 di 300 31/08/2011 Monoclonal antibodies specific for H1, H3, N1, N2 have been produced, characterized and used to develop sandwich-ELISA. This ELISA test was used to type 37 swine influenza viruses belonged to 14 H1N1, 16 H3N2 and 7 H1N2 subtypes. All the HINI strains, except one, exhibited strong reactivity in the H1-ELISA and NI-ELISA (Mabs 2C2 and 5B2 respectively) but, in contrast, only a H1N2 strain resulted positive in the H 1ELISA. The H1-ELISA, N1-ELISA and N2-ELISA developed, showed high specificity and sensitivity, enabled the identification of H1N1 and H3N2 swine influenza virus strains. In contrast, these tests showed a very low sensitivity in the identification of H1N2 strains. The H1N1 strain (5433/01) that reacted negative in the H1ELISA, showed a strong genetic relationship regarding the HA gene of H1N2 viruses. In contrast, the only H1N2 strain typed by the Hl-ELISA, showed a HA gene sequence closed related with the H1N1 HA genes, as described in a previously work. ID nr. 3761 Castellan A, Alborali° L, Zanoni° MG Intensive vaccination strategy against porcine Circovirus type2 (PCV2) in the control of a PCV2 disease (PCVD) outbreak in a farrow-to-weaning farm Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 419-423. - 3 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) First author Alborali, Giovanni Loris A diagnostic protocol was applied in an Italian farrow-to-weaning farr 1500 sows after the appearance of severe mortality and wasting in the weaners. A complicated outbreak of PCVD (Circovirus type 2 diseases) was identified. The effects an intensive vaccination with CIRCOVAC° (inactivated vaccine against PCV2) were studied. The vaccination was able to reduce dramatically mortality, the number of poors doers and the use of antibiotics; PDNS completely disappeared and growth performances returned back to optimal level. ID nr. 3762 Sarli G, Ostanello F, Morandi F, Fusa L, Bacci B, Nigrelli° A, Alborali° L, Dottori° M, Vezzoli° F, Barigazzi° G, Fiorentini° L, Sala V, Leotti G Diagnosis of PMWS in Italy : results of 18 months of activity Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 401-410. - 16 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) First author Nigrelli, Arrigo Daniele In 18 months of activity our team has tested 64 farms (altogether 229 pigs) for PMWS. PMWS was diagnosed on 48 farms, in 21 of which the total number of the examined subjects had lesions of PMWS, whereas in the remaining 27 only some animals showed PMWS. The protocol applied is based on the combination of the typical histological lesion in lymphoid and long tissues with the immunohistochemical assessment of PCV2. The test revealed stronger when applied to a group of animals than on a single pig. ID nr. 3763 Appino S, Alborali° L, Pregel P, Guarda F Mycoplasma spp. in arthritis in swine Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 389-392 - 8 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Pag. 32 di 300 31/08/2011 Terme (PR) : 13-14 marzo 2008) Porty-one synovial fluids have been collected from regularly slaughtered swine clinically affected by sierositis, arthritis - polyarthritis, in order to evaluate the presence of Mycoplasma spp. Macroscopical lesion were characterised by sub-acute to acute sierositis associated to an increase of synovial fluid and fibrin, but without signs of superficial erosions. A rnild proliferation of synovial membrane was present. ID nr. 3764 Calzolari° M, Leotti G, Bianchi M, Sarli G, Dottori° M Pseudo-myiasis caused by Ophira Aenescens (Diptera: muscidae) in swines Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 361-366 - 16 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) First author Calzolari, Mattia In March 2007 we analyzed pig's stool come from a farro in Imola (Bologna) containing Diptera larvae and we suspected that phenomenon could be an unusual myiasi. Our visit in the piggery confirmed the abundant presene of these larvae only in the room where the event was shown and the necroscopy on one of the .pigs showed the presence of the saure larvae into the digestive system. The laboratory identification of all sampled larvae confirmed that they were all the lame species, Ophyra aenescens. We explain the observed phenomenon by the pigs' ingestion of larvae in the environment, that were not digested and then discharged by the stool, originating a situatuation similar to a myiasi (called pseudo-miasi). ID nr. 3765 Merialdi° G, Bonilauri° P, Dottori° M, Nigrelli° A, Martelli P Monitoring respitory disease at slaughterhouse using lung and pleural lesions score and serology Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 319-325 - 13 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) First author Merialdi, Giuseppe Monitoring of lung lesions at slaughterhouse is an efficient tool to estimate the prevalence and severity of respiratory disease. Different methods have been described for the evaluation of Enzootic Pneumonia (EP) or lesions due to Actinobacillus pleuropneumotziae (App) at slaughterhouse. Lung and pleural lesions scoring in combination with serological data can provide a picture of the impact of respiratory disease at herd level. The results at slaughterhouse on 46 batches from different herds showed lesions referred to EP and to Chronic Pleuritis (CP) respective in 46.3 and 49.0% of the examined lungs. Among the respiratory pathogens, PRRSV and App revealed a 100% seroprevalence. ID nr. 3767 Rosetti M, Frasnelli° M, Fabbri F, Arienti C, Vannini I, Tesei A, Zoli W, Conti M Pro-apoptotic activity of cyclopentenone in cancer cells Anticancer Res. - Vol. 28 ( 2008). - p 315-320. - 22 bib ref Impact factor: 1,414 Studies on cyclopentenone prostaglandins (CPPGs), clavulones and other cyclopentenones have shown that these compounds have a significant anticancer activity mediated by their cyclopentenone (CP) chemical Pag. 33 di 300 31/08/2011 moiety. In this study the cytotoxicity against cancer cells of the model compound cyclopent-2-en-I-one (2CP) was investigateti. Being a highly water soluble small molecule, 2CP could be an ideal candidate to overcome pharmacological issues related to drug delivery and penetration. Its cytotoxic activity was tested on various melanoma and lung cancer cells. Interestingly, 2CP was both cytotoxic and pro-apoptotic, more pronounced on melanoma cells, at concentrations in the submicromolar range. On melanoma cells its mechanism of action was mediated by the mitochondria and the activation of caspase 3. ID nr. 3768 Terreni M, Merialdi° G, Bonilauri° P, Bonci° M, Tittarelli° C Longitudinal serological study on the natural infection from Lawsonia intracellularis, in different swine production system Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 301-310. -11 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) Ileitis is a worldwide disease responsible of relevant economic losses. Different diagnostic test are available for evaluating the presence and the diffusion pattern of Lawsonia intracellularis in farm. Objective of the study was to determine the presence and the evolution of seroprevalence, trough and ELISA test, in dfferent production systems. At the same time, has been evaluated the relationship between the presence of antibiotics used for strategic medication and infection. The seroprevalence increase progressively, from 60 days of age (18%) to 210 (78%). The production system impact on the beginning of the infection, that was earlier in one site vs multisite. Antibiotics didn't prevent infection and produced subpopulation of infected pigs as well as negative, receptive pigs.. ID nr. 3769 Rota_Nodari S, Candotti° P, Nassuato C, Ferro P Field trial to evaluate the efficacy of a feed medication program for sows with tylosin and sulphametazin (Tylan®Sulfa G100 premix) during pre-farrow and lactation periods Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 271-274. - 3 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) First author Rota_Nodari, Sara The study was performed in a farrow to weaning farm with 130 sows managed by a batch farrowing system in Northern Italy, with signs of rhinitis in a few fat pigs. The study included 6 consecutive groups of sows alternately assigned to either the control group (n=100) or the treatment group (n=101). During the 7 days preceding farrowing and throughout the lactation period (27 days), the sows of the treatment group (n=101) were given feed medication with 100 g/100 kg Tylan® Sulfa G100 Premix. The prophylactic treatment of the sows with Tylan 12 Sulfa GI00 Premix resulted positive effects on the litter, in terms of both the number of weaned piglets (10,43 vs 9,87) and weight at weaning (7,89 kg vs 7,29 kg). Treatment produced also positive effects on the sows, showing it possible to cut the costs of additional health treatment and, above all, showing an increase in the number of piglets born alive at the next delivery , that is 9,8 in the treatment group and 8,8 in the control group. ID nr. 3770 Ferro P, Tonon F, Bonilauri° P Evaluation of two different in feed medication therapeutic programs on attrition as a consequence of swine respiratory disease in nursery Pag. 34 di 300 31/08/2011 Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 267-270. - 3 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) After diagnosis of respiratory disease in the nursery sector of the farro where the study was performed, two groups of 110 pigs per group (PulmotilTM Group and Control Group) were treated with two different in feed medication therapeutic programs for the first 21 days after the weaning. The impact of the two different treatments on Attrition (culls, deaths and lightweights) was evaluated from weaning to the market place. The data about culls and deaths were recorded, all the pigs were individually weighted at 3 and 10 weeks of age, around 25-30 % of each group was weighted at 20 weeks of age, then the individua) carcass weight was collected. PulmotilTM Group showed mean weights higher than Control Group at 10 and 20 weeks of age, and also the mean carcass weights was higher in the PulmotilTM Group than in the Control Group. In conclusion the authors point out as the use of PulmotilTM, in this study, increased ammal health, with better performances from weaning to the market piace and produced more Full Value PigsTM. ID nr. 3771 Candotti° P, Dotti° S, Guana S, Rota_Nodari S, Amadori° M, Villa° R, Petrini S, Lombardi° G, Ferrari° M Susceptibility of pure bred large white and landrace pigs to experimental infection with PRRSV Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 253-256 - 3 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) Project PRC2002013 - Susceptibility of different pig breeds to PRRS - Candotti Dr. Paolo - Capofila MINSAN - 2002 - 139810,29 EUR - 15/02/2005 0.00.00 - 14/02/2009 0.00.00 - 1 - G3 - Reparto benessere animale, immunoprofilassi, allevamenti e sperim. Animale - Candotti Dr. Paolo - I 2 - CERSA - Giuffra Dr.ssa Elisabetta - E 3 - UNI MI - Domeneghini Dr.ssa Cinzia - E 4 - IBBA CNR - Boettcher Dr. Paul - E First author Candotti, Paolo In this study, twenty pigs, thirty day old of two different pure bred lines: fourteen Large White and fourteen Landrace, were experimentally infected with PRRS virus. The animals were investigated for thirty days by clinical, virological and à immunological tests, to compare the infection response differences between two pig lines. The collected data seem to evidence a more severe clinical sign in Large White aniimals than in Landrace and tris finding could be in relationship with different values of IL-10, IFI –(ypsilon) SC and IgM, that were detected in the two pure bred lines. ID nr. 3772 Sozzi° E, Luppi° A, Lelli° D, Moreno° A, Canelli° E, Cordioli° P, Lavazza° A, Brocchi° E Development and application of a PED coronavirus antigen detection enzyme-linked immunosorbent assay Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 247-252. - 9 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) First author Sozzi, Enrica Porcine epidemic diarrhoea (PED) is a contagious enteric disease of pigs caused by a coronavirus. This paper describes a monoclonal antibodies based enzymelinked immunosorbent assay (ELISA) development for the detection of porcine epidemic diarrhoea virus (PEDV) in fecal samples. This work demonstrates the value of the ELISA technique for detecting PEDV on field samples, in a comparative study with RT-PCR. Pag. 35 di 300 31/08/2011 Fecal samples were collected from pig farms located in Pianura Padana during 2006-2007. ID nr. 3773 Petrini S, Gavaudan S, Barocci S, Briscolini S, Sebastiani C, Mancini R, Paniccia P, Villa° R, Ferrari° M Isolation and characterization of porcine circovirus type 2 (PCV2) in wild boars in central Italy Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 239-245. - 8 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) Porcine circovirus type 2 (PCV2) was first identified in domestic swine. Most studies have indicated that PCV2 infects only swine but there is little information on porcids other than improved breeds of domestic swine. We show that PCV2 was identified in wild boars by gross and/or histological examinations, isolation, PCR and Real-Time PCR. The ORF2 of the isolated PCV2 had 95-97% homology with ORF2 of reference PCV2 isolates. These diagnostic data suggest that PCV2 can infect and cause disease in Sus scrofa subspecies other than swine. ID nr. 3774 Morandi F, Ostanello F, Fusaro L, Bacci B, Nigrelli° A, Alborali° L, Dottori° M, Vezzoli° F, Barigazzi° G, Fiorentini° L, Sala V, Leotti G, Sarli G Immunohistochemical investigation on swine proliferative and necrotizing pneumonia (PNP) in Italy : preliminar results Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 215-222. - 16 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) Proliferative and necrotizing pneumonia (PNP) is a particular form of interstitial pneumonia in weaning and post-weaning pigs characterized by hypertrophy and hyperplasia of type II pneurnocytes and presence of coagulative necrosis and granular debris within alveolar spaces. American and European studies suggest PRRSV and PCV2 as the probable causes of tbc disease. An immunohistochemical study was carried out on 24 PNP lungs to evaluate the role of PRRSV and PCV2 in PNP lesions in Italy. Results vere as follows: coinfection (PCV2 and PRRSV) in 7 PNP lungs, PRRSV only in 9, PCV2 only in 4, and neither of the two antigens was found in the remaining 4. These findings support the major role of PRRSV as cause of PNP in Italy, even if co-infection is characterized by more severe histological aspects. ID nr. 3775 Spaggiari° B, Gherpelli° Y, Bonilauri° P, Merialdi° G Development and preliminary application of a method for in vitro susceptibility testing of bacterial pathogens of swine origin versus essential oils Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 209-214. - 21 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) First author Spaggiari, Brunella A method is presented for testing in vitro susceptibility of different strains of 2 swine pathogens, Salmonella Typhimurium and Pasteurella inadtocidci, to carvacrol, a major component of oregano (Origanuni vulgare), thyme (Thyrnus vulgaris) and other plani essential oils. Carvacrol antimicrobial activity was evaluated by Pag. 36 di 300 31/08/2011 means of the minimum corncentration inhibiting bacterial growth (MIC). Ori all tested strains of P. nitiltocida carvacrol MIC was 50,0625%, while on tested strains of Salmonella Typhimurium carvacrol MIC varied from 0,25%, to 0,125%. These results confirm the marked in vitro antimicrobial activity of carvacrol.. ID nr. 3776 Bano L, Drigo I, Agnoletti F, Cocchi M, Ferro T, Bacchin C, Guolo A, Marcon B, Bonci° M, Merialdi° G Evaluation of bacteriological examination, ELISA toxins test and real-time PCR in the diagnosis of porcine Clostridium difficile associated disease Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 201-208. - 19 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) In order to investigate the cole of Clostridium difficile (CD) in swine enteritis outbrealcs, 79 faecal Samples, 30 intestinal contents and 12 rectal swabs were collected from subjects with a history of diarrhoea, in 31 different farms. Samples were stratified by growing phase (suckling, post-weaning, growing, fattening). Each sample was cultured in a selettive medium for CD. Isolates were identified by a cornmercial biochemical panel kit and by the specific CD Ihi gene PCR. Each isolate was tested by multiplex PCR to reveal the presente of tcdA and tcdB genes encoding for toxin A and toxin B respectively. The samples were screened for CD toxins A and B by using a commercia) ELISA. 26 intestina) contents and 73 faecal samples were tested by Real-Time PCR to enumerate CD CFU per g of sample. CD was recovered from 27 samples and the higher prevalente was evidenced in suckling pigs (43.5/0). Thirteen strains resulted positive for botti tcdA and tcdB genes, one strain was tcdA-/tcdB-, whereas 13 resulted tedA-/tcdB+. 28 samples tested positive by Real-Time PCR and the higher concentrations of CD (10(Allaseconda)-10(allaterza) UFC per g) was detected in samples resulted positive for botti toxins and cultural examinations. Toxin A and B were detected in 21 of the 27 samples positive for CD. This study point out the fact that CD is involved in outbreaks of enteric disease in swine, irrespective of age even if the higher prevalente was detected in suckling pigs. Furtherinore the enumeration of this enteric pathogen by Real-Time PCR coupled with ELISA toxin test provides a rapid and accurate tool for the diagnosis of clostridiosis supported by CD. ID nr. 3777 Nigrelli° AD, Alborali° L, Boldini° M, Fabbi° M, Vezzoli° E Salmonella enterica infection spreading in Northern Italy herds : subdivision model into the groups with different prevalence Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 195-200. - 11 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) Project PRC2005015 - Preliminary study for the development of a model for the surveillance of Salmonella enterica infection in fattened pigs and for the assessment of prevalence decrease over time - Nigrelli Dr. Arrigo - Solo - MINSAN - 2005 - 139780,00 EUR - 01/08/2006 0.00.00 - 30/09/2008 0.00.00 1 - M6 - Mantova - Nigrelli Dr. Arrigo - I 2 - M4 - Cremona - Boldini Dr. Massimo - I 3 - M5 - Lodi - Luini Dr. Mario - I 4 - M8 - Pavia - Fabbi Dr. Massimo - I 5 - M1 - Brescia - Alborali Dr. Loris - I First author Nigrelli, Arrigo Daniele The authors found, by two different Elisa-tests, an high spreading of Salmonella enterica infection in 109 pig hends of Northern Italy, with different characteristics (size, floor, type of production) either into the sows or into the fattening pigs. The Authors found, too, the possibility of subdividing herds into groups with different infection level, for measuring progressive reduction of Salmonella enterica spreceding the Authors didn't found Pag. 37 di 300 31/08/2011 an positive correlations between positive sera percentage and size, and floor or production type of herds tested. Longitudinal serologic studies confirmed the high seroprevalence in sows and fattening pigs. ID nr. 3778 Spaggiari° B, Gherpelli M, Magnino° S, Fallacara° F, Bonilauri° P, Dottori° M, Merialdi° G Case report of reproductive disorder associated with Chlamydophila abortus in swine Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 189-194. - 19 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) First author Spaggiari, Brunella The Authors report a case of reproductive disorder characterized by low fertility associated to vaginal discharges in a swine farrow-to-wean herd. Sows were mated with the semen of farm boars, some of which suffered from orchitis. After culling of sows with chronic reproductive failure and sampling of genital apparatus at slaughter, gross pathology bacteriology and biomolecular investigations were performed on reproductive organs. Semen samples from 6 farm boars were also tested. Chlamydophila abortus was evidenced from uteri in association with other bacterial agents. Chlamydophila spp. was isolated from boar semen. After an in feed medication with chlortetracycline fertility was restored to herd standard values. ID nr. 3779 Mazzoni C, Bonilauri° P, Borri E, Tonon F, Ponzio M Farrowing room efficiency improvement in a herd with two-week batch farrowing system : a field experience Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 177-187. - 12 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) This paper reports a field experience on a farm that achieved a considerable farrowing room efficiency improvement using a methodical work of farrowing synchronization and assistance. ID nr. 3780 Alborali° L, Abrami S, Zanardi° G, Avisani° D, Bellini° S Swine vescicular disease and bio-security measures : risk factors in 2006-2007 outbreaks in Lombardia Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 115-124. - 4 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) Tavola rotonda "La malattia vescicolare del suino : attualita' e prospettive in seguito all'emergenza 2006-2007" (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) First author Alborali, Giovanni Loris Authors describe the epidemiological features of the SVD outbreaks occurred in Lombardia during the 2006 epidemic, the main attention is focalized on the outbreaks of Brescia and Mantova provinces. The 2006 2007 epidemic were characterized by high diffusion of virus between herds. This is related to high concentration of swine herds in protection area where farms from 73 became 121 during period 1996-2007. In the second period of epidemic the reduce of area between herds were the main risk factor for introduction of SVD in 76 %of outbreaks. For the purpose of this paper the following information are taken into account: herds evolution in protection area, risk factors for the introduction and spread of the infection, weakness of the bio security Pag. 38 di 300 31/08/2011 measures applied. On the basis of the risk factorshighlighted in the outbreaks (movement of pigs, introduction of contmined haulier's vehicles for different purpose, proximity to other outbreaks, use of manure on agricoltural land fertilizer) bio security measures were realized to minimize the risk of SVD introduction and spread.. ID nr. 3781 Abrami S, Covi M, Cominardi P, Loris_Alborali° GL Outbreaks management : perspectives and critical points Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 103-113. - 8 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) Tavola rotonda "La malattia vescicolare del suino : attualita' e prospettive in seguito all'emergenza 2006-2007" (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) The legislative reference is the Decree of the President of the Republic 17 May 1996 n 362, implementation of the UE/119/92 laying down general measures for the control of certain animal diseases as well as some specific measures for the Swine Vesicular Disease (SWD) and the Emergency Plan/ Operative Manual drafted by the Vesicular Diseases Reference Centre of Brescia (CERVES). Measures adopted in protection and surveillance areas are complex, strict and onerous also from an administrative point of view. The situation becomes more critical as more new outbreaks of SVD break down and then time needed for controls and measures revocation gets greater. The management of the serological and clinical controls in the herds should be especially accurate. Particularly important is the informative flow both for Municipalities, Region and Ministry and for farmers, their Associations and the media. In order to eradicate outbreaks as quickly as possible should be available an operative protocol aimed to guarantee: that the spreading of the virus is as less as possible, the safety and health of workers, the animals protection during culling operations. Culling operations are complex and in case of big sized herds can lead to high contamination level of the environment, eventual risk source in high animal density areas. Other elements are cleaning and disinfections of the herds, proper sanitation of sewage and introduction in the herds of a correct number of guard animals. The last action, sensitive and onerous both administratively and technically, is the iter to get the indemnity for farmers. ID nr. 3782 Zanardi° G, Alborali° L, Bellini° S, Avisani° D Swine vesicular disease in Lombardy Region : comparison among the epidemics ocurred from 1998 to 2007 Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 91-102. - 8 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) Tavola rotonda "La malattia vescicolare del suino : attualita' e prospettive in seguito all'emergenza 2006-2007" (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) First author Zanardi, Giorgio In the last decade four epidemics of swine vesicular disease (SVD) occurred in Lombardy Region. The first one started at the end of October 1998 and finished at the end of February 1999. Eighteen outbreaks were notified in four provinces: 7 in Cremona, 6 in Mantova, 3 in Brescia and 2 in Bergamo. Following this epidemic Veterinary Service of Lombardy Region carried out all extraordinary plan aimed at eradicating the disease and achieve the free status from SVD. The second incursion of SVD virus occurred in the first half of 2000, involving three dealers, two in the province of Mantova, directly linked, and one in the province of Brescia. All the outbreaks were considered primary. In the third epidemic in 2002, during the routine surveillance activities, SVD was identified simultaneously in a breeding farm and in a dealer's premises of the Bergamo province. The epidemiological investigations in these two primary outbreaks allowed for the identification of 11 secondary outbreaks, 9 in Lombardy (all in Bergamo province) and 2 in the bordering Veneto and Emilia Romagna regions. All the secondary outbreaks were a cul de sac for the infection; in fact they did not give rise Pag. 39 di 300 31/08/2011 to secondary outbreaks. During the latest epidemic, started at November 2006 and finished at October 2007, 53 outbreaks were notified and about 148.464 animals were stamped out. Brescia was the province more involved in the spreading of the disease, with 32 outbreaks and the culling of 100.591 herds. No novelty was available on the mode of the disease transmission intra and inter-herds during the latest SVD epidemic. The high number of outbreaks and the restriction of the animal movement, due to the persistence of the SVD virus in a densely populated area. caused huge economic losses. This speech is aimed at comparing the characteristics of the different epidemics occurred in Lombardy Region in the light of the change of swine husbandry. The epidemiological remarks show the critical points about the prevention and the management of SVD in densely populated areas. ID nr. 3783 Bellini° S Swine vesicular disease in Italy : epidemiological situation and future control strategies Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 83-89. - 1 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) Tavola rotonda "La malattia vescicolare del suino : attualita' e prospettive in seguito all'emergenza 2006-2007" (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) First author Bellini, Silvia SVD has been persistently reported in Italy in the last decade, hence surveillance and eradication activities are in place. During 2006 - 2007 a recrudescenze of SVD was reported in Italy and outbreaks were identified in Northern regions, Lombardia resulted the one mainly affected. The presence of the disease in Northern Regions caused heavy economic losses in swine farming and meat processing industry. Surveillance and eradication activities for SVD have to be maintained in Italy to reach the disease free status for the whole Country. Anyhow, surveillance activities are all essential for trade purpose, in fact they are necessary to demonstrate that part of Country is already SVD-free. The presence of a disease, such as SVD, impairs the critical factors highlighted during the 2006 - 2007 epidemic have been taken into account to review the surveillance actions foreseen in the national surveillance and eradication plan. ID nr. 3785 Dottori° M Helminthiasis in swine Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 23-27. - 15 bib ref Giornata di studio "Endoparassitosi nella filiera produttiva del suino" : Marmirolo (MN) : 12 ottobre 2007) First author Dottori, Michele The most important helminthiasis of swine are reviewed, with focus of those who are more prevalent in Italian herds. The biological cycle, the epidemiology and the sanitary and economie impact on swine herds are considered. ID nr. 3786 Dekker A, Sammin D, Greiner M, Bergmann I, Paton D, Grazioli° S, De_Clercq K, Brocchi° E Use of continuous results to compare ELISAs for the detection of antibodies to non-structural proteins of foot-and-mouth disease virus Vaccine. - Vol. 26 ( 2008). - p 2723-2732. - 10 bib ref Impact factor: 3,377 Pag. 40 di 300 31/08/2011 Project SSPE-CT-2003-503603 - Improvement of foot and mouth disease control by ethically acceptable methots based on scientifically validated assays and new knowledge on FMD vaccines, including the impact of vaccination (FMD-IMPROCON). - De Clercq Dr. Kris - UO - CE - 2003 - 2399907,00 EUR - 01/01/2004 0.00.00 - 31/12/2008 0.00.00 - 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I Six tests for detection of antibodies against the non-structural proteíns. of foot and-mouth disease virus (FMDV) were compared at an international workshop in Brescia, Italy in 2004 on the basis of dichotomous test results. However, as results from att of these assays were also available on a continuous scale, validation was extended by calculatìng and subsequent[y analysing the receiver-operator characteristic (ROC) curves and likelihood ratios (LR) for each test method. For the purposes of these analyses, test results for a total of 1337 sera were selected from the Brescia workshop dataset, 237 sera that had been obtained from cattle exposed to FMDV and 1100 sera obtained from cattle that were not exposed to the virus; sera from "exposed" cattle were considered to be "true positives" and sera from "non exposed" cattle were considered to be "true negatives". Analysis of ROC curves showed that at specificities of both 99 and 99.5%, the IZS-Brescia and the Ceditest ELISA had significantly better detection rates in exposed cattle than the other ELISAs. The ROC analysis confirms the previous finding that the IZS-Brescia and the Ceditest ELISAs have both better detection rates in exposed cattle combined with a high specificity. The analysis of likelihood ratios provides information that may be very useful in the interpretation of test results, and a working example is presented to show how these likelihood ratios might be used in an objective approach to deciding the true infection status of surveyed populations. ID nr. 3788 Terzano C, Gamba° V, Moretti S, Galarini R, Dusi° G Development and validation of a confirmatory method for the determination of sulphonamides in milk by HPLC with diode array detection Residues of veterinary drugs in food : proceeding of the Euroresidue VI conference Egmond aan Zee, The Netherlands, 19-21 May, 2008 / edited by L.A. van Ginkel, A.A. Bergwerff organised under the auspices of the Federation of European Chemical Societies ( FECS ). Division of Food Chemistry. - [Bilthoven : National Institute of Public Health and the Enviroment (RIVM), Laboratorium for Residue Analysis, 2008, 2008]. - p 223-227 - 6 bib ref Euroresidue : conference on residues of veterinary drugs in food (6th : Egmond aan Zee (Netherlands) : 19-21 May, 2008) A simple multiresidue method for the determination of 7 sulphonamides residues (sulfadiazine, sulfapyridine, sulfamerazine, sulfamethazine, sulfamonomethoxine, sulfadimethoxine and sulfaquinoxaline) in milk samples was developed and validated. The drugs were extracted with a mixture chloroform/acetone and simply cleaned up on a action exchange solid phase extraction column. The analytes' determination was carried out using HPLC with UV-DAD detection at 270 nm. The procedure was validated as a quantitative confirmatory method according to the EU Decision 2002/657/EC. The developed method shows good linearity, specificity, precision, ruggedness and is able to confirm each sulphonamide residue above 20 pg kg-1. Decision limits around 110 µg kg-1 and recovery above 60% were obtained for all the analytes. The results of the validation process demonstrate that the method is suitable for application, as confirmatory method, in European Union statutory veterinary drug residue surveillance programmes. ID nr. 3789 Dusi° G, Bozzoni° E, Assini° W, Gasparini° M, Ferretti° E Development and validation of a confirmatory method for the determination of resorcyclic acid lactones in urine sample by liquid chromatography-tandem mass spectometry Residues of veterinary drugs in food : proceeding of the Euroresidue VI conference Egmond aan Zee, the Netherlands, 19-21 May, 2008 / [Bilthoven : National Institute of Public Health and the Enviroment (RIVM), Laboratorium for Residue Analysis, 2008, 2008]. - p 235-240 - 7 bib ref Pag. 41 di 300 31/08/2011 Euroresidue : conference on residues of veterinary drugs in food (6th : Egmond aan Zee (Netherlands) : 19-21 May, 2008) First author Dusi, Guglielmo The determination of zeranol, its metabolites taleranol and zearalanone is complicated by the occurrence of other resorcylic acid lactones (zearalenone, a- and ß-zearalenol). The aim of this study is a very quickly analytical procedure for the determination of all six resorcylic acid lactones. The urine sample was subjected to an enzymatic deconjugation and then simply cleaned up on an immunoaffinity column. The analytes were detected by liquid chromatography-negative ion electrospray tandem mass spectrometry using deuteriumlabelled internal standards. The method was validated as a quantitative confirmatory method according to EU Decision 2002/657/EC. The results obtained show good linearity, accuracy and ruggedness. The decision limits obtained were around 0.6 µg L-1 for all the analytes. ID nr. 3790 Galarini R, Fioroni L, Dusi° G About the decision limit for permitted substances Residues of veterinary drugs in food : proceeding of the Euroresidue VI conference Egmond aan Zee, the Netherlands, 19-21 May, 2008 / [Bilthoven : National Institute of Public Health and the Enviroment (RIVM), Laboratorium for Residue Analysis, 2008, 2008]. - p 271-274 - 11 bib ref Euroresidue : conference on residues of veterinary drugs in food (6th : Egmond aan Zee (Netherlands) : 19-21 May, 2008) This paper describes the problems came out in the practical application of the decision limit (CCa) in the analysis of substances with an established maximum residue limit (MRL). For confirmatory methods, CCa is a fundamental performance characteristic introduced by EU Decision 2002/657/EC. Since the decision limit takes automatically into account the measurement uncertainty, for permitted compounds, it lies always above the MRL. However, in some cases the permitted limit is fixes as a “sum MRL” (e.g. sulfonamides or tetracyclines) and this implies that, if in a sample two or more of the regulated molecules are found, the analyst should face the lack of criteria for sample judgement (compliance or not). In these particular circumstances, the uncertainty approach introduced by ISO, opportunely simplified taking into account only the intra-lab reproducibility sources of variability, could better help to investigate the samples compliance. Moreover the use of uncertainty estimation unify the criteria for samples judgment with other analytical fields (e.g. environmental contaminants) and avoids the misunderstandings generated by the use of the same term “decision limit” for both banned and permitted substances. ID nr. 3792 Luppi° A, Losio° MN, Lombardi° G, Faita° R, Pavoni° E, Cordioli° P, Boni° P Hepatis E virus in humans and animals Osservatorio. - Vol. 11 no 3 ( 2008). - p 4-7 First author Luppi, Andrea Hepatitis E virus (HEV) is an emerging pathogen belonging to a newly recognized family of RNA viruses (Hepeviridae). HEV is an important enterically transmitted human pathogen with a worldwide distribution. It can cause sporadic cases as well as large epidemics of acute hepatitis. Epidemics are primarily waterborne in areas where water supplies are contaminated with HEV of human origin. There is increasing evidence, however, that many animal species are infected with an antigenically similar virus. A recently isolated swine virus is the best candidate for causing a zoonotic form of hepatitis E. The virus is serologically cross-reactive with human HEV and genetically very similar, and the human and swine strains seem to be cross-infective. Very recent evidence has also shown that swine HEV, and possibly a deer strain of HEV, can be transmitted to humans by consumption of contaminated meat. In this review, we discuss the prevalence, pathogenicity, diagnosis and control of human HEV, swine HEV, the related avian HEV and HEV in other hosts and potential Pag. 42 di 300 31/08/2011 reservoirs. ID nr. 3795 Scordella G, Bresolin R, Rubini° S, Fedrizzi° G Food safety and quality requirements for importing aquaculture products in European Community : present and future World Aquaculture 2008 : May 19-23, 2008 Busan, Korea / World Aquaculture Society. - [s.l. : s.n, 2008]. - p 643 World Aquaculture : Busan, Korea : May 19-23, 2008) The European Union is collectively the largest importer of seafood in the world, with individual member states making up five of the world’s seven largest edible seafood importers. In 2002, the EU member states imported edible seafood valued at €24.4 billion. Over the past decade total EU seafood imports have almost doubled in value. The import rules for finfish and shellfish are harmonised, meaning that the same rules apply in all EU countries. The European Commission’s Directorate General for Health and Consumer Protection (DG SANCO) receives and distributes notifications to the food and feed inspection services of member state, as well as to other countries. Its rules for fish and shellfish products seek to guarantee that all imports fulfil the same standards as products from the EU Member States. The rather strict food safety rules and regulations in EU is a direct consequence of recent food scandals (BSE, Dioxin problem, Salmonella, Listeria and Cholera scares) that entered the minds of EU consumers as potential threats. Furthermore, in the past years, the number of alerts and notifications from the EU Rapid Alert and Safety for Food and Feed (RASFF) has risen significantly (from 698, in 1999, to 3024, in 2002). Imports of fishery products into the EU are subject to official certification, based on the recognition of the competent authority of the non-EU country by the European Commission. Public authorities must ensure credible inspections and controls throughout the production chain, which cover all relevant aspects of hygiene, public health and also animal health. The eligibility criteria are: 1. Exporting countries must have a competent authority which is responsible for official controls throughout the production chain. 2. Live fish, their eggs and gametes intended for breeding and live bivalve molluscs must fulfil the relevant animal health standards. 3. The national authorities must also guarantee that the relevant hygiene and public health requirements are met. 4. A control plan on heavy metals, contaminants, residues of pesticides and veterinary drugs must be in place to verify compliance with EU requirements. 5. Imports are only authorised from approved establishments, inspected by the competent authority of the exporting country and meet EU requirements. 6. Inspections by the Commission’s Food and Veterinary Office are necessary to confirm compliance with the above requirements. Because of high expectations regarding the safety and quality of their food, the food law of the EU implements the principle of quality management and process-oriented controls throughout the food chain - from the aquaculture farm to the consumer’s table. ID nr. 3796 Menotta° S, Fedrizzi° G, Macrì S, Scandurra S, Saggiorato M Results of avilamycin residues monitoring plans for the experimental use in Italy Proceedings of the 9th World rabbit congress : Verona (Italy) June 10-13, 2008 / editors Gerolamo Xiccato, Angela Trocino and Steven D. Lukefahr. - 1. ed. - Brescia : Fondazione Iniziative Zooprofilattiche e Zootecniche, 2008. - (Atti delle Giornate di Studio Fondazione Iniziative Zooprofilattiche e Zootecniche ; 72) p 401 World rabbit congress (9 : Verona (Italy) : June 10-13, 2008) First author Menotta, Simonetta Pag. 43 di 300 31/08/2011 The digestive disease is the main cause of mortality in industrial fattening rabbit farms. Recently, avilamycin has been experimentally used by rabbit producers in Italy as a new option to control digestive syndrome. This experimental use was exceptionally authorized by the Italian Health Ministry in order to reduce the losses due to Epizootic Rabbit Enteropathy (ERE) in the rabbit breeding. Although the ERE pathogenesis is not yet completely known in all its aspects, the presence of Clostridium perfringens has been reported as associated agent in most of cases. The objective avilamycin experimental use was to evaluate the efficacy of the drug in feed for the control of digestive signs associated with Clostridium spp. in rabbits at a dose of 5 mg avilamycin/kg body weight/day, equivalent to 60=120 g11000 kg of feed on the basis of age, body weight and feed consumption for all animals in the weaning phase. During the experimental use some different residues monitoring plans were performed by Italian health authorities and Elanco Animal Health with the aim to ensure public health on treating food-producing animals with an experimental therapy. According to the guidelines of the Italian Health Ministry an official avilamycin residues monitoring plan was conducted by Elanco during the last two years and other experimental plans were performed by regional authorities and foodstuff producers. An HPLCMS/MS method was developed by Elanco, performed and validated by the "Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna" according to European legislation (EEC/657/2002) and applied to monitor avilamycin residues in the different plans actuated in Italy. The Avilamycin was analyzed by hydrolysis to dichloroisoeverninic acid (DIA), the residual marker analyzed. The avilamycin linear range was from 50 to 250 gg/kg (approximately concentration of DIA from 10 to 50 pg/kg). Within laboratory data (reproducibility intra-laboratory) were from 11% to 17% for muscle and liver. Repeatability was included between 10% and 19% for both tissues. The mean recovery was 85% for muscle and 81% for liver. According to different monitoring plans, more than 250 samples of rabbit treated with avilamycin were collected and their tissues (muscles, livers or both tissues) were analyzed. The results obtained from these analyses demonstrate the very low risk due to residues and the high level of safety for avilamycin used in rabbit as food-producing animal. ID nr. 3796a Menotta° S, Fedrizzi° G, Macrì S, Scandurra S, Saggiorato M Results of avilamycin residues monitoring plans for the experimental use in Italy http://world-rabbit-science.com/WRSA-Proceedings/Congress-2008-Verona/Papers/Q-Menotta.pdf - ultimo accesso 23-02-2009. - Vol. 2008). - p 1393-1397. - 8 ref bib World rabbit congress (9th : Verona (Italy) : June 10-13, 2008) First author Menotta, Simonetta The digestive disease is the main cause of mortality in industrial fattening rabbit farms. Recently, avilamycin has been experimentally used by rabbit producers in Italy as a new option to control digestive syndrome. This experimental use was exceptionally authorized by the Italian Health Ministry in order to reduce the losses due to Epizootic Rabbit Enteropathy (ERE) in the rabbit breeding. Although the ERE pathogenesis is not yet completely known in all its aspects, the presence of Clostridium perfringens has been reported as associated agent in most of cases. The objective avilamycin experimental use was to evaluate the efficacy of the drug in feed for the control of digestive signs associated with Clostridium spp. in rabbits at a dose of 5 mg avilamycin/kg body weight/day, equivalent to 60=120 g11000 kg of feed on the basis of age, body weight and feed consumption for all animals in the weaning phase. During the experimental use some different residues monitoring plans were performed by Italian health authorities and Elanco Animal Health with the aim to ensure public health on treating food-producing animals with an experimental therapy. According to the guidelines of the Italian Health Ministry an official avilamycin residues monitoring plan was conducted by Elanco during the last two years and other experimental plans were performed by regional authorities and foodstuff producers. An HPLCMS/MS method was developed by Elanco, performed and validated by the "Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna" according to European legislation (EEC/657/2002) and applied to monitor avilamycin residues in the different plans actuated in Italy. The Avilamycin was analyzed by hydrolysis to dichloroisoeverninic acid (DIA), the residual marker analyzed. The avilamycin linear range was from 50 to 250 gg/kg (approximately concentration of DIA from 10 to 50 pg/kg). Within laboratory data (reproducibility intra-laboratory) were from 11% to 17% for muscle and liver. Repeatability was included between 10% and 19% for both tissues. The mean recovery was 85% for muscle and 81% for liver. According to different monitoring plans, more than 250 samples of rabbit treated with avilamycin were collected and their Pag. 44 di 300 31/08/2011 tissues (muscles, livers or both tissues) were analyzed. The results obtained from these analyses demonstrate the very low risk due to residues and the high level of safety for avilamycin used in rabbit as food-producing animal. ID nr. 3797a Rota_Nodari S, Lavazza° A, Candotti° P, Evaluation of rabbit welfare at stunning and slaughtering in a commercial abattoir http://world-rabbit-science.com/WRSA-Proceedings/Congress-2008-Verona/Papers/W-Rota.pdf - ultimo accesso 23/02/2009. - Vol. 2008). - p 1239-1243. - 9 rif bib World rabbit congress (9th : Verona (Italy) : June 10-13, 2008) A total of 1020 crossbreed rabbits were individually examined to evaluate their welfare at electric stunning and slaughtering in a commercial abattoir. Stunning (position of electrodes and repetition of current applications) and sticking (position, length and depth of the cut) procedures were checked. Rabbits were behaviourally monitored from current application to death. The stunning system was incorrectly applied one hundred and ten timer (10.8%). Three rabbits failed to be stunned and were still conscious at sticking. Eighteen rabbits recovered before the onset of death, as evidenced by the corneal reflex, and in a few cases vocalization (n=3) and head righting (n=1) were observed. Corneal reflex seemed to be the best indicator of recovery at the abattoir. ID nr. 3798 Archetti° L, Tittarelli° C, Cerioli° M, Brivio R, Grilli G, Lavazza° A Serum chemistry and hematology values in commercial rabbits: preliminary data from industrial farms in Northern Italy http://world-rabbit-science.com/WRSA-Proceedings/Congress-2008-Verona/Papers/W-Archetti.pdf - ultimo accesso 23-02-2009. - Vol. 2008). - p 1147-1151. - 14 ref bib World rabbit congress (9th : Verona (Italy) : June 10-13, 2008) Project RELO2003596CUNIBENE - Welfare of farmed rabbits: associated sanitary and production traits Lavazza Dr. Antonio - Capofila - REGIONE - 2003 - 149325,00 EUR - 01/10/2003 0.00.00 29/01/2007 0.00.00 - 1 - G1 - Reparto di Virologia e Sierologia Specializzata - Lavazza Dr. Antonio - I 2 - UNIV MILANO Dipartimento di Patologia Animale, Igiene e Sanità Pubblica Veterinaria, Sezione di Anat - Grilli Dr. Guido - E First author Archetti, Ivonne Laura The aim of this preliminary study was to establish reference normal ranges of hematological and biochemical parameters in rabbits. A total of 8 industrial farms, located in Brescia, Milano and Bergamo Provinces (Northern Italy), were monitored during a 4-year period (2004-2007). Farms showed some variability as regards size, management and production parameters. Blood samples, collected from post weaning (30-45 days old) and growing (57-65 days old) rabbits, as well as restocking females before pregnancy (nulliparous), breeders at first pregnancy (primiparous), lactating does and breeders at culling (multiparous), were delivered within three hours to the laboratory. The following analyses were performed on serum samples: alanine aminotransferase (ALT), aspartate aminotransferase (AST), urea, Phosphorus (P), creatine kinase (CK), lysozyme, lactate dehydrogeìiase (LDH) and creàtinine. Blood samples were tested for: white blood cells (WBC), neutrophils, lymphocytes, monocytes, eosinophils, basophils, red blood cells (RBC), platelets (PLT), hemoglobin (Hg), hematocrit (HCT), mean corpuscular hemoglobin (MCH), mean concentration of hemoglobin in the corpuscular volume (MCHC), mean corpuscular volume (MCV). Results indicate that hematological and biochemical data are similar to those described in laboratory rabbits. In particular, the age-dependent trend of values was in agreement with previous observations. However, in does, a lower level of hemoglobin and lymphocyte numbers and a higher number of neutrophils and monocytes was observed, probably due to intensive production and exploitation. On the whole, this may indicate chronic stress under seemingly normal Pag. 45 di 300 31/08/2011 clinical conditions. LDH and CK values particularly differed from those described for laboratory rabbits. High urea and creatinine values in lactating does could be traced back to concurrent E. cuniculi infection. ID nr. 3799 Lavazza° A, Cerioli° M, Martella V, Tittarelli° C, Grilli G, Brivio R, Buonavoglia C Rotavirus in diarrheic rabbits: prevalence and characterization of strains in italian farms Proceedings of the 9th World rabbit congress : Verona (Italy) June 10-13, 2008 / editors Gerolamo Xiccato, Angela Trocino and Steven D. Lukefahr. - 1. ed. - Brescia : Fondazione Iniziative Zooprofilattiche e Zootecniche, 2008. - (Atti delle Giornate di Studio Fondazione Iniziative Zooprofilattiche e Zootecniche ; 72) p 228 World rabbit congress (9 : Verona (Italy) : June 10-13, 2008) Project PRF2003307 - Genetic and antigenic diversity of rotaviruses – study of the evolutionary mechanisms and implications for diagnosis and vaccination - Gentile Dr. Mattia - UO - MINSAN - 2003 256800,00 EUR - 01/03/2004 0.00.00 - 31/10/2006 0.00.00 - 7 - G1 - Reparto di Virologia e Sierologia Specializzata - Lavazza Dr. Antonio - I First author Lavazza, Antonio The multifactorial rabbit enteropathy has a great importance in rabbit meat production for its economical impact. Stating the pathogenic role and importance as primary agent of rotavirus, the purposes was to estimate the prevalence of lapine rotavirus (LRV), identified by negative staining electron microscopy (nsEM), on samples from rabbits showing either a "generic" enteropathy or lesions_referable to mucoid enteropathy caecal impaction and then to relate their presence with the symptoms and lesions observed. During the 20022007, 243 samples taken mainly from rabbits showing catarrhal, haemorrhagic or necrotic entero-tiflitis, mucoid enteropathy and caecal impaction were examined. By nsEM, the presence of viral particles was observed in 45.3% of them; rotavirus was identified in 16.0%, coronavirus-like virus in 24.7%, parvovirus in 9.0% and enterovirus-like virus in 51% of the positive samples. In addition, adenovirus, calicivirus and reovirus were sporadically found and, in 29 cases, 2 or 3 different viruses were contemporarily observed in association in the same sample. Using the criteria for the classification of rotavirus strains based on the VP4 (P type) and VP7 (G type) genotyping, almost all the strains were characterized as P[22] G3 confirming the presence of the newly-recognized rotavirus P[22] VP4 allele in Italian rabbits. The availability of the results of microbiological and parasitological analysis allowed to correlate nsEM observations with the contemporary presence of others pathogenic agents such as rotavirus, enteropathogenic Escherichia coli (EPEC) and Staphyloccoccus aureus in suckling rabbits; EPEC, Cl. spiroforme and flagellate protozoa in the others. The pathogenic role and importance of rotavirus as primary aetiological agent rabbit enteritis are discussed. ID nr. 3799a Lavazza° A, Cerioli° M, Martella V, Tittarelli° C, Grilli G, Brivio R, Buonavoglia C Rotavirus in diarrheic rabbits: prevalence and characterization of strains in italian farms http://world-rabbit-science.com/WRSA-Proceedings/Congress-2008-Verona/Papers/P-Lavazza.pdf - ultimo accesso 23-02-2009. - Vol. 2008). - p 993-997. - 17 ref bib World rabbit congress (9th : Verona (Italy) : June 10-13, 2008) Project PRF2003307 - Genetic and antigenic diversity of rotaviruses – study of the evolutionary mechanisms and implications for diagnosis and vaccination - Gentile Dr. Mattia - UO - MINSAN - 2003 256800,00 EUR - 01/03/2004 0.00.00 - 31/10/2006 0.00.00 - 7 - G1 - Reparto di Virologia e Sierologia Specializzata - Lavazza Dr. Antonio - I First author Lavazza, Antonio The multifactorial rabbit enteropathy has a great importance in rabbit meat production for its economical impact. Stating the pathogenic role and importance as primary agent of rotavirus, the purposes was to estimate the prevalence of lapine rotavirus (LRV), identified by negative staining electron microscopy (nsEM), Pag. 46 di 300 31/08/2011 on samples from rabbits showing either a "generic" enteropathy or lesions_referable to mucoid enteropathycaecal impaction and then to relate their presence with the symptoms and lesions observed. During the 2002-2007, 243 samples taken mainly from rabbits showing catarrhal, haemorrhagic or necrotic entero-tiflitis, mucoid enteropathy and caecal impaction were examined. By nsEM, the presence of viral particles was observed in 45.3% of them; rotavirus was identified in 16.0%, coronavirus-like virus in 24.7%, parvovirus in 9.0% and enteffivirus-like virus in 51% of the positive samples. In addition, adenovirus, calicivirus and reovirus were sporadically found and, in 29 cases, 2 or 3 different viruses were contemporarily observed in association in the same sample. Using the criteria for the classification of rotavirus strains based on the VP4 (P type) and VP7 (G type) genotyping, almost all the strains were characterized as P[22] G3 confirming the presence of the newly-recognized rotavirus P[22] VP4 allele in Italian rabbits. The availability of the results of microbiological and parasitological analysis allowed to correlate nsEM observations with the contemporary presence of others pathogenic agents such as rotavirus, enteropathogenic Escherichia coli (EPEC) and Staphyloccoccus aureus in suckling rabbits; EPEC, Cl. spiroforme and flagellate protozoa in the others. The pathogenic role and importance of rotavirus as primary aetiological agent rabbit enteritis are discussed. ID nr. 3800 Cerioli° M, Brivio R, Grilli G, Tittarelli° C, Marasciulo V, Lavazza° A Search for key health and welfare indicators for meat rabbit production and definition of a score method of evaluation Proceedings of the 9th World rabbit congress : Verona (Italy) June 10-13, 2008 / editors, Gerolamo Xiccato, Angela Trocino and Steven D. Lukefahr. - 1 ed. - Brescia : Fondazione Iniziative Zooprofilattiche e Zootecniche, 2008. - (Atti delle Giornate di Studio Fondazione Iniziative Zooprofilattiche e Zootecniche ; 72) p 273 World rabbit congress (9th : Verona (Italy) : June 10-13, 2008) Project RELO2003596CUNIBENE - Welfare of farmed rabbits: associated sanitary and production traits Lavazza Dr. Antonio - Capofila - REGIONE - 2003 - 149325,00 EUR - 01/10/2003 0.00.00 29/01/2007 0.00.00 - 1 - G1 - Reparto di Virologia e Sierologia Specializzata - Lavazza Dr. Antonio - I 2 - UNIV MILANO Dipartimento di Patologia Animale, Igiene e Sanità Pubblica Veterinaria, Sezione di Anat - Grilli Dr. Guido - E First author Cerioli, Monica The aim of this study is to define parameters related to health and welfare of animals even in industrial farms with intensive husbandry. Therefore, we tried to increase the knowledge on rabbit welfare by the use of correct tools for monitoring the different aspects of rabbit industrial farming, in order to improve the efficieney of farms and the productive performances of animals. Our study is based firstly on the charaeterization of health, management, environmental and physiological parameters and, secondly, on the definition of protocols to assess welfare of rabbits. All the entered values are then utilized for a score system to establish health and welfare conditions in industrial farms. ID nr. 3800a Cerioli° M, Brivio R, Grilli G, Tittarelli° C, Marasciulo V, Lavazza° A Search for key health and welfare indicators for meat rabbit production and definition of a score method of evaluation http://world-rabbit-science.com/WRSA-Proceedings/Congress-2008-Verona/Papers/P-Cerioli.pdf - ultimo accesso 20-02-2009. - Vol. 2008). - p 915-919. - 6 bib ref World rabbit congress (9th : Verona (Italy) : June 10-13, 2008) Project RELO2003596CUNIBENE - Welfare of farmed rabbits: associated sanitary and production traits Lavazza Dr. Antonio - Capofila - REGIONE - 2003 - 149325,00 EUR - 01/10/2003 0.00.00 29/01/2007 0.00.00 - 1 - G1 - Reparto di Virologia e Sierologia Specializzata - Lavazza Dr. Pag. 47 di 300 31/08/2011 Antonio - I 2 - UNIV MILANO Dipartimento di Patologia Animale, Igiene e Sanità Pubblica Veterinaria, Sezione di Anat - Grilli Dr. Guido - E First author Cerioli, Monica The aim of this study is to define parameters related to health and welfare of animals even in industrial farms with intensive husbandry. Therefore, we tried to increase the knowledge on rabbit welfare by the use of correct tools for monitoring the different aspects of rabbit industrial farming, in order to improve the efficieney of farms and the productive performances of animals. Our study is based firstly on the charaeterization of health, management, environmental and physiological parameters and, secondly, on the definition of protocols to assess welfare of rabbits. All the entered values are then utilized for a score system to establish health and welfare conditions in industrial farms. ID nr. 3801 Lavazza° A, Capucci° L Viral infection of rabbits Proceedings of the 9th World rabbit congress : Verona (Italy) June 10-13, 2008 / editors Gerolamo Xiccato, Angela Trocino and Steven D. Lukefahr. - 1. ed. - Brescia : Fondazione Iniziative Zooprofilattiche e Zootecniche, 2008. - (Atti delle Giornate di Studio Fondazione Iniziative Zooprofilattiche e Zootecniche ; 72) p 247-267. - 87 bib ref World rabbit congress (9 : Verona (Italy) : June 10-13, 2008) First author Lavazza, Antonio The three most important viruses of rabbits include: Myxoma virus (MV), the poxvirus that causes Myxomatosis, the calicivirus (genus Lagovirus) of Rabbit Haemorrhagic Disease (RHDV), and Lapine Rotavirus (LRV), which is an enteric agent. There are some other viral agents in rabbits (parvovirus, coronavirus, adenovirus, calicivirus (genus Vesivirus), enterovirus-like, reovirus, herpesvirus and coronavirus) but both their occurrence and their pathological value are negligible. Myxomatosis was firstly introduced in Europe more than 50 years ago and still represents a current and real problem. Recent studies have been focused to determine the role and function of the over 100 genes of MV encoding structural and essential proteins; in particular the immunomodulatory MV (im-MV) proteins (virokines and viroreceptors, immune modulators and anti-apoptotic factor), involved in contrasting the host immune system response towards the MV infection. One of the main tools to control myxomatosis in endemic areas is use of the live attenuated vaccines that are able to induce traceable humoral immunity for a variable time even if the protection of rabbits from the infection is not fully guarantee. Therefore, thanks allo to the knowledge on the im-MV proteins, a new family of biotechnology deleted vaccines will soon be produced and made available in a few years. These should be more safe and able to induce a wider immunity and permit to apply the DIVA strategy i.e. to use serology to ascertain if the anti-MV antibodies detected in a rabbits originate by an infection or a vaccination. RHDV is a non-cultivable calicivirus that infects rabbits and causes an acute fatal hepatitis, firstly described in China in 1984. The first consistent antigenic variant called RHDVa, was identified in Italy and Germany in 1997. Nowadays it is present in most parts of Italy and its field prevalence has reached value over 50%. In Europe it has been reported between 1997 and 2004 in Germany, France, Malta and Hungary. Outside Europe, it was reported in Reunion Islands, USA and South America and, taking account of the RHDV genetic sequences deposited at the NCBI databank, its presence in China is also evident from 1985. More recently some other RHDV isolates presenting peculiar characteristics were identified. Based on their reactivity with MAbs these strains could be considered as further and separate steps of variation of the RHDVa, possibly classified as sub-variants. The detection of seropositivity for RHDV in the sera of healthy farmed and laboratory rabbits taken between 1975 and 1985, which is approximately ten years before the occurrence of the disease in Europe, has suggested the hypothesis of the existence of one or more "nonpathogenic" viral strains antigenically related to pathogenic RHDV. Rabbit Calicivirus (RCV), the first of these non-pathogenic RHDV-like viruses identified in healthy rabbits, was detected in Italy in 1996. It is avirulent, replicates in the intestine at a low titre and presents a 92% genomic identity with RHDV. The diffusion of RCV in different areas of Italy has been evaluated in five consecutive serological surveys during the period 19992008, throughout the determination at slaughtering of anti-RHD antibodies in non-vaccinated meat rabbits from RHDV-free commercial rabbitries. The results clearly show that antibodies reactive with RHDV are Pag. 48 di 300 31/08/2011 present in several rabbit populations: almost 30% of controlled farms and over 80% of animals. The definitive proofs that an active infection had occurred came from the detection of IgA and IgM as well as the identification of viral strains by using PCR on faeces. In addition, the existence of other non-pathogenic caliciviruses in wild rabbits was suggested by the serological surveys of rabbit populations in European countries (UK and France), Australia and New Zealand. Either the identification of RNA particles related to RHDV in rabbit sera collected since 1955 in Britain and the very recent isolation and identification of one of these viruses in Australia finally confirmed such hypothesis. Enteric diseases have an important role in the rabbit industry since they produce severe economic losses due to mortality, growth depression and worsening of conversion index. Among the different pathogens that could be found in rabbits suffering from enteropathy, viruses seem to have an important but not definitive role. Viruses and among others Lapine Rotavirus (LRV) particularly, should not be able to induce primary episodes of high gravity but, acting as mild pathogens, they have the capacity of became endemic. The role and importance of viruses as primary aetiological agent of rabbit enteritis are here discussed, by both reviewing the available literature and presenting the results of studies of prevalence of the viruses identified in rabbits with enteritis. That is to recognise the main features and pathogenic abilities of different viral agents and to try to attribute them an etiological role in enteric syndromes, relating their presence with pathologic lesions. ID nr. 3801a Lavazza° A, Capucci° L Viral infection of rabbits http://world-rabbit-science.com/WRSA-Proceedings/Congress-2008-Verona/Papers/P0-LavazzaCapucci.pdf - ultimo accesso 20-02-2009. - Vol. 2008). - p 879-893. - 87 bib ref World rabbit congress (9th : Verona (Italy) : June 10-13, 2008) First author Lavazza, Antonio The three most important viruses of rabbits include: Myxoma virus (MV), the poxvirus that causes Myxomatosis, the calicivirus (genus Lagovirus) of Rabbit Haemorrhagic Disease (RHDV), and Lapine Rotavirus (LRV), which is an enteric agent. There are some other viral agents in rabbits (parvovirus, coronavirus, adenovirus, calicivirus (genus Vesivirus), enterovirus-like, reovirus, herpesvirus and coronavirus) but both their occurrence and their pathological value are negligible. Myxomatosis was firstly introduced in Europe more than 50 years ago and still represents a current and real problem. Recent studies have been focused to determine the role and function of the over 100 genes of MV encoding structural and essential proteins; in particular the immunomodulatory MV (im-MV) proteins (virokines and viroreceptors, immune modulators and anti-apoptotic factor), involved in contrasting the host immune system response towards the MV infection. One of the main tools to control myxomatosis in endemic areas is use of the live attenuated vaccines that are able to induce traceable humoral immunity for a variable time even if the protection of rabbits from the infection is not fully guarantee. Therefore, thanks allo to the knowledge on the im-MV proteins, a new family of biotechnology deleted vaccines will soon be produced and made available in a few years. These should be more safe and able to induce a wider immunity and permit to apply the DIVA strategy i.e. to use serology to ascertain if the anti-MV antibodies detected in a rabbits originate by an infection or a vaccination. RHDV is a non-cultivable calicivirus that infects rabbits and causes an acute fatal hepatitis, firstly described in China in 1984. The first consistent antigenic variant called RHDVa, was identified in Italy and Germany in 1997. Nowadays it is present in most parts of Italy and its field prevalence has reached value over 50%. In Europe it has been reported between 1997 and 2004 in Germany, France, Malta and Hungary. Outside Europe, it was reported in Reunion Islands, USA and South America and, taking account of the RHDV genetic sequences deposited at the NCBI databank, its presence in China is also evident from 1985. More recently some other RHDV isolates presenting peculiar characteristics were identified. Based on their reactivity with MAbs these strains could be considered as further and separate steps of variation of the RHDVa, possibly classified as sub-variants. The detection of seropositivity for RHDV in the sera of healthy farmed and laboratory rabbits taken between 1975 and 1985, which is approximately ten years before the occurrence of the disease in Europe, has suggested the hypothesis of the existence of one or more "nonpathogenic" viral strains antigenically related to pathogenic RHDV. Rabbit Calicivirus (RCV), the first of these non-pathogenic RHDV-like viruses identified in healthy rabbits, was detected in Italy in 1996. It is avirulent, replicates in the intestine at a low titre and presents a 92% genomic identity with RHDV. The diffusion of RCV in different areas of Italy has been evaluated in five consecutive serological surveys during the period 19992008, throughout the determination at slaughtering of anti-RHD antibodies in non-vaccinated meat rabbits Pag. 49 di 300 31/08/2011 from RHDV-free commercial rabbitries. The results clearly show that antibodies reactive with RHDV are present in several rabbit populations: almost 30% of controlled farms and over 80% of animals. The definitive proofs that an active infection had occurred came from the detection of IgA and IgM as well as the identification of viral strains by using PCR on faeces. In addition, the existence of other non-pathogenic caliciviruses in wild rabbits was suggested by the serological surveys of rabbit populations in European countries (UK and France), Australia and New Zealand. Either the identification of RNA particles related to RHDV in rabbit sera collected since 1955 in Britain and the very recent isolation and identification of one of these viruses in Australia finally confirmed such hypothesis. Enteric diseases have an important role in the rabbit industry since they produce severe economic losses due to mortality, growth depression and worsening of conversion index. Among the different pathogens that could be found in rabbits suffering from enteropathy, viruses seem to have an important but not definitive role. Viruses and among others Lapine Rotavirus (LRV) particularly, should not be able to induce primary episodes of high gravity but, acting as mild pathogens, they have the capacity of became endemic. The role and importance of viruses as primary aetiological agent of rabbit enteritis are here discussed, by both reviewing the available literature and presenting the results of studies of prevalence of the viruses identified in rabbits with enteritis. That is to recognise the main features and pathogenic abilities of different viral agents and to try to attribute them an etiological role in enteric syndromes, relating their presence with pathologic lesions. ID nr. 3802 Angelini P, Macini P, Finarelli AC, Po C, Venturelli C, Bellini R, Dottori° M Chikungunya epidemic outbreak in Emilia-Romagna (Italy) during summer 2007 Parassitologia. - Vol. 50 no 1-2 ( 2008). - p 97-98. - 6 bib ref Congresso Nazionale della Societa' Italiana di Parassitologia (25. : Pisa : 18-21 giugno 2008) During summer 2007, an outbreak due to the loca) transmission of CHIKV by Aedes albopictus mosquitoes occurred moreover in Italy, Emilia-Romagna Region, in the areas of Ravenna, Forlì-Cesena, Rimini and Bologna cities.The originai outbreak developed in Castiglione di Cervia and Castiglione di Ravenna, two small villages divided by a river. The first case was recorded on August 9th the epidemic out-break then spread out, thus giving rise to smaller secondary outbreaks and further sporadic cases in the same area, for a total of 337 suspected cases, 217 of which confirmed by blood analysis. CHIKV has been isolated and characterized on both blood and mosquito samples. ID nr. 3804 Bertasi° B, Losio° MN, Finazzi° G, Tilola° M, Maccabiani° G, Boni° P Ribotyping applications in the field of epidemiological survey: identification and characterisation of Listeria monocytogenes strains Ind Aliment (Pinerolo). - Vol. 47 no 481 ( 2008). - p 626-630. - 7 bib ref Project RELO200589METADIS - Bio-technology for food safety: evaluation of products and process changes toward high-safety products. - Zani Sig. Diego - UO - REGIONE - 2005 - 1138790,05 EUR - 01/01/2005 0.00.00 - 27/06/2007 0.00.00 - 1 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I First author Bertasi, Barbara Listeria monocytogenes is on ubiquitous foodborne pathogen; some strains of this microorganism can cause listeriosis, it can become a serious disease in immunocompromised people. Genotypic characterisation methodis are use-ful to study pathogenicity/strains associotions, because traditional techniques are influenced by environmental factors insteod. Automotic ribotyping can be used to identify and characterise strains isolated from food, environmental samples and biological samples, to identify eventual correlations and to perform a more specific risk analysis. Pag. 50 di 300 31/08/2011 ID nr. 3806 Losi° CG, Ferrari° S, Sossi° E, Villa° R, Ferrari° M An alternative method to isoenzyme profile for cell line identification and interspecies crosscontaminations: cytochrome b PCR-RLFP analysis In Vitro Cell Dev Biol Anim. - Vol. 2008). - p . -27 bib ref Impact factor: 0,660 Project PRC2007011 - Development and improvement of cryoconservation procedures for cells used in regenerative medicine - Ferrari Dr.ssa Maura - Capofila - MINSAN - 2007 - 50000,00 EUR 01/09/2008 0.00.00 - 31/08/2010 0.00.00 - 1 - L1 - Reparto Substrati Cellulari - Ferrari Dr.ssa Maura - I 2 - Istituto di Tec.gie Biom.che CNR - Biunno Dr.ssa Ida - E First author Losi, Claretta_Gioia One of the major risks in cell culture laboratories is the misidentification and cross-contamination of cell lines. Several methods have been used to authenticate cell lines, including isoenzyme profiling, the test suggested by European Farmacopeia, which is performed at the Tissue Culture Centre in Brescia. However, this method displays several disadvantages, such as high variability and low reproducibility, and it is time consuming and requires high cell concentrations to be perfonned. Therefore, an alternative method has been developed to continn the specie of origin of 27 different animal cell cultures. A polymerase chain reaction (PCR)--restriction fragment length polymorphism (RFLP) assay was optimized, based on the use of a pair of primers that anneal to a portion of the cytochrome b gene in ali the species. The ampilification product was digested with a panel of six restriction enzymes, and the pattem derived was resolved on 3% high-resolution agarose gel. For 23 species, this protocol produced a unique restriction pattem, and the origin of these animal cells resulted to be confirmed by this analysis. Furthennore, results indicate that cytochrome b PCRRFLP was able to amplify target sequences using very low amounts of deoxyribonucleic acid (DNA). Its sensitivity in detecting interspecies, cross-contamination was compamble to that of isoenzyme analysis (contaminating DNA should represent at least 10% of the total DNA). For 4 of the 27 species (sheep, dog, Guinea pig, and Rhesus monkey) the observed pattem, even if highly reproducible, showed additional bands; for these species, specific PCR was also perfomed. ID nr. 3807 Sesso L, Losi° GC, Renzi S, Torre ML, Galdi A, Russo V, Vigo D, Ferrari° M Preliminary study of isolation, amplification and characterization of equine adipose derived mesenchymal stem cells Atti Soc Ital Sci Vet. - Vol. 62 ( 2008). - cdrom p 95-96. - 4 bib ref Convegno Nazionale della Societa' Italiana delle Scienze Veterinarie (SISVET) (62 : S. Benedetto del Tronto (AN) : 2008) First author Ferrari, Maura Mesenchymal stem cells (MSCs) have been isolated from a variety of tissues and tested for differentiation into different cell lineages. MSCs have been used experimentally and in limited numbers of clinical cases in the equine orthopaedic field. The aim of this study is to develop a protocol for the isolation, amplification and finally the characterization of equine adipose derived mesenchymal stem cells (ADSC). Fibroblastic-like cell coltures were obtained by the adipose tissue enzymatic digestion. These cells were able to grow, in differentiation medium, toward the adipogenic lineage. This study is the first step for a potential use of cell therapy in equine orthopaedic field, in particular for tendon re-construction. Further investigations will be conducted to better characterize equine ADSC. ID nr. 3808 Losio° MN, Lombardi° G, Luppi° A, Pavoni° E, Faita° R, Lavazza° A, Cordioli° P, Boni° P Pag. 51 di 300 31/08/2011 Detection and molecular identification of Hepatitis E virus (HEV) in swine faces 20th IPVS Internationl Pig Veterinary Society Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - V. 2. - cdrom p 11. - 2 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, South Africa : 22-26 June 2008) First author Losio, Marina Nadia not found. ID nr. 3809 Lombardi° G, Pavoni° E, Faita° R, Losio° MN, Luppi° A, Gelmetti° D, Cordioli° P, Boni° P Experimental infection of SPF pigs with hepatitis e virus (HEV) 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 12. - 2 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) Project PRC2004008 - Preliminary assessment of the presence of hepatitis E infection in swine of Lombardy, set-up of an ELISA serological method and PCR - Lombardi Dr. Guerino - Solo MINSAN - 2004 - 50000,00 EUR - 01/07/2005 0.00.00 - 30/06/2007 0.00.00 - 1 - G3 - Reparto benessere animale, immunoprofilassi, allevamenti e sperim. Animale - Lombardi Dr. Guerino - I First author Lombardi, Guerino not found. ID nr. 3810 Moreno_Martin° A, Barbieri° I, Sozzi° E, Luppi° A, Canelli° E, Foni° E, Alborali° L, Cordioli° P Genetic characterization of swine influenza H3N2 subtype in Itlay 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 25. - 4 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) Project RELO2005910SUINFL - Diagnostic and control strategies for respiratory diseases of swine, with emphasis on influenza virus infection and the epidemiological role of pigs with respect to avian influenza virus strains. - Alborali Dr. Loris - Capofila - REGIONE - 2005 - 65000,00 EUR 01/05/2005 0.00.00 - 01/03/2009 0.00.00 - 1 - M1 - Brescia - Alborali Dr. Loris - I 2 - ARAL - Crema - Battaglia Dr. Massimo - E First author Moreno_Martin, Ana not found. ID nr. 3811 Moreno_Martin° A, Barbieri° I, Sozzi° E, Luppi° A, Lelli° D, Lombardi° G, Zanoni° MG, Cordioli° P Novel swine influenza virus subtype H3N1 in Italy 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 26. - 6 bib ref Pag. 52 di 300 31/08/2011 International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) Project RELO2005910SUINFL - Diagnostic and control strategies for respiratory diseases of swine, with emphasis on influenza virus infection and the epidemiological role of pigs with respect to avian influenza virus strains. - Alborali Dr. Loris - Capofila - REGIONE - 2005 - 65000,00 EUR 01/05/2005 0.00.00 - 01/03/2009 0.00.00 - 1 - M1 - Brescia - Alborali Dr. Loris - I 2 - ARAL - Crema - Battaglia Dr. Massimo - E First author Moreno_Martin, Ana not found. ID nr. 3812 Kiriakis CS, Brown IH, Foni° E, Kuntz_Simon G, Moldonado J, Van_Reeth K Virological surveillance for swine influenza in Europe 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 30. - 3 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) Project ESNIP2 - "European surveillance network for influenza in pigs 2 (ESNIP 2). - Van Reet dr.ssa Kristien - UO - CE - 2005 - 300000,00 EUR - 01/01/2006 0.00.00 - 31/03/2009 0.00.00 - 4 - N5 - Parma - Foni Dr.ssa Emanuela - I not found. ID nr. 3813 Gavaudan S, Barocci S, Briscolini S, Mancini P, Morandi F, Paniccià M, Ferrari° M, Villa° R, Petrini S Characterization of Porcine Circovirus Type 2 (PCT2) in wild boars in central Italy 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 63. - 4 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) not found. ID nr. 3814 Candotti° P, Dotti° S, Guana S, Rota_Nodari S, Amadori° M, Villa° R, Petrini S, Lombardi° G, Ferrari° M Susceptibility of pure bred large white and landrace pigs to experimental infection with porcine respiratory and reproductive virus (PRRSV) 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 122. - 3 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) Project PRC2002013 - Susceptibility of different pig breeds to PRRS - Candotti Dr. Paolo - Capofila MINSAN - 2002 - 139810,29 EUR - 15/02/2005 0.00.00 - 14/02/2009 0.00.00 - 1 - G3 - Reparto benessere animale, immunoprofilassi, allevamenti e sperim. Animale - Candotti Dr. Paolo - I 2 - CERSA - Giuffra Dr.ssa Elisabetta - E 3 - UNI MI - Domeneghini Dr.ssa Cinzia - E 4 - IBBA CNR - Boettcher Dr. Paul - E Pag. 53 di 300 31/08/2011 First author Candotti, Paolo In this study, twenty pigs, thirty day old of two different pure bred lines: fourteen Large White and fourteen Landrace, were experimentally infected with PRRS virus. The animals were investigated for thirty days by clinical, virological and à immunological tests, to compare the infection response differences between two pig lines. The collected data seem to evidence a more severe clinical sign in Large White aniimals than in Landrace and tris finding could be in relationship with different values of IL-10, IFI –(ypsilon) SC and IgM, that were detected in the two pure bred lines. ID nr. 3815 Candotti° P, Dotti° S, Amadori° M, Villa° R, Lombardi° G, Rota_Nodari S, Ferrari° M Experimental infection of pure bred landrace pigs with porcine respiratory and reproductive virus (PRRSV) : clinical and laboratory findings 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 123. - 3 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) Project PRC2002013 - Susceptibility of different pig breeds to PRRS - Candotti Dr. Paolo - Capofila MINSAN - 2002 - 139810,29 EUR - 15/02/2005 0.00.00 - 14/02/2009 0.00.00 - 1 - G3 - Reparto benessere animale, immunoprofilassi, allevamenti e sperim. Animale - Candotti Dr. Paolo - I 2 - CERSA - Giuffra Dr.ssa Elisabetta - E 3 - UNI MI - Domeneghini Dr.ssa Cinzia - E 4 - IBBA CNR - Boettcher Dr. Paul - E First author Candotti, Paolo not found. ID nr. 3816 Sandri G, Pesente P, Bittesnik S, Giovanardi D, Ferrari° M Real time RT-PCR : a very sensitive diagnostic tool to detect low positives in a PRRS eradication programme 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 141. - 4 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) not found. ID nr. 3817 Lavazza° A, Tittarelli° C, Cerioli° M, Luppi° A, Alborali° G, Cordioli° P Electronmicroscopic detection of viral agents in diarrhoeic pigs during the period 2002-2007 in Northern Italy 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 180. - 3 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) First author Lavazza, Antonio Enteric viral diseases are important economic problems affecting pig production. The aim of this study is to Pag. 54 di 300 31/08/2011 report the data of identification by IEM of viral agents in diarrheic pigs during the period 2002-2007 in Northern Italy, by using both hyperimmune and convalescent sera. This study shows that IEM could be very useful since they permit to detect not cultivable virions and multiple viral infections. Indeed it gives a good diagnostic indication in a very short time (few hours) and it valuable indication for further investigation. ID nr. 3818 Morandi F, Ostanello F, Fusaro L, Bacci B, Nigrelli° A, Alborali° L, Dottori° M, Vezzoli° F, Barigazzi° G, Fiorentini° L, Sala V, Leotti G, Joisel F, Sarli G Immunohistochemical investigation on proliferative and necrotizing pneumonia (PNP) in Italy: preliminary results 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 181. - 9 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) not found. ID nr. 3819 Martinez E, Maldonado J, Barigazzi° G, Riera P Ambiguous serotype identification of biotype 2 Actinobacillus pleuropneumonie 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 232. - 3 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) not found. ID nr. 3820 Luppi° A, Bonilauri° P, Di_Lecce R, Paoletti F, Bosetti M, Cordioli° P Clinical and pathological investigation in an outbreak of PMWS and diagnostic methods comparison 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 49. - 3 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) First author Luppi, Andrea The aim of this study is to establish the grading of lymphoid lesions, after a cytological, histological and real time PCR examination in order to evaluate the reliability of the cytology in PMWS diagnosis. In conclusion, in our experience, cytological examination may be considered an important complementary diagnostic tool for the diagnosis of PMWS. ID nr. 3821 Magistrali C, Catanossi M, Marenzoni ML, Sensi M, Crotti S, Valente C, Merialdi° G, Maresca C Agreement between different diagnostic tests for Brachyspira pilosicoli and Brachyspira hyodysenteriae infections in swine Pag. 55 di 300 31/08/2011 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 248. - 4 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) not found. ID nr. 3822 Martelli P, Merialdi° G, Bonilauri° P, Bertacchini F, Greatti S, Van_Groenland GJ Elimination of PRRSV, Micoplasma hyopneumoniae, Actinobacillus pleuropneumoniae by segregated medicated early weaning 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 365. - 1 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) not found. ID nr. 3823 Merialdi° G, Bonilauri° P, Dottori° M, Nigrelli° A, Martelli P Monitoring respiratory disease at slaughterhouse using lung and pleural lesions score and serology 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 380. - 1 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) First author Merialdi, Giuseppe not found. ID nr. 3824 Corradi A, Jottini S, Lavazza° A, Cantoni AM Skin papillomatosis in piglets 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 547. - 4 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) Papillomatosis is a rare benign tumor of papovaviral origin, self-limitating and transmissible, that affects genitalia and/or skin in pig and that is rarely described. The occurrence of papillomatosis in two piglets is reported and histological and immuno-histochemical lesions are described. ID nr. 3825 Nigrelli° A, Rosignoli° C, Faccini° S Gross pathology and pathogens in weaned piglets in italian swine farms (years 2004-2005) 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 560. - 9 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) Pag. 56 di 300 31/08/2011 Project PRC2005015 - Preliminary study for the development of a model for the surveillance of Salmonella enterica infection in fattened pigs and for the assessment of prevalence decrease over time - Nigrelli Dr. Arrigo - Solo - MINSAN - 2005 - 139780,00 EUR - 01/08/2006 0.00.00 - 30/09/2008 0.00.00 1 - M6 - Mantova - Nigrelli Dr. Arrigo - I 2 - M4 - Cremona - Boldini Dr. Massimo - I 3 - M5 - Lodi - Luini Dr. Mario - I 4 - M8 - Pavia - Fabbi Dr. Massimo - I 5 - M1 - Brescia - Alborali Dr. Loris - I First author Nigrelli, Arrigo Daniele not found. ID nr. 3826 Di_Bartolo I, Martelli F, Toma S, Inglese N, Caprioli A, Ruggeri FM, Lelli° D, Bonci° M, Ostanello F Molecular characterisation and phylogenesis of swine hepatitis E virus (HEV) strains identified in Italy 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 2. - 5 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) ID nr. 3827 Martelli F, Toma S, Di_Bartolo I, Inglese N, Caprioli A, Ruggeri FM, Lelli° D, Bonci° M, Ostanello F Epidemiology of hepatitis E virus (HEV) strains identified in Italian pigs affected by different pathological conditions 20th IPVS Internationl Pig Veterinary Science Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - cdrom p 5. - 7 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, (South Africa) : 22-26 June 2008) not found. ID nr. 3828 Sarli G, Ostanello F, Morandi F, Fusaro L, Bacci B, Nigrelli° A, Alborali° L, Dottori° M, Vezzoli° F, Barigazzi° G, Fiorentini° L, Sala V, Leotti G Diagnosis of PMWS in Italy Large Anim Rev. - Vol. 14 no 3 ( 2008). - p 119-126. - 21 bib ref First author Nigrelli, Arrigo Daniele From the beginning of October 2006 to January 31' 2008, in the context of a work sponsored by Merial Italia, a diagnostic pathway has been developed for the study of post-weaning multisystemic wasting syndrome (PMWS) of pigs. Superficial inguinal and bronchial lymph nodes, ileum, tonsil and lung from 3 to 5 subjects (229 pigs belonging to 64 farms from North and Centre Italy) were collected. The samples were valued by histological and immunohistochemical (IHC) assays for porcine circovirus-2 (PCV2). The diagnosis confirmed PMWS in those cases with inclusion bodies or where the presence of a positive IHC stain was contextual to the lesions indicative of PMWS in the lymphoid tissue (depletion and/or granulomas) and/or lung (interstitial pneumonia). In the other cases the samples were considered PCV2 infected when PCV2-positive cells were present without PMWS lesions; negative in the absence of PCV2 infection and PMWS lesions. PMWS was Pag. 57 di 300 31/08/2011 diagnosed on 48 farms; 21 where the total number of examined subjects had a conclusive diagnosis of PMWS, whereas the diagnosis could be considered conclusive for PMWS only for some animals on the remaining 27. The protocol proved more reliable when appled to a group of animals than to a single pig. ID nr. 3829 Bacci B, Morandi F, Ostanello F, Alborali° L, Sarli G Diagnosis of proliferative enteropathy by Lawsonia intracellularis Large Anim Rev. - Vol. 14 no 3 ( 2008). - p 115-118. - 21 bib ref Proliferative enteropathy (PE) is a common intestinal disease of pigs caused by Lawsonia intracellularis, an obligate intracellular bacterium. The disease includes a group of acute and chronic conditions with a common pathological change characterized by a thickening of the mucosa in the small intestine and colon. Histologically the affected tissues show marked proliferation of immature epithelial cells of intestin al crypts. The proliferating cells invariably contain numerous intracytoplasmic bacteria. Diagnostic tools have improved overall detection and early onset of PE in pigs, include various serological and molecular-based assays. Histological tests and immunohistochemistry continue to be the gold standard for the post mortem diagnosis of the disease. ID nr. 3830 Bellini° S, Bugnetti° M, Grazioli° S, Brocchi° E Swine Vesicular Disease (SVD): disease situation, epidemiology, diagnosis, prevention and control measures Workshop Epizone "Research in swine viral disease "Building Bridges" : 7-9 July 2008, Shanghai / [s.n. : s. n., 2008]. - 53 p. Workshop Epizone : Shanghai : 7-9 July 2008) Project Epizone - "Network of excellence for epizootic disease diagnosis and control - "EPIZONE". - Van Rijn dr. Piet - UO - CE - 2005 - 14000000,00 EUR - 01/06/2006 0.00.00 - 31/05/2011 0.00.00 17 - U3 - REPARTO AGENTI AD ALTA DIFFUSIONE E BIOTECNOLOGIE - Bellini Dr.ssa Silvia I First author Bellini, Silvia SVD was first observed in Italy in 1966, when it was clinically recognised as foot-and-mouth disease (FMD). Despite clinical signs, bio - chemical properties of the virus showed that it differed from FMD, in fact, SVDV was classified as an Enterovirus within the Picornaviridae family. SVDV causes a vesicular diseasè in pigs but does not affect ruminants. In Europe, SVD affected Netherlands, Belgium, Spain, Portugal and Italy in the early "90"s. Since then only Italy and Portugal have reported outbreaks. The last reported case of SVD from the Far East was in Taiwan in 1999. SVDV is extremely resistant in the environment and to normal disinfectants, its stability in the environment is a feature of major importance in the epidemiology and control of the disease. Direct contact of susceptible animals with infected pigs or their excretions is usually necessary for disease transmission. SVD has a limited tendency to diffuse, even within infected premises, it is not transmitted by the airborne route, spread from one pen to an other may not happen in absence of movement of infected pigs or contaminated material. Swill feeding has been considered a risk for the spread of SVD. SVD diagnostic procedures are lay down at Community level in Commission Decision 2000/428/EC. Currently, very sensitive and specific tests are available for SVD diagnosis and for the differentiation with FMD. Control measures are established in EU by Council Directive 92/119/EEC and are activated on the basis of clinical suspicion, even though experience from the field indicates that clinical severity of SVD appears to have decreased and sub clinical infection is now more common than clinical form. ID nr. 3831 Pag. 58 di 300 31/08/2011 Varisco° G, Bertocchi° L, Contessi N, Tranquillo° M, Bolzoni° G Bulk milk tank Staphylococcus aureus UCF count as predictive datum for bovine herd's infection level Hung Vet J. - Vol. 130 Suppl 2 ( 2008). - p 62 (Poster 587) Jubilee World Buiatrics Congress (25. : Budapest (Hungary) : July 6-11, 2008) First author Varisco, Giorgio Aim of this work is to verify the predictivity of bulk milk tank (BMT) analysis as simple tool for epidemiological surveillance system on herd's Staphylococcus aureus infection level. The comparison between BMT analysis results and single cow milk (SCM) analysis results was investigated to verify the relationship between BMT Staph. aureus UFC value and dairy herds infection rate. During 2005, 47.208 cow milk samples were analysed (7.166 positive, 38.530 negative and 1.512 to much polluted) of 31 dairy herds (approximately 4.000 cows were checked). Staph. aureus count in BMT (UFC) was found to decrease during time, due to dairy Staph. aureus infection rate red at cow level. Statistical analysis shows that within herds the prevalence is 1.28 grater (exp 0.25) every one UFC log unit (p<0.001). UFC variable did not show norma) distribution therefore it was been transformed in log. the mode) allow to calculate odds log for an infected herd. a) log (odds) = 2,829 + 0,25 * (ufc) To obtain prevalence value the following formula is to be used: b) Prevalence= Odds11+odds where odds value is obtained using natural value formula a) result Ex: BMT results is 3UFC (Staph. aureus) Log(odds)= -2.829+025*(3)= -2.079natural vale: exp.079)= 0.1250 prevalence= 0.12501(1+0.1250)= 0.107 (10.7%) In conclusion: results obteined confirm the significative statistical relationship between UFC, in log, and cows' infection rate; BMT analysis is a valid tool to evaluate dairy herds infection prevalence; this mode] is unable to describe all the prevalence variability. Although this high statistical relationship between UFC log and prevalence, the mode) predictivity performance is to improve and to use Staph. aureus UFC count in BMT in routine UFC as prediction of cow's infection level within herds further study have to be run. ID nr. 3832 Nicholas R, Raedelli E, Luini° M, Loria G, Ayling R, Scanziani E Prevalence and control of Mycoplasma bovis in Europe XXV Jubilee World Buiatrics Congress : July 6-11, 2008 Budapest (Hungary) : Oral and poster abstracts / [s.n. : s. n., 2008]. - 206 Jubilee World Buiatrics Congress (XXV : Budapest (Hungary) : July 6-11, 2008) Mycoplasma bovis is a major cause of disease in both growing and adult cattle. Pneumonia, mastitis, arthritis and otitis have all been associated with mycoplasma infection, none of which respond well to chemotherapy. In the UK serological screening of pneumonic herds indicates that M. bovis is associated with approximately a quarter of ali outbreaks in calves; this mycoplasma is also the most commonly isolated pathogen from pneumonic lungs. Since its first introduction into Ireland in the mid 1990s, M. bovis has also become a frequent isolate from pneumonic lungs. In a recent study of cattle rearing regions in Northern Italy, M. bovis was the most common bacterial pathogen involved in bovine pneumonia; all veal calves and three quarters of all beef cattle were seropositive to M. bovis. A commercial vaccine still appears a long way from availability in Europe but autogenous vaccines, which are being used increasingly, may help to bridge this gap in the short term. ID nr. 3833 Radaelli E, Luini° M, Loria GR, Nicholas RAJ, Scanziani E Bacteriological, serological, pathological and immunohistochemical studies of Mycoplasma bovis respiratory infection in veal calves and adult cattle at slaughter Res Vet Sci. - Vol. 85 no2 ( 2008). - p 282-290. - 38 bib ref Impact factor: 1,274 Pag. 59 di 300 31/08/2011 Mycoplasma bovis is an important cause of calf pneumonia worldwide. In this study, we examined 140 cattle at slaughter comprising 70 veal calves and 70 beef cattle; 115 animals with pneumonic lesions and 25 without. Lung samples were submitted for bacteriological, histological, and M. bovis-immunohistochemical analyses. Serology for M. bovis was positive in 76% of beef cattle and 100% of veal calves. M. bovis was isolated only from veal calves in 16 out of 64 pneumonic cases. M. bovis was detected by immunohistochemistry in seven bacteriologically positive cases. M. bovis antigen was associated with bronchogenic necrosuppurative or fibrinonecrotizing lesions. Bacteriologically positive and immunohistochemical negative cases were associated with catarrhal bronchointerstitial pneumonia. Results suggest that M. bovis infection may develop into a severe necrosuppurative bronchopneumonia or fibrinonecrotizing pneumonia when associated with a high number of intralesional organisms or, conversely, into a mild catarrhal bronchointerstitial pneumonia when associated with a low number of organisms. ID nr. 3834 Engel B, Buist W, Orsel K, Dekker A, De_Clercq K, Grazioli° S, Van_Roermund Herman A Bayesian evaluation of six diagnostic tests for foot-and-mouth disease for vaccinated and nonvaccinated cattle Prev Vet Med. - Vol. 86 ( 2008). - p 124-138. - 21 bib ref Impact factor: 1,704 Project SSPE-CT-2003-503603 - Improvement of foot and mouth disease control by ethically acceptable methots based on scientifically validated assays and new knowledge on FMD vaccines, including the impact of vaccination (FMD-IMPROCON). - De Clercq Dr. Kris - UO - CE - 2003 - 2399907,00 EUR - 01/01/2004 0.00.00 - 31/12/2008 0.00.00 - 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I The sensitivity and specificity of six ELISA tests for foot-and-mouth disease (FMD) to discriminate between sero-converted (for non-structural FMD virus proteins) and non-sero-converted cattle were evaluated for vaccinated and unvaccinated cattle. Since none of the tests could be considered as a proper reference test and for about half of the tested sera the true status (sero-converted or not for non-structural proteins, i.e. presence of antibodies) of the animals was unknown, a Bayesian analysis employing a latent class model was used that did not rely on the use of a reference test or gold standard. Prior information about prevalence for subsets of the data and specificity of the tests was incorporated into the analysis. The specificity of the six tests for vaccinated and non-vaccinated cattle ranged from 96 to 99%. For vaccinated cattle, one test stood out with an estimated sensitivity of 94% (95% CI from 89.8 to 98.1 %). Second best for vaccinated cattle were two tests with estimated sensitivities of 85% (95% CI from 78.9 to 89.7%) and 92% (95% CI from 86.2 to 95.6%). For non-vaccinated cattle, the sensitivities of these three tests were around 97%. The remaining three tests showed lower estimated sensitivity for vaccinated cattle, ranging from 57 to 79%. ID nr. 3835 Zarenghi L, Fedrizzi° G, Masselli° M, Caprai° E, Ungari D, Gorreri M, Nocera L, Menotta° S Aflatoxin M1 concentration levels inside cheese samples and evaluation of its distribution between whey and cheese during the production Sci Tec Latt Casearia. - Vol. 59 no 2 ( 2008). - p 133-139 - 7 ref bib The contamination from aflatoxins (B and G) in cereals during 2003 caused a massive contamination from aflatoxin M1 in cow milk and consequently in milk derivates. In Emilia Romagna region the production of matured cheese is a very important reality, so it was necessary to analyse these products before the merchandising. These kind of cheese has a long ripening time, its weight is about 30 kg and no informations were about the aflatoxin M1 distribution inside the cheese. As first step of the work the concentrations of aflatoxin M1 in different areas of cheese were analysed. Three different cheeses were subdivided in 4 parts Pag. 60 di 300 31/08/2011 each one from external to internal area (rind, sub-rind, medium area and centre). Each part was analysed separately and aflatoxin M1 concentration was evaluated. In the same time aflatoxin M1 was analysed from a portion of total cheese. By means of statistical evaluations it was possible to set the homogeneus distribution of aflatoxin M1 inside the cheese. The second aim of this work was to know how aflatoxin M1 was transferred from milk to cheese during the production phases and if it would be possible to evaluate which factors influence this aflatoxin M1 repartition. The cheeses product from milk with aflatoxin M1 concentration between 0,055 and 0,280 pg/kg had concentrations between 0,080 and 0,640 pg/kg. The calculated transfer factors were fro 0,7 to 7,7 but 90,7% were lower than 5. No one correlation was detected to explain these differences from cheese to cheese. ID nr. 3836 Menotta° S, Caprai° E, Masselli° M, Nocera L, Taus L, Massirio° I, Fedrizzi° G Emergency during year 2003: control of aflatoxin MI levels in cheese samples produced in Emilia Romagna region Sci Tec Latt Casearia. - Vol. 59 no 2 ( 2008). - p 113-119. - 8 ref bib First author Menotta, Simonetta During the summer 2003 the particular atmospheric conditions caused the proliferation of aflatoxins (B and G) in cereals and feed. The resulting massive contamination from aflatoxin M1 in cow milk and derivates cried for a rapid and exhaustive analysis of all Emilia Romagna products. The Regional Authorities started a particular plan to improve the controls of regional cheeses produced between November 2003 and December 2004. In Emilia Romagna region the production of matured cheese is a very important reality, so it was necessary to analyse theese products before the merchandising. An LC-MS/MS analytical method was developed and 378 cheese samples were analysed. These samples Game from 144 batches of matured cheese that the veterinary authorities abducted because produced with suspected irregular milk. Totally the 95,2% of samples was regular with concentration of aflatoxin M1 lower than 0,45 pg/kg. Thirteen batches of cheese were irregulars: they had one or more cheese with residues of aflatoxin M1 more than 0,450 pg/kg. ID nr. 3837 Campos RdM, Malirat V, Neitzert E, Grazioli° S, Brocchi° E, Sanchez C., Falczuk AJ, Ortiz S, Rebello MA, Bergmann IE Development and characterization of a bovine serum evaluation panel as a standard for immunoassays based on detection of antibodies against foot-and-mouth disease viral non-capsid proteins J Virol Methods. - Vol. 151 no 1 ( 2008). - p 15-23. - 27 bib ref Impact factor: 1,933 Project SSPE CT 2003 503603 - Improvement of foot and mouth disease control by ethically acceptable methots based on scientifically validated assays and new knowledge on FMD vaccines, including the impact of vaccination (FMD-IMPROCON). - De Clercq Dr. Kris - UO - CE - 2003 - 2399907,00 EUR - 01/01/2004 0.00.00 - 31/12/2008 0.00.00 - 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I The widespread perception of the effectiveness of applying tests based on the detection of antibodies against foot-and-mouth disease (FMD) viral non-capsid proteins (NCPs) to assess virus circulation irrespective of vaccination triggered the demand for international standards to evaluate the comparative performance of the upcoming assays against the OIE Index test developed at the Pan American Foot-and-Mouth Disease Center, PAHO/WHO. To this end, a panel was developed composed of 34 cattle sera from animals with an unambiguous exposed/infected status, covering serotypes 0, A and C, obtained either under experimental conditions or from the field in regions with different epidemiological situations. Reference values in the Index test and their reproducibility in other laboratories, data on stability as well as results in four other commercial kits and one in house test were obtained. The characteristics of the panel which comprise adequate Pag. 61 di 300 31/08/2011 preparation following international guidelines, a broad range of antibody reactivity, proper stability and the ability to assess comparative diagnostic sensitivity, make it suitable as a reference standard to evaluate if tests equivalent to the OIE Index method are used in support of FMD control programs and by trading partners, and also whether they maintain their standards of diagnostic performance. ID nr. 3838 Taddei° R, Barbieri° I, Pacciarini° ML, Fallacara° F, Belletti° GL, Arrigoni° N Mycobacterium porcinum strains isolated from bovine bulk milk : implications for Mycobacterium avium subsp. paratuberculosis detection by PCR and culture Vet Microbiol. - Vol. 130 ( 2008). - p 338-347. - 25 bib ref Impact factor: 2,010 Project PRC2002106 - Development and validation of techniques for detection and viability evaluation of MAP, a potential hazard for humans, in raw and pastorized bovine milk. - Lillini Dr. Eugenio - UO MINSAN - 2002 - 139150,00 EUR - 15/09/2003 0.00.00 - 30/11/2005 0.00.00 - 1 - N6 Piacenza - Arrigoni Dr.ssa Norma - I First author Taddei, Roberta In this study, the isolation of 52 mycobactin-independent fast growing mycobacteria from 631 bulk milk samples (8.2%), is reported. These strains, isolated during a bulk milk survey for Mycobacterium avium subsp. paratuberculosis (Map), strongly affected Map detection both by PCR and by culture, as they gave a positive IS900 PCR signal and resulted to totally inhibit the growth of Map when spotted on HEYM slants already inoculated with 200 µl of 10-fold dilutions containing from 5 x 10 to 5 x 103 Map cells/ml. 16S rRNA gene sequencing, using the MicroSeq 500 16S rDNA Bacterial Sequencing Kit (Applied Biosystems), was performed on a subset of six strains, identifying Mycobacterium porcinum with 100% homology in ali six cases. The 52 strains were characterized by PCR-restriction fragment length polymorphism (RFLP) analysis of the hsp65 gene, which confirmed the identification of M. porcinum for al] the isolates. Using specific primers designed on the Map-IS900 sequence and on the M. porcinum sequence determined in this study, a 1385 bp sequence from the M. porcinum genome was characterized. This IS900-like sequence showed 82% homology with Map IS900. From our findings the following results emerged: (a) any culture showing one or more M. porcinum colonies represents a potential "false negative" result and should therefore be considered as contaminated; (b) IS900-like elements could be more widespread than was previously thought; (c) IS900 PCR positive results should be interpreted cautiously, as confirmed by the evidence that the primer pair used in this study resulted not to be specific. ID nr. 3840 Ferrari° M, Candotti° P, Lombardi° G, Amadori° M, Dotti S, Guana S, Petrini S A comparison of the humoral and cell-mediated response of pigs experimentally infected with either influenza or PRRS viruses Vet Res Commun. - Vol. 31 suppl 1 ( 2008). - p 199-201. - 5 bib ref Impact factor: 0,529 Project PRC2004012 - Definition and standardization of immunological parameters for the detection of a cell-mediated response following influenza virus infection in swine - Amadori Dr. Massimo - Solo MINSAN - 2004 - 32700,00 EUR - 01/07/2005 0.00.00 - 31/12/2006 0.00.00 - 1 - L1 - Reparto Substrati Cellulari - Ferrari Dr.ssa Maura - I First author Ferrari, Maura not found. Pag. 62 di 300 31/08/2011 ID nr. 3841 Fedrizzi° G, Accurso D, Scandurra S, Montesissa C Kinetics of Tilmicosin after per os administration to rabbits Fourth International Conference on Antimicrobial Agents in Veterinary Medicine (AAVM) : Prague, Czech Republic, August, 24-28, 2008 : program and abstracts / [s.l. : s.n., 2008]. - p 83 International Conference on Antimicrobial Agents in Veterinary Medicine (AAVM) (4 : Prague, Czech Republic : August, 24-28, 2008) First author Fedrizzi, Giorgio Tilmicosin, a macrolide with great clinical efficacy in respiratory diseases, easily attains high intrapulmonary concentrations as alveolar macrophages can concentrate the drug. When tilmicosin is administered to pigs (18,5 mg/kg) via drinking water, the drug attains blood levels lower than 0.01 µg/mL and peak concentration in lungs (0.4-0.6 µg/g) alter 72 hours. In chicks repeat oral tilmicosin (18 mg/kg) attains higher levels in blood (0.10 pg/ml) and in lungs (3.29 µg/g at 48 hours). In calves fed tilmicosin via milk at 12.5 mg/kg twice a day for five days, peak concentration was reached in blood 102 h after treatment and in lungs after 78 h (42.7 µg/g). In the present kinetic study Tilmicosin (12 mg/kg bw) was administered once to 8 fasted rabbits, via oral gavage. Absorption rate was fast, as blood peak was already attained at the first sampling time (30 min). The rapid decrease to less than 0.10 µg/ml within two hours and steady blood levels maintained around 0.03 µg/ml for 48 hours after administration, suggested a rapid distribution to target tissues with a slow release. The efficacy of orally administered Tilmicosin to control respiratory disease in rabbits was achieved in clinical trials. A study with 3tilmicosin administered subcutaneously to rabbits, confirmed its fast distribution to lungs: peak concentration (14.43 µg/g) was attained within two hours and levels >3µg/g were maintained for 72 h. To confirm that oral Tilmicosin could attain concentrations exceeding the target pathogen's MIC in rabbit lungs and alveolar macrophages, much faster and longer than in blood, its distribution to target tissues should be carefully evaluated. ID nr. 3842 Montesissa C, Zanoni° M, Salogni° C, Guadagnini G, Gradassi° M, Tagliabue° S, Alborali° L Five years of in vitro susceptibility testing on Salmonella spp. and E. coli spp strains isolated from pigs in Italy (2002-2006) Fourth International Conference on Antimicrobial Agents in Veterinary Medicine (AAVM) : Prague, Czech Republic, August, 24-28, 2008 : program and abstracts / [s.l. : s.n., 2008]. - p 99 International Conference on Antimicrobial Agents in Veterinary Medicine (AAVM) (4 : Prague, Czech Republic : August, 24-28, 2008) First author Zanoni, Maria Grazia The results on the in vitro susceptibility of 684 and 719 strains of various serotypes of Salmonella spp, and E. coli spp, respectively, are reported in the present study. All the isolates were collected at farms from pigs showing enteric symptoms during a five years period (2002- 2006) of routine diagnostic activity. The antimicrobial susceptibility, of amoxycillin-clavulanic acid and trimethoprim/sulfametazine combinations and that of aminosidine, kanamicin, apramicin gentamicin, amoxicillin, ceftiofur, cefaloridine, cefquinome, flumequine, enrofloxacin, danofloxacin, marbofloxacin, florfenicol, tiamulin, tetracyclines, doxicycline, and sulfadiazine, was assayed by the Kirby-Bauer test. In vitro susceptibility of the E. coli strains, although variable, was satisfactory. Among drugs frequently employed in pig therapy, the recent combination amoxicillin-clavulanic acid and the old drug colistine were more effective in vitro than sulphamethazinetrimethoprim or tiamulin (more than 80% were resistant strains. Along the five year study Salmonella spp, isolates showed lower resistance and variability against the antimicrobial drugs tested, than E coli spp. The highest percentage of resistant strains was shown against sulfadiazine (94% -100%) and tetracycline (87% 96%), by far greater than that against the sulphametazine-trimethoprim combination (35% -66%). The efficacy of old but stili used flumequine did not change during the five years study (40%-60%). As expected, the highest efficacy was shown by the antimicrobials recently authorized for pig therapy and by those marketed as injectable preparations. Pag. 63 di 300 31/08/2011 ID nr. 3843 Menotta° S, Carone° V, Bolognesi° E, Caprai° G, Fedrizzi° G Determination of chloramphenicol residues in royal jelly with liquid chromatography-tandem mass spectrometry: validation of the method based on 2002/657/EC Fourth International Conference on Antimicrobial Agents in Veterinary Medicine (AAVM) : Prague, Czech Republic, August, 24-28, 2008 : program and abstracts / [s.l. : s.n., 2008]. - p 60 International Conference on Antimicrobial Agents in Veterinary Medicine (AAVM) (4 : Prague, Czech Republic : August, 24-28, 2008) First author Menotta, Simonetta During the summer of 2005 some consumer associations accused a massive contamination of chloramphenicol (CAP) in Royal Jelly imported from China. CAP is a broad-spectrum antibiotic but it's been included in Annex IV Regulation 2377/90 because its heavy toxically effects demonstrated in human. It's illegally used against bee's diseases or to preserve honey and its derivates from microbiological contaminations. Royal jelly, because of its singular properties (restorative characteristics) is consumed by particular class of people, such as old people and children. To preserve public health, Italian labs began to analyse this compound, very different from other bees products. The Royal Jelly chemical characteristics impeded to use screening techniques, so a rapid method for determination and confirmation of CAP was developed. Following addition of d5-Chloramphenicol as internal standard, Royal Jelly was finely mixed with silica-powder and extracted with ethyl acetate. After centrifugation, a fraction of supernatant was evaporated. The residue was reconstituted with methanol-water and analysed in LC-MS/MS. By using an MRM acquisition method in negative ionization mode, the transitions 321>152, 321>194 and 326>157 were respectively used for quantification, confirmation and internal standard. The method validation was based on EU-decision 2002/657. The CAP linear range was from 0,1 to 0,6 gg/kg. Intra-laboratory reproducibility was 7,7%: repeatability was 10%. The mean recovery was 80,6%. CC(alfa) and CCP were 0,14 µg/kg and 0,16 µg/kg respectively. During the emergency phase (from August 2005 to March 2006) more than 200 samples coming from China were analysed and 17% presented levels over the MPRL fixed by EC for CAP. ID nr. 3844 Scaccabarozzi L, Turchetti B, Buzzini P, Pisoni G, Bertocchi° L, Arrigoni° N, Boettcher P, Bronzo V, Moroni P Short communication : isolation of Prototheca species strains from environmental sources in dairy herds J Dairy Sci. - Vol. 91 n 9 ( 2008). - p 3474 - 3477. - 19 bib ref Impact factor: 2,361 First author Bertasi, Barbara Composite milk samples from 548 cows, and samples from feces, feed, bedding, water, liners (before and after milking), and the postdipping product were aseptically collected from2 ltalian dairy herds from February to November of 2006. Prototheca. zopfii was isolated from 11.9% of milk samples, 15% of feces. and 33.3% of bedding samples. No viable cells of P. zopfii were observed in water before washing procedures, whereas 25 to 28.6% of samples from water used for washing both refrigeration tanks and milking equipment were contaminated with this yeast-like microalga. Analogously, the presence of P. zopfii was detected only on swabs collected from the liners after milking. Interestingly, in 1 of the 2 herds, water from the drinking trough was contaminated by viable cells of both P. zopfii and the related environmental species Prototheca stagn.ora. No viable cells were observed in cow feed. On the basis of the results presented herein, P. zopfir: seemed to be widespread throughout the environments of dairy herds where outbreaks of bovine mastitis had occurred. Pag. 64 di 300 31/08/2011 ID nr. 3851 Camarda A, Circella E, Giovanardi D, Pennelli D, Battista P, Campagnari E, Bruni G, Tagliabue° S Avian pathogenic Escherichia coli in Audouin gulls (Larus audouinii) : could they affect the surviving of the bird colonies? Ital J Anim Sci. - Vol. 6 no 3 ( 2007). - p 317-320. - 7 bib ref Impact factor: 0,172 Trentanove stipiti di E. coli isolati da uova embrionale non schiuse e tamponi cloacali di gabbiani corsi (Larus audouinii), facenti parte di una colonia stanziale nel Salento (Puglia), sono stati sierotipizzati e testati nei confronti dei principali geni di virulenza espressi dagli Avian Pathogenic Escherichia coli (APEC) (irp2, fyuA, tsh, papC, fimC, iucD ed eae). Sono stati distinti 8 diversi sierotipi (01, 06, 08, 015, 075, 0139, 0146, 0147). Elevata la percentuale di E. coli non tipizzabili. La ricerca dei geni di virulenza ha evidenziato la prevalenza dei geni fimC e irp2 (rispettivamente 94,87 e 97,43%) tipici degli Avian Pathogenic E. coli. I ceppi che veicolavano il maggior numero di geni di virulenza provenivano soprattutto dalle uova. In particolare, l'8,69% di questi apparteneva al patotipo FimC/tsh/IucQ1 associato nel pollame a focolai di malattia. ID nr. 3859 Petrini S, Villa° R, Guercio A, Paniccià M, Ramadori G, Pezzotti G Study of the possible latency of bovine herpesvirus type 1 (BHV-1) experimentally conferred in calves previously treated with two BHV-1 DNA vaccines Atti Soc Ital Sci Vet. - Vol. 62 ( 2008). - cdrom p 143-144. - 5 bib ref Convegno Nazionale della Societa' Italiana delle Scienze Veterinarie (SISVET) (62 : S. Benedetto del Tronto (AN) : 2008) Project PRF2003304 - Comparative study of the efficacy of the immunizing systems towards type 1 herpetic viruses in humans and animals - Guercio Dr.ssa Annalisa - UO - MINSAN - 2003 - 212500,00 EUR - 01/02/2004 0.00.00 - 30/09/2006 0.00.00 - 1 - L1 - Centro Substrati Cellulari - Ferrari Dr.ssa Maura - I In this study two DNA vaccines expressing a truncated secreted form of the glycoprotein D (tgD) of BHV-1 and a CpG sequence, were inoculated in calves. Three months after challenge infection with 1311V-1 virulent strain, all calves were subjected to dexamethasone (DMZ) treatment, for the study of latency. No clinical signs of disease were observed in any of the inoculated calves during the observation period. The virulent virus was reactivated from all calves 7 and 9 days post treatment with DMZ. The neutralizing antibody against BHV-1, and ELISA antibody against tgD of BHV-1 increased 24 days post treatment with DMZ. On the basis of the results obtained, the DNA vaccines used in this experiment, failed to protected the calves against the latency established with BHV-1 virulent strain. ID nr. 3860 Corradi A, Losi° CG, Renzi° S, Sesso L, Galdi A, Motta A, Cinotti° S Isolation, amplification and characterization of equine chondrocytes Atti Soc Ital Sci Vet. - Vol. 62 ( 2008). - cdrom p 179-180. - 5 bib ref Convegno Nazionale della Societa' Italiana delle Scienze Veterinarie (SISVET) (62 : S. Benedetto del Tronto (AN) : 2008) Use of Mesenchymal Stem Cells (MSCs) represents an approach in tissue reconstitution, thanks to their ability to differentiate in various cells of the mesodermal line, including cartilage. An alternative system consists in cell therapy using autologous chondrocytes. These cells could be used in tissue engineering and Pag. 65 di 300 31/08/2011 represent a reference cell system for MSCs based treatment. In the present study, equine chondrocytes were cultivated in vitro; furthermore inclusion in alginate beads, solubilisation and characterization were performed. In future, MSCs plasticity and growth of this type of cells on different bioscaffolds will be evaluated, together with the analysis in immunohistochemistry and immunofluorescence. ID nr. 3864 Decaro N, Desario C, Miccolupo A, Campolo M, Parisi A, Martella V, Amorisco F, Lucente MS, Lavazza° A, Buonavoglia C Genetic analysis of feline panleukopenia viruses from cats with gastroenteritis J Gen Virol. - Vol. 89 no 9 ( 2008). - p 2290-2298. - 35 bib ref Impact factor: 3,120 Thirty-nine parvovirus strains contained in faecal samples collected in Italy (n=34) and UK (n=5) from cats with feline panleukopenia were characterized at the molecular level. All viruses were proven to be true feline panleukopenia virus (FPLV) strains by a minor groove binder probe assay, which is able to discriminate between FPLV and the closely related canine parvovirus type 2. By using sequence analysis of the VP2 gene, it was found that the FPLV strains detected in Italy and UK were highly related to each other, with a nucleotide identity of 99.1-100 and 99.4-99.8% among Italian and British strains, respectively, whereas the similarities between all the sequences analysed were 98.6-100%. Eighty-eight variabie positions were detected in the VP2 gene of the fieid and reference FPLV strains, most of which were singletons. Synonymous substitutions (n=57) predominated over non-synonymous substitutions (n=31), and the ratio between synonymous and non-synonymous substitutions (dN/d S) was 0.10, thus confirming that evoiution of FPLV is driven by random genetic drift rather than by positive selection pressure. Some amino acid mutations in the VP2 protein affected sites that are thought to be responsible for antigenic and biological properties of the virus, but no clear patterns of segregation and genetic markers, were identified, confirming that FPLV is in evolutionary stasis. ID nr. 3865 Zanoni° M, D'Incau° M, Spisani° M, Gaffuri° A, Tagliabue° S, Alborali° L Isolation and characterization of salmonella strains from wild boar (Sus scrofa) in Northern Italy 8th conference of the European Wildlife Disease Association (EWDA) : focusing on diseases of European wildlife and recent changes in disease distribution : 2-5 October, 2008 Rovinj, Croatia / [s.l. : s.n., 2008]. - p 95-96 Conference of the European Wildlife Disease Association (EWDA) (8th : Rovinj, Croatia : 2-5 October, 2008) First author Zanoni, Maria Grazia In order to investigate the role of wild boar as a reservoir of Salmonella spp. we controlled, during the 2006 and 2007 hunting season, 786 animals from a mountain area in Brescia Province, Northern Italy. Cecal content were sampled and cultured according To ISO 6579: 2002 Annex D and, at the same time, To an home made method using Rappaport Vassilidais Broth as enrichment and Hektoen Enteric Agar as differential selective medium. 217 samples (27,61%) resulted positive showing that the most prevalent serotypes, covering 76,03% of the positive isolates, were Salmonella Coeln (45 isolates) Salmonella Ball (34), Salmonella Typhimurium (29), Salmonella enterica subsp. diarizonae 50:r:1,5J71 (23), Salmonella Thompson (19) and Salmonella Veneziana (15). Among the other serotypes, 4 isolates of Salmonella Enteritidis were recovered. Phagetyping of Salmonella Typhimurium revealed the prevalence of phagetype DT104 (17 strains), DT193 (2), U302 (2), DT2 (1); among Salmonella Enteritidis, the only phagetype present was PT4 (3 strains). Strains of Salmonella Typhimurium were also tested for antimicrobial resistance using a panel of 16 antibiotics: 25 strains resulted multi - resistant (resistant to 4 or more antibiotics) and among them, all phagetype DT104 strains were resistant from 6 To 10 antibiotics with a basic profile of resistance for amoxicillin, chloramfenicol, spectinomycin, streptomycin, sulphonamides and tetracycline. Strains of Salmonella Enteritidis did noi show multiresistance against tested antibiotics. Pag. 66 di 300 31/08/2011 ID nr. 3866 Gaffuri° A, Monaci° C, Testa E, Bosio G, Pisoni L, Moroni G, Paterlini° F Wildlife health monitoring in Bergamo Province, Northern Italy: a coordinated program between the official veterinary service, the public administration and the hunters 8th conference of the European Wildlife Disease Association (EWDA) : focusing on diseases of European wildlife and recent changes in disease distribution : 2-5 October, 2008 Rovinj, Croatia / [s.l. : s.n., 2008]. - p 95-96 Conference of the European Wildlife Disease Association (EWDA) (8th : Rovinj, Croatia : 2-5 October, 2008) First author Gaffuri, Alessandra Wildlife welfare is a common concern of different stakeholders: the official veterinary service, for the increasing number of infectious diseases shared between wildlife, domestic animals and humans, the public administrators, for management reasons, and the hunters, for a direct interest in hunter-harvesting. Since 1997 a health monitoring on wildlife in Bergamo Province has been performed, with the informal cooperation of the hunters associations. In 2005 an agreement between the official veterinary service, the public administrators and the hunter associations formalised the collaboration between these parties, with the common aim to a better understanding of health and disease in freeranging wildlife. Through this accord the biological samples, such as blood, faeces and viscera, are collected by the hunters during the hunting seasons and delivered to the laboratory for analysis. Moreover dead animals, recovered in the field by gamekeepers or by hunters, are submitted for necropsy to investigate the death's cause. This network allows to check wildlife morbidity and mortality and to recognize atypical events in the most important wild species of the Province: roe deer, red deer, chamois and wild boar. The presence of some infectious diseases has been investigated through the yearly monitoring program, in particular Brucellosis, Trichinellosis, Classical Swine Fever, Swine Vesicular Disease, Tuberculosis, Johne's disease, Lyme disease, Respiratory Syncytial Virus, Infectious Keratoconjunctivitis, Salmonellosis. Right now we have historic data that can be useful to define the sanitary picture in the wildlife of our Province. Interesting data are recovered by the analysis of both hunted and dead animals; for instance we assessed the presence of M. microti in tuberculosis-like lesions in the wild boar population, we studied the circulation of Respiratory Syncytial Virus inside the chamois population and we have been checking through the years for the potential presence of relevant zoonosis, such as Brucellosis and Trichinellosis. ID nr. 3867 Gaffuri° A, Monaci° C, Vicari° N, Paterlini° F, Magnino° S Detection of Chlamydophila pecorum in the lung of an Alpine chamois (Rupicapra rupicapra) in Northern Italy 8th conference of the European Wildlife Disease Association (EWDA) : focusing on diseases of European wildlife and recent changes in disease distribution : 2-5 October, 2008 Rovinj, Croatia / [s.l. : s.n., 2008]. - p 60 Conference of the European Wildlife Disease Association (EWDA) (8th : Rovinj, Croatia : 2-5 October, 2008) First author Gaffuri, Alessandra Chlamydial infections have been widely detected worldwide both in farmed and in free-living animals, including wild ruminants. Several species belonging to the family Chlamydiaceae cause major reproductive disease (metritis, infertility and abortion), conjunctivitis, arthritis, encephalomvelitis and pneumonia. In our study area, a mountain region in the province of Bergamo, Northern Italy, two causes of Chlamydophila abortus infection were detected in the last few years respectively in a mummified roe deer foetus and in individuals of an ibex population affected by conjunctivitis. Moreover, Chlamydophila pecorum has been isolated several years ago in a chamois affected with pneumonia in another area of the Alps. We report here Pag. 67 di 300 31/08/2011 the detection of Chlamydophila pecorum in a 7 month-old female chamois, submitted to the laboratory by a gamekeeper. The animal came from an area where a remarkable mortality in kids was occurring. At necropsy, the chamois presented a nasal discharge with conglutination of the hair of the nasal region. A fibrinous pericarditis and pleuritis was observed; the lungs were enlarged, oedematous and showed areas of red consolidation in the cranial lobes and at the peripheral sites of the middle and caudal lobes. Wide areas of parasitic nodular lesions were observed in the caudal lobes. Laboratory investigations for bacteria, including mycoplasmas, were performed by inoculating samples of lungs onto Blood agar and PPLO agar plates. Only Moraxella sp., but no mycoplasma, were isolated. Specific PCR-RFLP targeting chlamydiae was carried out and allowed to detect Chlamydophila pecorum. The virological investigation focused on the research of a respiratory syncytial virus, which has been recognized as an agent of pulmonary distress in the area of investigation, but the lung tested negative. No information other than a marked decrease in the number of kids in the chamois population was reported by the gamekeeper nor by local hunters. Although the role of Chlamydophila pecorum and Moraxella in determining the death of the kids is unknown, it is suggested that the necropsied chamois had died of acute respiratory distress, caused by Chlamydophila pecorum with the superinfection by Moraxella sp.. ID nr. 3868 Arrigoni° N, Belletti° G, Manini° F, Galletti° G, Gelmini° L, Merialdi° G, Renzi° M, Tamba° M Survey on the prevalence of paratuberculosis in the Emilia-Romagna Region by bulk milk ELISA test Buiatria. - Vol. 3 no 2 ( 2008). - p 3-9. - 9 bib ref Project PRC2005003 - Use of bulk-milk for bovine paratuberculosis surveillance - Arrigoni Dr.ssa Norma Solo - MINSAN - 2005 - 30000,00 EUR - 02/05/2006 0.00.00 - 01/05/2008 0.00.00 - 1 - N6 Piacenza - Arrigoni Dr.ssa Norma - I 2 - N0 - CEREV - Tamba Dr. Marco - I First author Arrigoni, Norma By using a commercial ELISA test (Institut Pourquier), a survey on 5,081 bulk milk samples belonging to 3,600 dairy herds of the Emilia Romagna region (74.2% of the total herds) has been performed. The herds were submitted to a variable number of tests. On the basis of a single sample per herd, the apparent prevalence of infected herds is 3.2% (95% c.l: 2.7-3.9%), while the estimated real prevalence is 10.7% (95% c.l.: 9.7% - 11.8%). In some provinces, using repeated tests (3 samples/herd), the prevalence resulted significantly higher than the prevalence estimated on the basis of a single test. To obtain an accurate prevalence estimate, the use of a scheme based on repeated sampling is preferable, giving more conservative results. ID nr. 3869 Arrigoni° N, Cammi° G, Cerutti° G, Manini° F, Bersani A, Cavalli L, Fava M, Fea C, Fumi E, Guareschi F, Zioni O, Belletti° GL Study on the persistence of Mycobacterium avium subsp. paratuberculosis in crop fertilized with slurry from bovine infected herds Buiatria. - Vol. 3 no 2 ( 2008). - p 11-16. - 7 bib ref First author Arrigoni, Norma A study on the persistence of Mycobacterium avium subsp. paratuberculosis (Map) in crop fertilized during the autumn-winter period with slurry or manure coming from bovine infected herds with different prevalence levels of Paratuberculosis, was carried out. The tests performed on the crop samples, collected before harvesting, showed a single positive result by PCR (10%) and were always negative to culture. The crop samples, collected after harvesting and at the beginning of their use for animal feeding, were always negative, both in culture and in PCR. These results lead us to conclude that, in the described conditions, the contamination risk for crop, although possible, is of limited importance for the spreading of infection, compared with other Pag. 68 di 300 31/08/2011 hygienic and managerial factors. ID nr. 3870 Bertocchi° L, Varisco° G, Bolzoni° G, Fedrizzi° G, Rumi S Preliminary observations on presence of PCDD/F and dl in cow's milk Buiatria. - Vol. 3 no 2 ( 2008). - p 17-23. - 7 bib ref First author Bertocchi, Luigi Purpose of this work is to highlight the level and type of contamination by organochlorine compounds; PCDD (polychlorinated dibenzo-p-dioxin), PCDF (polychlorinated dibenzofurans) and dl-PCB (polychlorinated dioxin like) of milk tanker composed by diaries bulk milk of Brescia and hinterland. In this area, in the past industries had produced PCBs (1) and still today it's site of many ironworks and steelworks;pollution problem is known and it was monitored , but, the application of new regulations (Reg. CE n° 1881/2006 and Reg. CE n° 1883/2006) ori the limits and the composition of contaminants had imposed new epidemiological studies to provide data and tolls for risk evalutation and analysis. Milk tanker analysis showed WHO-PCDD/F PCB-TEQ values between 2,589 and 3,03 pg/gr of fat, lower than legal limit (6,00 pg/gr. of fat) but higher than action limit 2,00 pg/gr. of fat (raccomandazione CE 144/06) The results indicate PCB as primarily contamination compuonds , representing more than 65% of pollutants, lower than dioxins (PCDD/F). Food for human consumption environmental contamination is certainly widespread, given the huge dispersion of these substances into environment, but there are a few epidemiological studies that describe the magnitude and type of risk. ID nr. 3871 Tosi° G Welfare of alternative poultry breeds and free-range systems 30 giorni. - Vol. 1 no 8 ( 2008). - p 101-102 First author Tosi, Giovanni In this review the standards for the inspection of welfare of the following production systems are described: the rearing production of local poultry breeds and the free-range systems. ID nr. 3872 Bertocchi° L Welfare in dairy and beef cattle 30 giorni. - Vol. 1 no 8 ( 2008). - p 46-48 First author Bertocchi, Luigi This study evaluates welfare on cattle through the combination of observations and findings. These methods should include measurements of behaviour, health status, productive performances of quantity and quality of milk and meat and finally of environmental parameters (stalls, litter and the micro-climate). Here we have shown the principal findings and measurements needed for a full appreciation of cattle welfare. ID nr. 3874 Rota Nodari° S The legislative decree 146/2001 Pag. 69 di 300 31/08/2011 30 giorni. - Vol. 1 no 8 ( 2008). - p 22-24 First author Rota_Nodari, Sara The author illustrate the content of the legislative decree 146/2001 on the welfare of the animals kept for farming purposes.. ID nr. 3876 Vinco° JL Turkeys 30 giorni. - Vol. 1 no 8 ( 2008). - p 94-100 First author Vinco, James Leonardo Current animal welfare legislation does not cover turkeys in specific in spite of the large consumption and production of turkey meat in Europe. This paper highlights the critical points related to the welfare of turkeys at farm level .The ultimate goal is to provide guidelines to the official veterinarians involved in carrying out welfare audits in turkey farms in order to comply with Directive 98/58 CE. ID nr. 3877 Lavazza° A, Cerioli° M, Grilli G Animal Welfare on Farms: application of the National Law 146/2001 in rabbits and hare farms 30 giorni. - Vol. 1 no 8 ( 2008). - p 103-118 First author Lavazza, Antonio In Italy, the protection of animals including, fish, reptiles and amphibians that are reared for food stuffs, wool, skins, furs or any other agricultural purpose, is regulated by law n. 146/2001, governed by directive 98/58/EC and by the specific laws referring to catttle, swine and layer farms. This chapter specifically deals with rabbit and hares farming. It met the requirement of the whole course i.e. to improve national animal awareness, so that consumer ethical requirements meet the equally valid expectations of farm development and in particular to give farmers the educational and informational basis to respect community regulations. ID nr. 3880 Bosi P, Casini L, Tittarelli° C, De_Filippi S, Trevisi P, Clavenzani P, Mazzoni M Effect of dietary addition of nitrate on growth, salivary and gastric function, immune response, and excretion of Salmonella enterica serovar Typhimurium, in weaning pigs challenged with this microbe strain Ital J Anim Sci. - Vol. 6 suppl 1 ( 2007). - p 266-268. - 7 bib ref Impact factor: 0,172 Two dietary additions of nitrate (15 mg/kg or 150 mg/kg, supplied by potassium salt) were test-ed in a total 96 weaning pigs challenged or not with Salmonella enterica serovar typhimurium (ST). The oral challenge was done on d 5 and pigs were sacrificed on d 7 or d 25. The effect of challenge never interacted significantly with the dietary treatment. Feed intake; growth, body temperature, salivary excretion, and faecal excretion of ST and gastric function were not affected by the nitrate supplementation. With nitrate additions, total IgA in blood serum tended to be higher before and after the challenge (P<0.10). Nitrite in saliva - but not nitrate - increased with the increasing supplementation at d 5, but not at d 19. The nitrate additions did not negatively affect the weaning performance, but also did not contrast the effect of ST infection. Pag. 70 di 300 31/08/2011 ID nr. 3886 Vitali A, Bertocchi° L, Lacetera N, Bernabucci U, Cuteri A, Guerini° M, Nardone A Seasonal variation of mortality rate in dairy cows of the Po Valley (Italy) : a retrospective study from 2001 to 2006 J Anim Sci. - Vol. v 86 e-suppl 2 ( 2008). - p 2 Joint Meeting American Dairy Science Association American Society of Animal Science : July 7 -11, 2008) Impact factor: 2,102 The present study is aimed to analyze seasonal variations of mortality rate in dairy cows. The analysis was carried out in years 2001-2006 and in the geographic area comprised between 44°- 46°.15' latitude north and 8 '.30'- 12°.30' longitude east, known as the area of the Po Val ley including the regions Lombardia and Emilia Romagna, Italy. This area is characterized by a subcontinental-temperate climate and a high density of dairy herds (approximately 900,000 dairy cows in 45,000 square kilometres). Data were extracted from the Italian Bovine Spongiform Encephalopathy (BSE) database, which provided data of daily mortality of cows older than 24 months. Data on cow populations were provided by the ltalian National Institute of Statistics. The standardized mortality ratio (SMR) for each season and for each year was calculated by the ratio of observed and expected deaths (OD and ED, respectively). The ED for each of the 6 years considered in the study were calculated by the product between annual mortality rate and the population of the area, stratified by 4 age classes. Under the hypothesis of Poisson distribution, a 95% confidence interval (CI) was calculated for the SMR and its value was considered statistically significant if the valve 1 was outside the confidence range. For all years and regions, the analysis of SMR showed that during summer season the OD was significantly higher than the ED. In summer season OD overcame ED by values ranging from +21% (year 2005. Lombardia) to +60% (year 2003. Lombardia), the corresponding 95% CI were 1.17-1.24 and 1.57-1.64 for the years 2005 and 2003, respectively. Results reported herein indicate the relevance to develop appropriate strategies, including management, feeding, genetic selection and insurance plans, to limit economic losses associated with heat stress in dairy cows. ID nr. 3886a Vitali A, Bertocchi° L, Lacetera N, Bernabucci U, Cuteri A, Guerini° M, Nardone A Seasonal variation of mortality rate in dairy cows of the Po Valley (Italy) : a retrospective study from 2001 to 2006 J Dairy Sci. - Vol. v 91 e-suppl 1 ( 2008). - p 2 Joint Meeting American Dairy Science Association American Society of Animal Science : July 7 -11, 2008) Impact factor: 2,361 The present study is aimed to analyze seasonal variations of mortality rate in dairy cows. The analysis was carried out in years 2001-2006 and in the geographic area comprised between 44°- 46°.15' latitude north and 8 '.30'- 12°.30' longitude east, known as the area of the Po Val ley including the regions Lombardia and Emilia Romagna, Italy. This area is characterized by a subcontinental-temperate climate and a high density of dairy herds (approximately 900,000 dairy cows in 45,000 square kilometres). Data were extracted from the Italian Bovine Spongiform Encephalopathy (BSE) database, which provided data of daily mortality of cows older than 24 months. Data on cow populations were provided by the ltalian National Institute of Statistics. The standardized mortality ratio (SMR) for each season and for each year was calculated by the ratio of observed and expected deaths (OD and ED, respectively). The ED for each of the 6 years considered in the study were calculated by the product between annual mortality rate and the population of the area, stratified by 4 age classes. Under the hypothesis of Poisson distribution, a 95% confidence interval (CI) was calculated for the SMR and its value was considered statistically significant if the valve 1 was outside the confidence range. For all years and regions, the analysis of SMR showed that during summer season the OD was significantly higher than the ED. In summer season OD overcame ED by values ranging from +21% (year 2005. Lombardia) to +60% (year 2003. Lombardia), the corresponding 95% CI were 1.17-1.24 and 1.57-1.64 for the Pag. 71 di 300 31/08/2011 years 2005 and 2003, respectively. Results reported herein indicate the relevance to develop appropriate strategies, including management, feeding, genetic selection and insurance plans, to limit economic losses associated with heat stress in dairy cows. ID nr. 3894 Porrini C, Sabatini AG, Mutinelli F, Astuti M, Lavazza° A, Piro R, Tesoriero D, Medrzycki P, Sgolastra F, Bortolotti L Cases of depopulation and mortality in apiaries in Italy: report of investigation conducted during 2008 Osservatorio. - Vol. 11 no 6 ( 2008). - p 13-15 During last years several cases of bee losses have been reported during the period of corn sowing in different European countries. During 2008 when an increase of cases was reported, some Italian regions decided to organise an official network to collect data and analyse dead bee samples. The visual examination and the virological analyses excluded pathological causes. The spatial and temporal correlation between hive damages and corn sowing and the presence of residues of active ingredients used for seed dressing (imidacloprid, thiamethoxam and clothianidin) in almost half of the samples confirm the connection between Spring mortality and the sowing of corn seed dressed with neonicotinoids. ID nr. 3895 Massi° P, Tosi° G, Fiorentini° L Experimental challenge trial with a “very virulent” strain of infectious bursal disease virus (vvIBDV) in commercial pullets vaccinated with an IBD vectored vaccine or with three different modified live vaccines Zootec Int. - Vol. 11 ( 2008). - p 50-57. - 6 bib ref First author Massi, Paola An experimental challenge trial with a “very virulent” strain of infectious bursal disease virus (vvIBDV) was carried out in commercial pullets with maternally derived antibodies to IBDV and reared in isolators. The aim of the study was to compare the protection induced by the IBD vector vaccine vHVT13, in which the turkey herpesvirus (HVT) is used as the vector of the IBDV VP2 gene, with the protection induced by different conventional live vaccines. ID nr. 3897 Zanoni° M, Guadagnini G, Gradassi M, Salogni° C, D'Incau° M, Alborali° GL Study of antibiotic resistance in Salmonella typhimurium strains isolated during 2005-2007 20th International Pig Veterinary Society Congress (IPVS) : Durban, South Africa 22-26 June 2008 : Poster Volume 2 / Durban, South Africa : Hein Jonker Media Managment, 2008. - p 503 - 5 bib ref International Pig Veterinary Society Congress (IPVS) (20 : Durban, South Africa : 22-26 June 2008) First author Zanoni, Maria Grazia not found. ID nr. 3898 Pozzi SP, Yadin H, Lavi J, Pacciarini° M, Alborali° L Pag. 72 di 300 31/08/2011 Porcine circovirus type 2 (PCV2) infection of pigs in Israel : clinical presentation, diagnosis and virus identification Isr J Vet Med. - Vol. 63 no 4 ( 2008). - p 122-124. - 14 bib ref Impact factor: 0,105 During the years 2006-2007, an increase of respiratory and enteric problems in piglets after weaning was reported from pig herds in westem Galilee. These problems were accompanied by increased mortality and a lower growth rate of the affected piglets. A reduced growth rate was also noted in older pigs at these farms. Sick piglets were bled on three affected farms, and on necropsy, lungs, inguinal and mesenteric lymph nodes were collected from carcasses, and submitted to laboratory examination. Evidence for the presence of porcine circovirus type 2 (PCV2), was based on positive ELISA serology; virus isolation; polymerase chain reaction (PCR) and immunohistochemistry (IHC) on the lymphoid tissues. To our knowledge this is the first case on PCV2 identification in Israel pigs. ID nr. 3900 Franco A, Merialdi° G, Lurescia M, Feltrin F, Buccella C, Riccardi F, Bassoli O, Cito G, Cuoghi G, De_Bassa E, Floriani E, Perrone V, Razzini P, Liuzzo G, Battisti A Survey for methicillin resistant Staphylococcus aureus in slaughter pigs in Italy. Preliminar report Epidemiologia : strumenti per conoscere, agire e decidere in sanità pubblica veterinaria : IV Workshop nazionale di epidemiologia veterinaria : Università degli studi "Sapienza" : Roma, 11-12 Dicembre 2008 : riassunti / a cura di Gaia Scavia, Susan Babsa e Marcello Sala. - Roma : Istituto Superiore di Sanità, 2008. (ISTISAN congressi ; 08/C12) p 102-103 Workshop nazionale di epidemiologia veterinaria (4 : Roma : 11-12 Dicembre 2008) First author Merialdi, Giuseppe Preliminar results of a MRSA survey in pigs at slaughterhouse are reported. The study included batches from 118 fattening herds. Sixty pigs from each batch were sampled by nasal swab. Thirty-eight percent of holdings resulted colonized. Genetic heterogeneity between isolated strains was shown. More complete genetic characterization will be reported in an exhaustive paper. ID nr. 3901 Delogu M, Ostanello F, Moreno_Martin° A, Lelli° D, Frasnelli° M, Marzadori° F, Raffini° E, De_Marco MA PCV2 infection in wild boar: antibody dynamics in a monitored population in a protected area (20022006) Epidemiologia : strumenti per conoscere, agire e decidere in sanità pubblica veterinaria : IV Workshop nazionale di epidemiologia veterinaria : Università degli studi "Sapienza" : Roma, 11-12 Dicembre 2008 : riassunti / a cura di Gaia Scavia, Susan Babsa e Marcello Sala. - Roma : Istituto Superiore di Sanità, 2008. (ISTISAN congressi ; 08/C12) p 91 Workshop nazionale di epidemiologia veterinaria (4 : Roma : 11-12 Dicembre 2008) PCV2 antibody dynamics was studied in a demographic managed wild boar population in Northern Italy from 2002 to 2006. A total of 1499 sera were tested with a competitive ELISA assay. Serological prevalence was determined in 4 age classes (< 6 months, 6-12 months, 1-2 years, > 2 years) and in sex classes. Higher prevalence were found in females with a statistically significant difference and in age classes 1 and 4 . Antibody titres were higher in adult (classes 3 and 4) than in young animals.. Pag. 73 di 300 31/08/2011 ID nr. 3902 Tamba° M, Venturi L, Angelini P, Baldelli R, Bellini R, Borrini BM, Dottori° M, Poglayen G, Rugna° G, Venturelli C, Martini E Surveillance on vector-borne diseases in Emilia-Romagna Region, Italy Epidemiologia : strumenti per conoscere, agire e decidere in sanità pubblica veterinaria : IV Workshop nazionale di epidemiologia veterinaria : Università degli studi "Sapienza" : Roma, 11-12 Dicembre 2008 : riassunti / a cura di Gaia Scavia, Susan Babsa e Marcello Sala. - Roma : Istituto Superiore di Sanità, 2008. (ISTISAN congressi ; 08/C12) p 151-152 Workshop nazionale di epidemiologia veterinaria (4 : Roma : 11-12 Dicembre 2008) First author Tamba, Marco In recent years an increase in vector-borne disease activity has been recorded in different regions. The epidemiology of such diseases is conditioned by complex interactions among environment, parasite, vector, man and eventually animal - either domestic or wild - reservoir. For these reasons a regional surveillance program focused on vectored diseases was implemented in Emilia-Romagna. The aim of the project is to create a regional surveillance and risk assessment system based on a multidisciplinary network, with the capability of collecting data about both vector populations dynamics, and possible presence of pathogens in vectors, men and animals. It has therefore been constituted a working group composed by physicians, veterinarians and entomologists. After only two months from its constitution, the working group had to manage the Chikungunya epidemic occurred in Ravenna and Cervia municipalities during summer of 2007. After only 15 days from the reporting of the first human cases, it has been possible to perform the diagnosis, isolating the virus from the vector (Aedes albopictus), to define a reporting system of clinical suspects and diagnostic procedures in man. In the same time an intensive vector control program was carried out in infected areas.. ID nr. 3903 Spaggiari° B, Cuccurese A, Merialdi° G, Aldrovandi A, Massirio I, Leonelli° R, Dottori° M Survey of pathogen diffusion in a roe deer (Capreolus capreolus) population affected by diarrhoea in the province of Reggio Emilia. Epidemiologia : strumenti per conoscere, agire e decidere in sanità pubblica veterinaria : IV Workshop nazionale di epidemiologia veterinaria : Università degli studi "Sapienza" : Roma, 11-12 Dicembre 2008 : riassunti / a cura di Gaia Scavia, Susan Babsa e Marcello Sala. - Roma : Istituto Superiore di Sanità, 2008. (ISTISAN congressi ; 08/C12) p 148-149 Workshop nazionale di epidemiologia veterinaria (4 : Roma : 11-12 Dicembre 2008) First author Spaggiari, Brunella A survey was conducted between 2007 and 2008 on free-living roe deers in the province of Reggio Emilia following a reported increased mortality in the population during summer 2007. Enterocolitis, which was found to be the preeminent cause contributing to roe deer wasting and death, along with high roe deer densities and unfavourable environmental conditions, has concurred to the lethal outcome for a considerable number of animals. ID nr. 3904 Pongolini° S, Bergamini° F, Carra° E, D'Incau° M, Lambertini A, Fontana R, Bassi° S Use of genetic markers for epidemiological investigation of food-borne outbrakes by Salmonella enterica subsp. enterica serovar Enteritidis Epidemiologia : strumenti per conoscere, agire e decidere in sanità pubblica veterinaria : IV Workshop nazionale di epidemiologia veterinaria : Università degli studi "Sapienza" : Roma, 11-12 Dicembre 2008 : riassunti / a cura di Gaia Scavia, Susan Babsa e Marcello Sala. - Roma : Istituto Superiore di Sanità, 2008. (ISTISAN congressi ; 08/C12) p 136-137 Pag. 74 di 300 31/08/2011 Workshop nazionale di epidemiologia veterinaria (4 : Roma : 11-12 Dicembre 2008) Project PRC2005006 - Study of the virulence, sensitivity to antibiotics and genetic characteristics of strains of Salmonella enterica sub. Enterica isolated from avian species, particularly regarding serovars of high significance to public health - Tosi Dr. Giovanni - Solo - MINSAN - 2005 - 20000,00 EUR 03/04/2006 0.00.00 - 02/04/2007 0.00.00 - 1 - N3 - Forlì - Massi Dr.ssa Paola - I 2 - N4 - Modena - Pongolini Dr. Stefano - I First author Pongolini, Stefano The aim of the study was the molecular epidemiological investigation of two unrelated food-borne outbrakes caused by Salmonella enterica subsp. enterica serovar Enteritidis that took place in the Province of Modena in 2007. A total of 14 isolates were obtained from patients, food, food products and farm animals involved in the suspected food chains (eggs and turkey meat). MLVA and PFGE assay of the isolates confirmed their identity within each episode and permitted to distinguish the strains involved in the two unrelated episodes. In particular, MLVA with eight markers showed superior performance, precisely discriminating the two strains.. ID nr. 3905 Tamba° M, Rugna° G, Baldelli R, Calzolari° M, Dell'Anna° S, Dottori° M, Galletti° G, Piva S, Poglayen G, Renzi° M, Martini E Surveillance on Canine Leishmaniosis in dog shelters of Emilia-Romagna Epidemiologia : strumenti per conoscere, agire e decidere in sanità pubblica veterinaria : IV Workshop nazionale di epidemiologia veterinaria : Università degli studi "Sapienza" : Roma, 11-12 Dicembre 2008 : riassunti / a cura di Gaia Scavia, Susan Babsa e Marcello Sala. - Roma : Istituto Superiore di Sanità, 2008. (ISTISAN congressi ; 08/C12) p 155-156 Workshop nazionale di epidemiologia veterinaria (4 : Roma : 11-12 Dicembre 2008) First author Tamba, Marco Canine Leishmaniosis (Lcan) occurrence is raising in Northern Italy causing an increase in human cases. In 2007 a surveillance program in dog shelters started in Emilia-Romagna with the aim to control Lcan. In 22 dog shelters both serological and entomological program were carried out. Over 3000 dogs were tested by IFI with an overall prevalence of 1.5%. Vector presence was detected trough sticky traps in 7 sites. Shelters were classified in four risk classes based on presence/absence of vector (Ph.perniciosus or Ph.perfiliewi) and presence/absence of infected dogs (IFI titer >1:80). Different preventive measures were defined and implemented for each risk class. ID nr. 3906 Tamba° M, Fontana MC, Leonelli° R, Santi° A, Martini E, Barigazzi° G, Bardasi° L, Dottori° M Yersinia enterocolitica O:9 and false positive reactions to Bovine Brucellosis serological tests Epidemiologia : strumenti per conoscere, agire e decidere in sanità pubblica veterinaria : IV Workshop nazionale di epidemiologia veterinaria : Università degli studi "Sapienza" : Roma, 11-12 Dicembre 2008 : riassunti / a cura di Gaia Scavia, Susan Babsa e Marcello Sala. - Roma : Istituto Superiore di Sanità, 2008. (ISTISAN congressi ; 08/C12) p 153 -154 Workshop nazionale di epidemiologia veterinaria (4 : Roma : 11-12 Dicembre 2008) Project PRC2005007 - Study of the unspecific reactions in the diagnosis of bovine brucellosis - Dottori Dr. Michele - Solo - MINSAN - 2005 - 109600,00 EUR - 05/06/2006 0.00.00 - 04/06/2008 0.00.00 1 - N8 - Reggio Emilia - Dottori Dr. Michele - I 2 - G2 - Reparto di Batteriologia Specializzata - D'incau Dr. Mario - I 3 - N4 - Modena - Barigazzi Dr. Giuseppe - I 4 - N0 - CEREV - Tamba Dr. Marco - I 5 - T1 - OEVRL - Zanardi Dr. Giorgio - I Pag. 75 di 300 31/08/2011 6 - M2 - Bergamo - Paterlini Dr. Franco - I First author Tamba, Marco Yersinia enterocolitica (YE) O:9 causes false positive reactions to Bovine Brucellosis serological tests. A survey on YE prevalence was carried out in cattle in Emilia-Romagna. Between may 2006 and april 2008 1939 single faeces samples were collected and tested for YE presence. Cattle tested were divided in two groups: (A) heads positive to Brucellosis complement fixation test (n. 151), and (B) heads negative to Brucellosis complement fixation test (n. 1290) YE was detected in 72 animals. YE prevalence were equal to 35.1%in group A and equal to 1.5% in group B. 100% of YE isolated in group A and 42% in group B were identified as O:9. In Emilia-Romagna YE O:9 seems strictly related to false positive reactions to brucellosis test. ID nr. 3907 Bardasi° L, Fontana° MC, Stanzani F, Marliani A, Palminteri S, Baldi M, Grandini S, Rugna° G, Galletti° G, Merialdi° G, Vecchi° G Survey on Dermatophytes diffusion in feline colonies in Bologna between 2004-2007 Epidemiologia : strumenti per conoscere, agire e decidere in sanità pubblica veterinaria : IV Workshop nazionale di epidemiologia veterinaria : Università degli studi "Sapienza" : Roma, 11-12 Dicembre 2008 : riassunti / a cura di Gaia Scavia, Susan Babsa e Marcello Sala. - Roma : Istituto Superiore di Sanità, 2008. (ISTISAN congressi ; 08/C12) p 55-56 Workshop nazionale di epidemiologia veterinaria (4 : Roma : 11-12 Dicembre 2008) First author Bardasi, Lia Dermatophytoses are common infections of domestic animals. Among domestic species dogs and cats show the highest levels of prevalence. Microsporum canis, Microsporum gypseum, Trichophyton mentagrophytes are the main etiological agents of clinical dermatophytoses. Between January 2004 and December, 2007, dermatological specimens (hairbrush) from 2572 cats of feral colonies living in city of Bologna were examined for Dermatophytes. 278 (10,8%) examined animals scored positive for dermatophytes. M. canis was the most frequently recovered dermatophyte. ID nr. 3909 Tamba° M, Arrigoni° N, Galletti° G, Gelmini° L, Merialdi° G, Renzi° M, Belletti° G Comparison between different sampling methods to estimate Johne's disease prevalence trough ELISA on bulk milk Epidemiologia : strumenti per conoscere, agire e decidere in sanità pubblica veterinaria : IV Workshop nazionale di epidemiologia veterinaria : Università degli studi "Sapienza" : Roma, 11-12 Dicembre 2008 : riassunti / a cura di Gaia Scavia, Susan Babsa e Marcello Sala. - Roma : Istituto Superiore di Sanità, 2008. (ISTISAN congressi ; 08/C12) p 24-25 Workshop nazionale di epidemiologia veterinaria (4 : Roma : 11-12 Dicembre 2008) Project PRC2005003 - Use of bulk-milk for bovine paratuberculosis surveillance - Arrigoni Dr.ssa Norma Solo - MINSAN - 2005 - 30000,00 EUR - 02/05/2006 0.00.00 - 01/05/2008 0.00.00 - 1 - N6 Piacenza - Arrigoni Dr.ssa Norma - I 2 - N0 - CEREV - Tamba Dr. Marco - I First author Tamba, Marco To estimate Johne's disease herd prevalence in Emilia-Romagna two sampling methods were compared. In 782 herds during the same year bulk milk were sampled both one and three-time and tested through commercial ELISA. Apparent prevalences were corrected by sensitivity and specificity of the used test. The estimated prevalence resulted from three-time sampling method was significantly higher than prevalence from single sampling. Due to low test sensitivity, repeated sampling is needed to properly estimated herd Pag. 76 di 300 31/08/2011 prevalence. ID nr. 3910 Bertoletti° I, Bianchi° A, Andreoli E, Mattiello S Sanitary survey of wild roe deer (Capreolus capreolus) hunted in Sondrio Province (Italy) during 2006 Epidemiologia : strumenti per conoscere, agire e decidere in sanità pubblica veterinaria : IV Workshop nazionale di epidemiologia veterinaria : Università degli studi "Sapienza" : Roma, 11-12 Dicembre 2008 : riassunti / a cura di Gaia Scavia, Susan Babsa e Marcello Sala. - Roma : Istituto Superiore di Sanità, 2008. (ISTISAN congressi ; 08/C12) p 57-58 Workshop nazionale di epidemiologia veterinaria (4 : Roma : 11-12 Dicembre 2008) First author Bertoletti, Irene To investigate the health conditions of wild roe deer (Capreolus capreolus) in Sondrio Province (Central Italian Alps), gross necropsies on 34 roe deer found dead in field and 42 roe deer culled during three hunting seasons (1st September-15th december) – years 2006, 2007 and 2008 - were carried out collecting blood, faecal and tissue samples. ID nr. 3911 Andreoli E, Bertoletti° I, Bianchi° A, Radaelli E, Scanziani E, Mattiello S Serological and istological survey about Leptospirosis in population of red deer (Cervus elaphus) in Central Alps Epidemiologia : strumenti per conoscere, agire e decidere in sanità pubblica veterinaria : IV Workshop nazionale di epidemiologia veterinaria : Università degli studi "Sapienza" : Roma, 11-12 Dicembre 2008 : riassunti / a cura di Gaia Scavia, Susan Babsa e Marcello Sala. - Roma : Istituto Superiore di Sanità, 2008. (ISTISAN congressi ; 08/C12) p 49-50 Workshop nazionale di epidemiologia veterinaria (4 : Roma : 11-12 Dicembre 2008) To investigate the prevalence of Leptospirosis in wild red deer (Cervus elaphus) population in Sondrio Province (Central Italian Alps) were carried out collecting 203 samples of blood and 70 tissue samples from hunted individuals culled during 1995-2007 period. The seroprevalence was about 6.4% by MAT technique. The serovariant identified were Australis/Bratislava, Grippotyphosa, Pomona, Sejroe/Hardjo, Copenaghen. ID nr. 3913 Scordella G, Rubini° S, Fedrizzi ° G, Bresolin R Seafood safety laws in E.U. markets Glob Aquac Advocate. - Vol. 2008). - p 26-28 To meet citizens high expectations, European Union seafood regulations implement quality management and process-oriented controls throughout the food chain. E.U. food businesses must work to reduce risks for consumer health. Imports must meet E.U. requirements and come from approved establishments inspected by the competent authority of the exporting country. When problems arise, the Rapid Alert System for Food and Feed notifies member states and the European Commission. ID nr. 3914 Pag. 77 di 300 31/08/2011 Cardeti G, Ponticello L, Cittadini M, Lavazza° A, Amaddeo D, Formato G Practical considerations on bee viral diseases Apitalia. - Vol. 2 ( 2008). - p 18-20 Project PRC2007110 - Epidemiological study on notifiable bee diseases and evaluation of the relative sanitary legislation - Formato dr.Giovanni - UO - MINSAN - 2007 - 4950,00 EUR - 01/12/2008 0.00.00 - 30/11/2010 0.00.00 - 1 - G1 - Reparto di Virologia e Sierologia Specializzata - Lavazza Dr. Antonio - I Viral diseases of bees need specific diagnostic methods. The severity of infestation by Varroa destructor, widely diffused and distributed in Italian apiaries, often represents the primary cause of the development of viral infections which can lead to mortality of the colonies. Therefore, particularly attention should give to bee viruses, even when present as sub-clincal infection. Nevertheless many data are still unclear and further studies are needed to better understand pathogenetic patterns of infections such as(route of transmission and type of damaged induced to bee as well as to define the more useful strategies to control viral infections when established in a colony. ID nr. 3915 Vassallo C, Ardigò M, Brazzelli V, Zecca M, Locatelli F, Alessandrino PE, Lazzarino M, Corona S, Lanzerini P, Benazzo M, Fabbi° M, Borroni G Bartonella-related pseudomembranous angiomatous papillomatosis of the oral cavity associated with allogeneic bone marrow transplantation and ora graft-versus-host disease Br J Dermatol. - Vol. 157 ( 2007). - p 174-178. - 30 bib ref Impact factor: 3,334 Patients undergoing allogeneic stem cell transplantation are at high risk for infection with a variety of pathogens during different phases of the procedure. Human infections due to Bartonella spp. are viewed as emerging diseases typical in, although not exclusive to, immunosuppressed patients, in particular those with AIDS, organ transplants and haematological malignancies. We describe four patients, three children and one adult, who developed vegetating papillomatous lesions exclusively on the oral mucosae. They shared a history of haematological malignancy and allogeneic bone marrow/stem cell transplantation, and laterdeveloped chronic graft-versus-host disease, also involving the oral mucosae. Histopathologically, the vegetating lesions were characterized by a diffuse neo angiogenesis, granulation-like tissue, and a mixed cell infiltrate predominandy composed of neutrophils. Gram-negative bacteria were found in the endothelial cells of the vessels in the deeper portion of the corium by electron microscopy. In three cases, DNA of B. henselae was detected by polymerase chain reaction (PCR), and confirmed by sequencing of the PCR products. All the lesions healed after systemic antibiotic therapy, although some recurred after months, and regressed again after systemic antibiotic treatment associated with conservative surgical excision. ID nr. 3919 Marcolini° A, Varisco° G, Bertocchi° L, Bolzoni° G Estimation of chlorides in bulk milk Latte. - Vol. 82 no 2 ( 2009). - p 54-58 First author Marcolini, Antonio Experimental work to verify the possibility to estimate chlorides in large number samples by automated. ID nr. 3920 Pag. 78 di 300 31/08/2011 Spaggiari° B, Bonilauri° P, Bertocchi° L, Fantini V, Gelmetti° D, Dottori° M Monitoring of respiratory disease of beef calf at slaughter: a standardized method for lung and pleural scoring Summa anim reddito. - Vol. 3 no 9 ( 2008). - p 8-13. - 17 bib ref First author Spaggiari, Brunella Beef calf respiratory disease causes direct and indirect losses, due to death or decrease in cattle average daily gain, respectively. A standardized method is presented for lung and pleural lesions scoring of beef calf at slaughter . ID nr. 3922 Radaelli E, Del_Piero F, Aresu L, Sciarrone F, Vicari° N, Mattiello S, Tagliabue° S, Fabbi° M, Scanziani E Expression of major histocompatibility complex class II antigens in porcine leptospiral nephritis Vet Pathol. - Vol. 46 no 5 ( 2009). - p 800-809 - 37 bib ref Impact factor: 1,443 Class II major histocompatibility complex (MHCII) is required for the presentation of antigens to CD4 helper T cells. During nephritis, not only primary antigen presenting cells such as histiocytes and lymphocytes, but also cytokine-stimulated tubular epithelial cells express MHCII. Leptospirosis in fattening pigs is characterized by several degrees of nephritis, from absence of lesions to severe multifocal tubulo-interstitial inflammation. Renal tissue from 20 8-month-old pigs with spontaneous nephritis and 6 control pigs without renal lesions were investigated for leptospirosis by indirect immunohistochemistry (IHC) and polymerase chain reaction (PCR). IHC for MHCII also was performed on renal samples. Serum samples were tested for different serovars of Leptospira interrogans. Control pigs were free of interstitial nephritis and negative for leptospirosis by all tests. In pigs with nephritis, serology was positive for serovar Pomona in 19/20 pigs. In 16 of these 19 pigs, leptospiral renal infection was confirmed by PCR and/or indirect IHC. Nephritic lesions were classified histologically into perivascular lymphocytic (4 pigs), lymphofollicular (6 pigs), lymphohistiocytic (8 pigs), and neutrophilic (2 pigs) pattern. MHCII expression by histiocytes and lymphocytes was observed in all lesions. Prominent MHCII expression in regenerating tubular epithelium was observed in lymphofollicular and lymphohistiocytic nephritis. No tubular colocalization between leptospiral and MHCII antigen was observed. Results suggest that during leptospiral nephritis, MHCII contributes to the intensity of the inflammatory response. Furthermore de novo MHCII expression in regenerating tubules may play a role in the defence mechanism against leptospiral tubular colonization. ID nr. 3923 Pozzi W, Vezzoli° F, Blanchaert A, Falco F Porcine reproductive and respiratory syndrome and Aujeszky disease virus : intradermal vaccination with combined or single antigens Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 425-429. - 4 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) In the modem swine industry, vaccination schemes are becoming progressively more intensive, in order to optimize productive performance in both breeders and fattening animals, but also time-consuming. Concems remain in respect of the risks associated with parenteral administration such as diseases transmission, tissues reaction, broken needles and behavioural responses, the last of these being of most importance in breeding sows and gilts which usually require several doses during the year. Intradermal, needle-less vaccination and combinations of antigens may help in reducing workloads, disease risks and concerns about animal welfare. Pag. 79 di 300 31/08/2011 In this trial, safety and immunological efficacy of two antigens, PRRSV and ADV, were analyzed when given at the same time, either separately, or in combination, via the intradermal route. ID nr. 3924 Blanchaert A, Vezzoli° F, Pozzi P PRRS and ADV : results obtained from the intradermal vaccination of gilts using the vaccines separately or in combination 20th Internationl Pig Veterinary Science Congress IPVS 2008 : Durban, South Africa, 22-26 June 2008 : poster proceedings / [s.l : s.n, 2008]. - p 413. - 3 bib ref International Pig Veterinary Society Congress (IPVS) (20 : Durban, (South Africa) : 22-26 June 2008) not found. ID nr. 3925 Donati M, Laroucau K, Storni E, Mazzeo C, Magnino° S, Di_Francesco A, Baldelli R, Ceglie L, Renzi° M, Cevenini R Serological response to pgp3 protein in animal and human chlamydial infections Vet Microbiol. - Vol. 135 ( 2009). - p 181-185. - 19 bib ref Impact factor: 2,370 Specific antibodies to plasmid-encoded protein pgp3 are known to be encountered in human Chlamydia (C.) trachomatis infections. In order to verify whether antibodies to this protein could be developed in animals infected with plasmid-carrying chlamydial strains, 454 animai sera were examined using a home-made pgp3 protein ELISA and Western blots (WB) of recombinant pgp3 protein from Chlamydophila (Cp.) psittaci. Likewise, 50 human sera were tested by ELISA and WB of recombinant pgp3 from C. trachomatis. The reactivity against pgp3 protein was compared to the reactivity against chlamydial elementary bodies (EBs) detected by microimmunofluorescence (MIF) test. The presente of pgp3-specific antibodies was demonstrated in most ducks and pigeons with Cp. psittaci infection detected by MIF, as well as in the majority of symptomatic cats and pigs infected with Cp. felis and C. suis, respectively, which reacted at high titres to Cp. felis and C. suis EBs by MIF. Moreover, most of the sera collected from patients with C. trachomatis cultureconfirmed infection and seropositive to C. trachomatis by MIF, presented antibodies dpecific to C trachomatis pgp3 recombinant protein. Therefore, pgp3 protein could be a useful marker of chlamydial infections in animals, as well as in humans. ID nr. 3926 Revez J, Rossi M, Renzi° M, Zanoni RG Occurrence of Campylobacter SPP. in italian rabbit farms Proceedings of the 9th World rabbit congress : Verona (Italy) June 10-13, 2008 / editors Gerolamo Xiccato, Angela Trocino and Steven D. Lukefahr. - 1. ed. - Brescia : Fondazione Iniziative Zooprofilattiche e Zootecniche, 2008. - (Atti delle Giornate di Studio Fondazione Iniziative Zooprofilattiche e Zootecniche ; 72) p 299 World rabbit congress (9 : Verona (Italy) : June 10-13, 2008) First author Renzi, Maria In order to investigate the occurrence of Campylobacter spp. in rabbits reared in intensive and rural farms, the caecal contents of 39 animals from 13 different farms (3 rabbits per farm) were collected from April to November 2007. The whole intestinal tract from each rabbit was obtained just after evisceration at the Pag. 80 di 300 31/08/2011 slaughterhouse or during necroscopy, and processed within 4 hours. Approximately 5 g of caecal contents were squeezed into 5 ml of sterile saline and shaken in order to obtain a homogenous suspension. Samples were inoculated by streaking 10 µl of each suspension directly onto four different selective fresh media: Blaser-Wang's Agar (Oxoid), Skirrow's Agar (Oxoid), Nutrient Agar N°2 (Oxoid) 5% sheep blood plus CAT Selective Supplement (CAT, Oxoid) and modified Charcoal Cefoperazone Deoxycholate Agar (mCCDA, Oxoid). In addition, samples were inoculated on a non selective medium such as Nutrient Agar N°2 (Oxoid) 5% sheep blood using a modified filter technique of Steele & McDermott. Ali plates were incubated in a jar at 37°C±1 under a microaerobic atmosphere with hydrogen and examined daily for growth up to 12 days. From each sample, 3 colonies showing the same morphotype referable to Gram negative, curved or spiral rod bacteria, were cloned. Ali the selected colonies were subjected to genus-specific PCR for Campylobacter. Positive isolates were submitted to the PCRs specific for C. jejuni, C. coli, C. upsaliensis, C. helveticus and C. lari. The isolates which resulted negative to the species-specific PCRs were subjected to rpoB sequence phylogenetic analysis.A total of 36 out of 39 animals (92.3%) and ali the 13 farms resulted positive for Campylobacter. Ali isolates were positive for Campylobacter genus PCR but negative for ali the speciesspecific PCRs tested. Phylogenetic analysis based on the partial nucleotide rpoB sequences of 13 isolates (one strain per farm) randomly selected and the reference strains showed that ali the rabbit isolates clustered together in a tight clade. This cluster was clearly separated from ali the other Campylobacter species with high bootstrap values (100), indicating that these isolates may belong to a new species. This survey allowed reporting the occurrence of a probably new Campylobacter species in the caecal contents of farmed rabbits in Italy. Further studies are necessary to describe it and evaluate its possible pathogenic effect on rabbit as well as the eventual zoonotic role. ID nr. 3926a Revez J, Rossi M, Renzi° M, Zanoni RG Occurrence of Campylobacter SPP. in italian rabbit farms http://world-rabbit-science.com/WRSA-Proceedings/Congress-2008-Verona/Papers/P-Revez.pdf (ultimo accesso 20 febbraio 2009). - Vol. 2008). - p 1051-1054. - 10 ref bib World rabbit congress (9th : Verona (Italy) : June 10-13, 2008) In order to investigate the occurrence of Campylobacter spp. in rabbits reared in intensive and rural farms, the caecal contents of 39 animals from 13 different farms (3 rabbits per farm) were collected from April to November 2007. The whole intestinal tract from each rabbit was obtained just after evisceration at the slaughterhouse or during necroscopy, and processed within 4 hours. Approximately 5 g of caecal contents were squeezed into 5 ml of sterile saline and shaken in order to obtain a homogenous suspension. Samples were inoculated by streaking 10 µl of each suspension directly onto four different selective fresh media: Blaser-Wang's Agar (Oxoid), Skirrow's Agar (Oxoid), Nutrient Agar N°2 (Oxoid) 5% sheep blood plus CAT Selective Supplement (CAT, Oxoid) and modified Charcoal Cefoperazone Deoxycholate Agar (mCCDA, Oxoid). In addition, samples were inoculated on a non selective medium such as Nutrient Agar N°2 (Oxoid) 5% sheep blood using a modified filter technique of Steele & McDermott. Ali plates were incubated in a jar at 37°C±1 under a microaerobic atmosphere with hydrogen and examined daily for growth up to 12 days. From each sample, 3 colonies showing the same morphotype referable to Gram negative, curved or spiral rod bacteria, were cloned. Ali the selected colonies were subjected to genus-specific PCR for Campylobacter. Positive isolates were submitted to the PCRs specific for C. jejuni, C. coli, C. upsaliensis, C. helveticus and C. lari. The isolates which resulted negative to the species-specific PCRs were subjected to rpoB sequence phylogenetic analysis.A total of 36 out of 39 animals (92.3%) and ali the 13 farms resulted positive for Campylobacter. Ali isolates were positive for Campylobacter genus PCR but negative for ali the speciesspecific PCRs tested. Phylogenetic analysis based on the partial nucleotide rpoB sequences of 13 isolates (one strain per farm) randomly selected and the reference strains showed that ali the rabbit isolates clustered together in a tight clade. This cluster was clearly separated from ali the other Campylobacter species with high bootstrap values (100), indicating that these isolates may belong to a new species. This survey allowed reporting the occurrence of a probably new Campylobacter species in the caecal contents of farmed rabbits in Italy. Further studies are necessary to describe it and evaluate its possible pathogenic effect on rabbit as well as the eventual zoonotic role. Pag. 81 di 300 31/08/2011 ID nr. 3927 Bellini° S, Alborali° L, Bonazza V, Avisani° D, Zanardi° G Swine Vesicular Disease in Lombardy Region : pattern of spread in a high density pig area International Meeting on Emerging Diseases and Suveillance IMED : Vienna, Austria, February 13-16, 2009 : Final Program / [s.l. : s.n., 2009]. - p 96 International Meeting on Emerging Diseases and Suveillance : Vienna, Austria : February 13-16, 2009) First author Bellini, Silvia Swine vesicular disease (SVD) is a vesicular condition of pigs induced by an Enterovirus. Although the disease is frequently mild in nature, il was included in List A of the OIE for the similarity of its lesions to those produced by Foot-and-Mouth Disease (FMD) Even though compare to FMD. SVD is considered moderately contagious morbidity is lower and the lesions less severe. In Europe in the last decade. SVD has been persistently reported in Italy and for this reason surveillance and eradication activities are in place. In the period 2006-2007 SVD Spread widely in the Italian Northern Regions. Lombardy. a densely populated pig area, was most affected and difficulties were encountered in eradicating the disease. Even though SVD is considered to be moderately contagious, the 2006-2007 epidemic in Lombardy was characterized by a rapid Spread of the condition: 53 outbreaks ,were detected and some 150.000 pigs were stamped out. To verify the Pattern of disease spread in high-density-pig areas and to highlight risk factors the epidemiological investigations were carried out in the outbreaks and evaluated. The outbreaks reported in the period may be grouped in two epidemic periods. During the first one SVD spread among the farms according to the typical pattern of transmission. In the second period. instead. the diseases showed an endemic trend in a small portion of the region on (27 km ) where the main risk factor for outbreaks, was proximty to a previous outbreak. To achieve eradication in this area. It was necessary depopulate a group of pig farms, considered at risk of infection. ID nr. 3928 Pistone D, Maioli G, Pajoro° M, Fabbi° M, Vicari° N, Epis S, Bandi C, Defilippo° F, Dottori° M Rickettsia slovaca in Dermacentor marginatus ticks removed from wild boars (Sus scrofa) in Emilia Romagna Region, Italy International Meeting on Emerging Diseases and Suveillance IMED : Vienna, Austria, February 13-16, 2009 : Final Program / [s.l. : s.n., 2009]. - p 141 International Meeting on Emerging Diseases and Suveillance : Vienna, Austria : February 13-16, 2009) Project PRC2008005 - Mapping Arthropod Vectors: on field evaluation of different monitoring methods Tamba Dr. Marco - Capofila - MINSAN - 2008 - 187000,00 EUR - 01/10/2009 0.00.00 30/09/2012 0.00.00 - 1 - N0 - CEREV - Tamba Dr. Marco - I 2 - N8 - Sezione diagnostica provinciale di Reggio Emilia - Luppi dr. Andrea - I 3 - M8 - Sezione diagnostica provinciale di Pavia - Fabbi Dr. Massimo - I 4 - G1 - Reparto di Virologia e Sierologia Specializzata - Lelli dr. Davide - I 5 - Centro Agricoltura Ambiente "G. NIcoli" - Bellini dr. Romeo - E 6 - Istituto Zoop. della Sicilia - Torina dr.ssa Alessandra - E Background: Various tick-borne pathogens occur in the Emilia Romagna region (Italy), where Lyme disease, transmitted by Ixodes ricinus, is frequently diagnosed in humans. The epidemiology of other diseases vectored by ticks is still to be defined in this area, e.g. the tick-borne lymphadenopathy TIBOLA or DEBONEL caused by Rickettsia slovaca. Recently, human cases of TIBOLA have been reported in Italy, but in a different region (Tuscany; Selmi et al. 2008). Abundance of wild boars and ticks of the species Dermacentor marginatus in the Emilia Romagna region suggests a high risk for the transmission of the R. slovaca. Thev aim of this study is to determine the prevalence of R. slovaca in D. marginatus ticks removed from hunted wild boars, in order to evaluate the risk of infection for humans. Methods: Seventynine ticks were removed from 18 hunter-killed wild boars from four different areas of Emilia Romagna region during the period SeptemberNovember 2008. Ticks were identified as D. marginatus using standard taxonomic keys. DNA was extracted from ticks using a commercial kit and PCR analysis was applied to determine the presence of Rickettsia spp. Pag. 82 di 300 31/08/2011 Different primers sets were employed, targeted for gltA, gyrB, D-antigen genes. Sequencing of the amplification products allowed identification of R. slovaca in a subset of the PCR-positive samples. Results: A total of 50 ticks (50/79-63%) yielded the expected bands by PCR amplification. The sequencing of a subset of the positive samples confirmed the presence of R. slovaca. Conclusion: Our results shows that R. slovaca is present in ticks of the species D. marginatus collected on wild boars in Emilia Romagna. Work is in progress to obtain gene sequencing from all of the positive samples, in order to generate a clearer picture of the Rickettsiales circulating through D. marginatus in this region. The potential pathogenic role of R. slovaca is well documented, and the risk for transmission to humans in Emilia Romagna must be considered. ID nr. 3929 Calzolari° M, Bonilauri° P, Bellini R, Veronesi R, Barbieri° I, Maioli° G, DeFilippo° F, Dottori° M Detection of an unknown Flavivirus in Aedes caspius mosquitoes in Valli di Comacchio (Italy) International Meeting on Emerging Diseases and Suveillance IMED : Vienna, Austria, February 13-16, 2009 : Final Program / [s.l. : s.n., 2009]. - p172 International Meeting on Emerging Diseases and Suveillance : Vienna, Austria : February 13-16, 2009) First author Calzolari, Mattia Background: A lot of known flaviviruses are transmitted by arthropods (arbovirus) to men and animals causing severe disease. Recently, Italy was involved in two important outbreaks of human arbovirus diseases (Chikungunya and West Nile). In 2007 a regional monitoring program began to detect arboviruses in areas with high density of mosquitoes. We present here the preliminary results of this program. Methods: Mosquitoes were collected with CO2 traps in a variety of wetland locations near Comacchio (Ferrara province) at the end of mosquito season (September-October). Mosquitoes were pooled according to date, location, sex and species. Pools were tested with a Flavivirus genus PCR targeting gene NS5 (260bp) for the simultaneous detection of all flavivirus causing important human and animal disease according to Scaramozzino et al. (2001). Positive Pools were sequenced and analyzed using the ClustalX 2 program. Results: A total of 1267 mosquitoes (81 pools) belonging to the species Aedes caspius, Aedes albopictus and Culex pipiens were tested and 3pools of Ae. caspius resulted positive for Flavivirus genus. The 3 positive pools were sequenced and the Blast analysis revealed a certain similarity (less than 80%) with Culex Flavivirus (CuFV) isolated from Culex pipiens in Japan. Figure 1 shows the Neighbor Joining tree analysis, performed on the same 260 bp fragment of different flavivirus put the detected virus together with flaviviruses isolated only from insects (CuFV, cell fusing agent and Kamiti River virus). This group of sequences is clearly separated from flaviviruses causing diseases in humans and animals Conclusion: The detected flaviviruses probably belong to a group of virus that are present only in mosquitoes species, so this virus daes not represent a risk for human and animal populations. At the same time, these positive PCR detections demonstrate that a flavivirus causing human and animal diseases could be detected, if present, by our regional monitoring program. The presence of these mosquito flaviviruses must be taken into consideration in any future monitoring programs conducted in the same area. Finally, future experimental investigation is needed to characterize this virus . ID nr. 3930 Lelli° D, Moreno° A, Lavazza° A, Sozzi° E, Luppi° A, Canelli° E, Tamba° M, Capucci° L, Cordioli° P Chikungunya : monoclonal antibodies production and their employment in serological diagnosis International Meeting on Emerging Diseases and Suveillance IMED : Vienna, Austria, February 13-16, 2009 : Final Program / [s.l. : s.n., 2009]. - p 186 International Meeting on Emerging Diseases and Suveillance : Vienna, Austria : February 13-16, 2009) First author Lelli, Davide Background: Chikungunya fever epidemic, first evidenced in Italy in 2007, represents the first autochthonous Pag. 83 di 300 31/08/2011 European outbreak of a tropical disease transmitted by vectors (1,2). Monoclonal antibodies (MAbs) specific to Chikungunya virus (CHIKV) were produced and used to develop a competitive ELISA test for anti-CHIKV antibody detection in animal sera from different species collected in the area of the CHIKV outbreak. Methods: Virus used for MAbs production and as antigen in the ELISA test was strain 209395/07 isolated from an insect pool (Aedes Albopictus). Screening and characterization of MAbs were performed by indirect ELISA, immunoperoxidase, virusneutralization (VN) and Western blotting (WB). Twenty known human sera (10 positive and 10 negative) and 493 animal sera (256 dog, 123 pigeon, 79 chicken, 28 nutria and 7 rabbit sera) were analysed. Results: Forty five specific MAbs were produced, 9 with VN activity. Two of these (1H7 and 1E10) resulted positive in WB (3). Two neutralizingMAbs (1H7 and 1A7) were further selected, cloned and conjugate with HRP for the development of a competitive ELISA test. MAb 1H7 reacted against a linear epitope while 1A7 against a conformational epitope located both within the E2 protein. The ELISA test was developed using in parallel the 2 conjugated MAbs. Nunc 96 wells plates were coated with partially purified antigen, four dilutions (from 1/5 to 1/40) of each sera were distributed, followed soon afterwards by the addition of selected MAbconjugates. The ability of sample sera to inhibit the binding of specific MAbconjugate to the antigen was then evaluated and results were expressed as percentage of inhibition. The human sera were correctly identified whereas all the 493 sera resulted negative. Conclusion: The serological diagnosis represents a valid diagnostic tool in the study of the epidemiology of this disease and the effective role of animals in the virus spreading. ID nr. 3934 Tittarelli° C, Cerioli° M, Canelli E, Lavazza° A Diagnosis of enteric viral diseases of dogs in Northern Italy during the period 2002-2008, by using negative staining immuno-electron-microscopy (IEM) X Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) : 22-24 Ottobre 2008 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2008]. - p 300-301. - 10 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (10 : Alghero : 2224 Ottobre 2008) First author Tittarelli, Cristiana The Immuno-electronmicroscopy (IEM) is a sensitive and specific method to detect enteric viruses. The aim of this study is to report the data of identification by IEM of viral agents in diarrheic dogs during the period 20022008 in Northern Italy. The presence of virai particles was observed in 32.2% out of 873 total samples examined by IEM. Parvovirus was identified in 28.9% of them, morbillivirus in 1,8%, coronavirus in 0,9%, calicivirus in 0,6%, enterovirus and herpesvirus in 0,3%, rotavirus, reovirus e paramyxovirus-like in 0,1%. In 13 cases 2 different viruses were observed in association in the same sample. ID nr. 3935 Tittarelli° C, Tranquillo° V, Luppi° A., Nassuato° C, Grilli GJ, Lavazza° A Serological survey for Encephalitozoon cuniculi in pet rabbits: preliminary data X Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) : 22-24 Ottobre 2008 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2008]. - p 298-299. - 8 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (10 : Alghero : 2224 Ottobre 2008) First author Tittarelli, Cristiana During a 10 months-period, 325 sera have been collected from 304 pet rabbits and submitted through Carbon Immuno Assay (CIA) test, to an antibody research for Encephalitozoon cuniculi. Seropositivity was observed in 56.2 % out of 304 examined animals. Seroprevalence in the symptomatic rabbits was 28.8%. This Pag. 84 di 300 31/08/2011 preliminary study supplies originai information about epidemiology of this microsporidium, which is largely wide-spread in pet rabbits living in Italy. ID nr. 3936 Rugna° G, Bardasi° L, Vecchi° G, Mazzini C_Z, Bacchi M, Galletti° G, Merialdi° G, Fontana° MC Post-packaging pasteurization treatment on mortadella experimentally contamined with Listeria spp. X Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) : 22-24 Ottobre 2008 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2008]. - p 284-285. - 9 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (10. : Alghero : 2224 Ottobre 2008) First author Rugna, Gianluca The presence of Listeria monocytogenes in ready-to-eat (RTE) meat products is cause of public-health concern. To reduce the risk of food borne infection and ensure food safety, RTE meat cooked-products can be pasteurized after packaging. In this study the efficacy in reducing L. innocua superficial contamination of three in-package pasteurization protocols (A: 89 "C x 6 min; B: 89 "C x 8 min; C: 89 "C x 10 min) was evaluated. Treatment C ensured superficial contamination reduction also in particularly irregular surfaces like those at the edges of product and can be an effective intervention to reduce L. monocytogenes contamination risk in such products. ID nr. 3937 Pezzoni° G, Brocchi° E A baculovirus expressed NS3 protein of bovine viral diarrhea virus displays conformational and antigenical properties as the native protein X Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) : 22-24 Ottobre 2008 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2008]. - p 264-265. - 2 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (10 : Alghero : 2224 Ottobre 2008) Project PRC2005012 - Production and characterization of recombinant viral proteins as antigens for serology - Pacciarini Dr.ssa Maria - Solo - MINSAN - 2005 - 68000,00 EUR - 04/09/2006 0.00.00 - 03/09/2009 0.00.00 - 1 - H2 - Reparto di Biologia Molecolare - Pacciarini Dr.ssa Maria - I First author Pezzoni, Giulia One of the major immunological proteins of Pestiviruses is the nonstructural protein 3 (NS3), a multifunctional enzyme with at least two domains associated with enzymatic activities: a serine protease activity and a NTPase-elicase activity. This study describes the expression of the entire sequence of NS3 (NS3tot) and its NTPase-elicase domain (NS3E) in a baculovirus system. Both recombinant proteins are recognised by monoclonal antibodies specific for three different conformational epitopes, as well as by BVDV-positive sera. These reactivities provide evidence that the recombinant proteins obtained reproduce folding and antigenicity of the native virai proteins and provide the conditions for the development of a functional antibodydetection ELISA. ID nr. 3939 Martinelli° N, Luppi° A, Lelli° D, Sozzi° E, Canelli° E, Fontana R, Moreno_Martin° A, Lavazza° A, Lombardi° G. Pag. 85 di 300 31/08/2011 Investigation on the presence of pathogens in laboratory mice and rats of breeding and testing centers X Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) : 22-24 Ottobre 2008 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2008]. - p 238-239. - 9 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (10 : Alghero : 2224 Ottobre 2008) First author Martinelli, Nicola A survey to detect antibodies against hepatitis E virus (HEV) was undertaken on 39 Italian pig farms (17 farrow to feeder, 10 farrow to finish and 12 fattening herds). For the study 1422 pig sera samples were tested using a commerciai indirect ELISA, originally developed for testing human sera and properly adapted for the analysis of pig sera. 38 of the farms (97,43%) and 714 on 1422 sera samples (50,21%) resulted positive for anti-HEV IgG antibodies. The study confirm that HEV is spread in pigs in Italy and is probably endemic in many farms. ID nr. 3941 Cardeti G, Lavazza° A, Cittadini M, Ponticello L, Formato G, Tittarelli° C, Amaddeo D Bee viruses and mortality of colonies X Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) : 22-24 Ottobre 2008 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2008]. - p 136-137. - 9 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (10. : Alghero : 2224 Ottobre 2008) Specific viruses affecting honeybees are widespread and normally give latency i.e. they can be detected in seemingly healthy bees. In the fast decade we investigated the presence and spread of bee viruses in Italian hives. Samples of honeybees at different stages were examined by electron microscopy methods, including IEM for ABPV and ELISA test for DWV. DWV and ABPV were often detected in high titres in association with severe signs: depopulation, adult bees with paralysis and/or deformed wings, mortality. ID nr. 3942 Canelli° E, Luppi° A, Barbieri° I, Lavazza° A, Moreno_Martin° A, Sozzi° E, Lelli° D, Cordioli° P Genetic typing of BVDV strains isolated in Lombardia and Emilia Romagna regions from 1999 to 2007 X Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) : 22-24 Ottobre 2008 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2008]. - p 128-129. - 10 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (10. : Alghero : 2224 Ottobre 2008) Project PRC2008016 - An investigation into prevalence of Pestivirus infection in cattle and swine herds. Sozzi Dr.ssa Enrica - Capofila - MINSAN - 2008 - 70000,00 EUR - 01/09/2009 0.00.00 31/08/2011 0.00.00 - 1 - G1 - Reparto di Virologia e Sierologia Specializzata - Sozzi Dr.ssa Enrica - I 2 - IZSUM - De Mia Dr. Gian Mario - E First author Canelli, Elena A panel of 115 BVDVs isolated in the 1999-2007 period from cattle breed in Lombardia and Emilia Romagna Pag. 86 di 300 31/08/2011 regions was subtyped by sequencing and phylogenetically analyzed. Primers used target a fragment of the 5'UTR region of BVDV genome. The data obtained show that the isolates belong lo 9 subtypes within BVDV1, indicating a high level of genetic heterogeneity. Two subtypes never reported before in Italy are described. BVDV-1b and 1e are the most frequent isolated subtypes. The low frequency of BVDV-2 isolates is in agreement with the sporadic Italian occurrence. ID nr. 3943 Cammi° G, Arrigoni° N, Belletti° GL, Garilli F, Ricchi° M, Vicari° N, Tamba° M, Galletti° G Prototheca in bovine bulk tank milk in Northern Italy X Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) : 22-24 Ottobre 2008 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2008]. - p 120-121. - 9 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (10. : Alghero : 2224 Ottobre 2008) First author Cammi, Giuliana Bulk tank milk samples collected from 350 dairy herds located in the Po Valley (Northern Italy) were investigated for Prototheca spp. Ali samples were cultured on PIM at 30 "C for 72 h for total number of Prototheca cells and analyzed also for total bacteria count and somatic cells count. Prototheca spp. were isolated in milk sample from 54 (15,43%) dairy herds. No statistical correlation resulted between Prototheca spp. isolatìon and bulk tank milk somatic celi counts and total bacterial count. ID nr. 3948 Pezzoni° G, Brocchi° E Recombinant NS3 and monoclonal antibodies for serodiagnosis of pestiviruses infection by competitive ELISA X Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) : 22-24 Ottobre 2008 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2008]. - p 80-81. - 2 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (10. : Alghero : 2224 Ottobre 2008) Project PRC2005012 - Production and characterization of recombinant viral proteins as antigens for serology - Pacciarini Dr.ssa Maria - Solo - MINSAN - 2005 - 68000,00 EUR - 04/09/2006 0.00.00 - 03/09/2009 0.00.00 - 1 - H2 - Reparto di Biologia Molecolare - Pacciarini Dr.ssa Maria - I First author Pezzoni, Giulia Bovine Viral Diarrhea Virus (BVDV) belongs to Pestivirus group with viruses responsible for Border Disease and Classical Swine Fever; the three viruses are antigenically related. Currently, serologicai assays for Pestiviruses are based on evaluation of antibody against the non structural protein 3 (NS3). This study reports on the use of a baculovirus expressed NS3 in substitution of Pestivirus as source of antigen in two ELISA formats (trapping and competitive) for detection of antibodies in bovine and swine sera. The discrimination power between positive and negative sera provided by assays using the recombinant antigen led to a sensitivity and specificity of 100% in relation to analogous ELISAs based on virus. ID nr. 3949 Scicluna MT, Zini M, Caprioli A, Cordioli° P, Vulcano G, Della_Verità F, Gregnanini S, Palmerini T, Simula M, Stilli D, Autorino GL Pag. 87 di 300 31/08/2011 Equine infectious anemia : should the agar immunodiffusion test still be used for screening and as unique confirmatory test ? X Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) : 22-24 Ottobre 2008 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2008]. - p 78-79. - 7 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (10. : Alghero : 2224 Ottobre 2008) Following the introduction in 2007, of an extraordinary surveillance programme, imposing the serological control of the Italian equine population for infectious anemia (EIA), our laboratory adopted as screening test, a previously validated in-house p26 CElisa. Samples with positive or doubtful results, were subsequently confirmed by the agar ímmunodiffusion (AGID), the prescribed confirmatory test. The Western blot (WB) assay, recommended by World Organisation Animai Health (WOAH) as compiementary test, was applied for the first time in the EIA contro) programme, for routine samples with equivocai results occurring in our laboratory (positive/doubtful CElisa-negative AGID). Over a 17-month period. 253 sera resulted reactive out of the 32 448 horses bled in the province of Rome. Among the former, 83 were confirmed positive in AGID. For those available, i.e. 91 sampies, further analysis in WB was carried out. Ten of the CElisa pos/AGIDneg horses were confirmed positive, because reactive with both core protein p26 band and al least one of the 2 surface glycolproteins bands, gp45 and gp90, considered this as specific response pattern to an EIA infection. These preliminary results demonstrate the greater sensitivity of the in-house CElisa compared to AGID, important characteristic in a screening test. For such equivocai results, the in series use of Elisa and AGID and/or WB, improves the overail specificity of EIA diagnosis, essential in the eradication of this low prevalent infection. ID nr. 3950 Sozzi° E, Barbieri° I, Lavazza° A, Moreno° A, Lelli° D, Luppi° A, Canelli° E, Bugnetti° M, Cordioli° P Genetic characterization of Porcine enterovirus e testovirus isolated in taly in 2006-2007 X Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) : 22-24 Ottobre 2008 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2008]. - p 66-67. - 7 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (10. : Alghero : 2224 Ottobre 2008) First author Sozzi, Enrica Porcine enterovirus (PEV) and Teschovirus (PTV), belonging to the family Picornaviridae, are ubiquitous and mainly cause asymptomatic infections in pigs. In the present study a total of 40 Italian porcine enteroteschovirus isolates were characterized by the analysis of the sequences of the capsid VP1 encoding gene. The assay turned out to be a useful diagnostic tool for the molecular diagnosis of porcine teschovirus/enterovirus strains and for the study of molecular epidemiology and evolution of these viruses confirming the possibility of correlating virus genotype to serotype. ID nr. 3952 Candotti° P, Rota_Nodari° S, Berti F, Ostanello F, Meliota F Efficacy of a new vaccine (Myco-Suivax®) against Mycoplasma hyopneumoniae under field conditions 20th IPVS Internationl Pig Veterinary Society Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - V. 2. - cdrom p 195. - 3 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, South Africa : 22-26 June 2008) First author Candotti, Paolo Pag. 88 di 300 31/08/2011 not found. ID nr. 3956 Grazioli° S, Brocchi° E, Tranquillo° V, Parida° S, Paton° D Development of solid phase competitive ELISAs based on monoclonal antibodies for the serology of FMDV serotypes SAT1 and SAT2 The global control of IMD tools, ideas and ideals : report European Commission for the Control of Foot-and Mouth Disease Session of the Research Group of the Standing Technical Committee : 14-17 October 2008 Erice, Italy / [s.l. : Food and Agriculture Organization of the United Nations, 2008]. - p 48 Session of the Research Group of the Standing Technical Committee of the European Commission for the Control of Foot-and-Mouth Disease : Erice, Italy : 14-17 October 2008) Project 2003-SSP-3-513645 - New and emerging technologies: improved laboratory and on-site detection of oie list a viruses in animals and animal products (LAB-ON.SITE) - Belak Dr. Sandor - UO - CE 2004 - 1500000,00 EUR - 01/11/2004 0.00.00 - 31/07/2008 0.00.00 - 7 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I PRC2003015 - Development of reagents (monoclonal and polyclonal antibodies) and diagnostic assays for detection of SAT type FMD virus. - Grazioli Dr.ssa Santina - Capofila - MINSAN - 2003 - 26/04/2004 0.00.00 - 25/04/2007 0.00.00 - 25000,00 EUR 1 - H1 - Reparto di Biotecnologie Grazioli Dr.ssa Santina - I 2 - FMD World Reference Laboratory (WRL), Institute for Animal Health, Pirbright Laboratory, UK Paton Dr. David - E First author Grazioli, Santina Introduction: In the spectrum of Foot-and-Mouth Disease (FMD) diagnostic tools there is a gap in the availability of standardised and validated immunoassays for the serology of SAT serotypes. Because of the endemic presence of SAT strains in Africa and the risks due to market globalization, filling this gap should be a priority. Panels of characterised monoclonal antibodies (MAbs) specific for the serotypes SAT 1 and SAT 2 are available in our laboratory and there is much evidence to indicate that diagnostic ELISAs may benefit from the use of MAbs in terms of standardisation and specificity. Within the programme to complete and improve the sets of reagents and diagnostics for FMD, we have developed Solid Phase Competitive ELISAs (SPCE) for the assessment of antibodies to FMDV types SAT 1 and SAT 2. In these assays, specific antibodies in serum are detected due to their ability to compete with a peroxidase-labelled neutralising MAb. Materials and methods: SPCEs were designed with selected MAbs as catching and labelled-competitor antibody. The latter are neutralising MAbs specific for FMDV SAT 1 (4C5) and SAT 2 (2H6) respectively and directed against linear sites of VP1. More than 1000 known negative and few positive experimental sera were used for calibration of the assays; then diagnostic performances were evaluated using cattle sera from different field cases and by comparison with other immunoassays. Results: Specificity of 100% was found for the SAT 1 antibody-detection ELISA; form the SAT 2 test specificity improved from 97.5 to 99.6% according to inclusion or exclusion of a doubtful range. A Bayesian analysis on results obtained with field samples is in progress; preliminary comparative estimates showed for both assays good correlation with virus neutralisation tests and polyclonal-SPCEs. Satisfactory type-specificity was also demonstrated by examining sera positive against other FMDV serotypes. Conclusions: The MAb-based SPCE developed for the detection of antibodies to FMDV types SAT 1 and 2 proved to be a highly specific and sensitive assays. With respect to SPCEs carried out using rabbit and guinea-pig antisera, the MAb-based ELISA is simpler, faster and, above all, more standardised, thanks to the employment of unique invariable MAbs. ID nr. 3957 Brocchi° E, Crosatti° ML, Grazioli° S, Bugnetti° M Preliminary evaluation of panels of monoclonal antibodies developed against four vaccine strains of Pag. 89 di 300 31/08/2011 FMD viruses of serotype A for antigenic profiling and vaccine matching of field isolates The global control of IMD tools, ideas and ideals : report : European Commission for the Control of Foot-and Mouth Disease, Session of the Research Group of the Standing Technical Committee : 14-17 October 2008 Erice, Italy / [s.l. : Food and Agriculture Organization of the United Nations, 2008]. - p 85 Session of the Research Group of the Standing Technical Committee of the European Commission for the Control of Foot-and-Mouth Disease : Erice, Italy : 14-17 October 2008) Project SSPE-CT-2003-503603 - Improvement of foot and mouth disease control by ethically acceptable methots based on scientifically validated assays and new knowledge on FMD vaccines, including the impact of vaccination (FMD-IMPROCON). - De Clercq Dr. Kris - UO - CE - 2003 - 2399907,00 EUR - 01/01/2004 0.00.00 - 31/12/2008 0.00.00 - 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I PRC98004 - Update of reagents and procedures for diagnosis and control of Foot-and-mouth disease toward recognition of newly arrived viral strains - Brocchi Dr.ssa Emiliana - Solo - MINSAN - 1998 - 01/10/1999 0.00.00 - 30/09/2001 0.00.00 - 190000000,00 LIT 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I First author Brocchi, Emiliana Monoclonal Antibodies (MAbs) are strategic resources to study the antigenic profile of new field isolates of Foot-and-mouth Disease (FMD) virus and their antigenic relationships with reference strains. This knowledge is important to properly select most suited vaccine strains when vaccination is adopted as a control measure against FMD. Objective of this work was upgrading of MAbs to FMDV type A through the production of new panels of MAbs to selected vaccine and field strains of type A. Materials and methods: Five strains of type A were selected as target for the production of MAbs, namely the vaccine strains A 22 Iraq, A24 Cruzeiro, A 15 Tahiland 16/60, A Iran 96 and the field isolate A Malaysia 16/97. A preliminary characterisation of MAbs was achieved, based on reactivity in ELISA, Virus neutralisation ability, identification of conformational or linear epitopes and intratype cross reactivity with a panel of 25 strains of type A, including vaccine strains and representative field isolates. Results: Wide panels of MAbs were obtained against each of the five strains of FMDV type A. The variety of MAbs obtained, their various profiles of intra-type reactivity that confirmed the high level of antigenic variability within type A, the diverse reactivity in Western Blot and Virus Neutralising tests were indicative that these MAbs actually cover different antigenic sites and may be useful for the creation of panels suitable for antigenic profiling. Discussion: Cross-protection between vaccine and field strains should mainly rely on neutralising sites; then, antigenic profiling obtained with neutralising MAbs is more likely to predict the level of cross-protection. In order to complete the characterization of the new MAbs and verify whether they sufficiently cover the main antigenic sites, mapping of epitopes target of the neutralising MAbs is in progress. ID nr. 3958 Brocchi° E, Grazioli° S, Pezzoni° G Evaluation of profiling ELISA for antibodies to non structural proteins of foot-and-mouth disease virus for DIVA-serology The global control of IMD tools, ideas and ideals : report : European Commission for the Control of Foot-and Mouth Disease, Session of the Research Group of the Standing Technical Committee : 14-17 October 2008 Erice, Italy / [s.l. : Food and Agriculture Organization of the United Nations, 2008]. - p 84 Session of the Research Group of the Standing Technical Committee of the European Commission for the Control of Foot-and-Mouth Disease : Erice, Italy : 14-17 October 2008) Project SSPE-CT-2003-503603 - Improvement of foot and mouth disease control by ethically acceptable methots based on scientifically validated assays and new knowledge on FMD vaccines, including the impact of vaccination (FMD-IMPROCON). - De Clercq Dr. Kris - UO - CE - 2003 - 2399907,00 EUR - 01/01/2004 0.00.00 - 31/12/2008 0.00.00 - 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I PRC99004 - Development and validation of innovating serological methods for the differentiation of vaccinated from FMD-virus infected animals based on the use of multiple non-structural antigens Brocchi Dr.ssa Emiliana - Solo - MINSAN - 1999 - 16/08/2000 0.00.00 - 15/08/2002 0.00.00 - Pag. 90 di 300 31/08/2011 142524000,00 LIT 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I First author Brocchi, Emiliana Introduction: The vaccinate-to-live policy for Foot-and-mouth Disease (FMD) is based on the availability of validated screening assays to differentiate vaccinated from infected animals based on the detection of antibodies to FMDV non structural proteins (NSP). The need of confirmatory tests for NSP-serology has encouraged this study for the determination of serum profiles against multiple NSP. Materials and methods: Indirect ELISAs for the measurement of antibodies to the NSP 3A, 3B and 3D of FMDV were developed; for 3A and 3D a specific monoclonal antibody was used to trap the respective recombinant antigen. Diagnostic performances were studied using known sera derived from experimental cattle with a know FMD status. Data were analysed in comparison with results of a validated 3ABC-trapping ELISA. Results: Early seroconversions against 3A, 3B and 3ABC were similar, while antibodies to 3D occurred two days earlier; however, antibodies to 3B were low or not detectable in few animals. Duration of antibodies was evaluated up to 400 days after infection: results showed that antibodies detected by the 3ABC-ELISA were the most persistent, followed by antibodies detected by 3A-ELISA, while antibodies detected by 3B- and 3D-ELISA decayed more rapidly. Specificity for 3A-ELISA was 98.3%, sensitivity reached 100% in infected cattle and 83% in cattle that were vaccinated prior to infection. These sensitivity estimates are similar to those found for the validated 3ABCtrapping ELISA, consistently with the good correlation observed between the two tests. The specificity for 3BELISA reached 99%, whilst sensitivity was significantly lower in both categories of infected (75%) and vaccinated/infected (72%) cattle, possibly due to either “3B-nonresponder” cattle or to a faster decay of antibodies to 3B. Further research is needed to improve sensitivity and specificity of the 3D-trapping ELISA. Conclusions: 3A and 3B-ELISA may be considered as prototype NSP-ELISAs useful for NSP-Ab profiling. They do not reach individually the diagnostic performance of the 3ABC-ELISA; however, combined in a “profiling test” comprising multiple antigens, they may have interesting applications, including a potential use as confirmatory system. ID nr. 3959 Grazioli° S, Brocchi° E Mapping of linear antigenic sites of the non structural protein 3D of foot-and-mouth disease relevant for the recognition of an infection status The global control of IMD tools, ideas and ideals : Report. European Commission for the Control of Foot-and Mouth Disease Session of the Research Group of the Standing Technical Committee : 14-17 October 2008 Erice, Italy / [s.l. : Food and Agriculture Organization of the United Nations, 2008]. - p 91 Session of the Research Group of the Standing Technical Committee of the European Commission for the Control of Foot-and-Mouth Disease : Erice, Italy : 14-17 October 2008) Project SSPE-CT-2003-503603 - Improvement of foot and mouth disease control by ethically acceptable methots based on scientifically validated assays and new knowledge on FMD vaccines, including the impact of vaccination (FMD-IMPROCON). - De Clercq Dr. Kris - UO - CE - 2003 - 2399907,00 EUR - 01/01/2004 0.00.00 - 31/12/2008 0.00.00 - 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I PRC99004 - Development and validation of innovating serological methods for the differentiation of vaccinated from FMD-virus infected animals based on the use of multiple non-structural antigens Brocchi Dr.ssa Emiliana - Solo - MINSAN - 1999 - 16/08/2000 0.00.00 - 15/08/2002 0.00.00 142524000,00 LIT 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I PRF2006302 - Development of innovative technologies for the diagnosis of infectious diseases of animals - Patta Cristina - UO - MINSAN - 2006 - 01/02/2008 0.00.00 - 30/06/2011 0.00.00 1664000,00 EUR - 1 - H2 - Reparto di Biologia Molecolare - Brocchi Dr.ssa Emiliana - I First author Grazioli, Santina Introduction: The identification of FMDV-infected animals, regardless their vaccination status, is based on the detection of antibodies to non structural proteins (NSP) of the virus, which are produced only after active viral replication. In addition to the polypeptides 3ABC (with its derivative products), 3D is a highly immunogenic NSP and ELISA assays using these antigens as recombinant proteins showed adequate fitness for purpose. An improved knowledge of the antigenic structure of NSPs and of the immune response of infected animals Pag. 91 di 300 31/08/2011 against NSPs could generate new perspectives for the differential diagnosis between infection and vaccination. This study describes the linear antigenic map of 3D, detected by pepscanning analyses of convalescent sera and monoclonal antibodies. Materials and methods: Peptide scanning analyses were performed using 20-mer synthetic peptides (48 peptides) overlapping in 10 amino acids (aa), matching the sequence of 3D. Twenty-nine sera from FMD-convalescent animals (cattle and pigs) and 49 monoclonal antibodies (MAbs) raised against 3D were tested with each peptide in an indirect ELISA. Results: The immune response against 3D is restricted towards the N-terminal third of the protein. Regions recognised by convalescent sera mostly overlap regions target of anti-3D MAbs. Two regions, one spanning from a position 8 to 38 and another shorter one, around position 58, are recognised by the majority of FMD-convalescent animals and are also target sites for a few MAbs. The sequence flanking residue 168 is a further immunogenic region for FMDsusceptible species but is not recognised by any MAb, whilst is the region spanning from residue 128 to 143 reactive with the majority of MAbs. Conclusions: Immunodominant regions have been identified in the 3D sequence, recognized by both FMD post-infection sera and anti-3D MAbs, corresponding to discrete intermitted sequences, all comprised within the N-terminal third of the polypeptide. MAbs specific for these epitopes represent suited tools to develop competitive assaysfor the measurement of antibody to 3D, while synthetic peptides matching the immunodominant regions might substitute the whole protein in diagnostic assays. ID nr. 3960 Martín-Acebes MA, González-Magaldi M, Rosas MF, Borrego B, Brocchi° E, ArmasPortela R, Sobrino F Subcellular distribution of swine vesicular disease virus proteins and alterations induced in infected cells: a comparative study with foot-and-mouth disease virus and vesicular stomatitis virus Virology. - Vol. 374 ( 2008). - p 432-433. - 79 bib ref Impact factor: 3,765 Project PRC2002007 - Improvement of SVD diagnosis: identification and neutralization of swine enteroviruses affecting SVD virus isolation in tissue cultures. - Brocchi Dr.ssa Emiliana - Capofila MINSAN - 2002 - 208749,00 EUR - 15/04/2004 0.00.00 - 31/12/2006 0.00.00 - 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I 2 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I 3 - IZSVE - Nardelli Dr. Stefano - E 4 - ISS - Tollis Dr.ssa Maria - E The intracellular distribution of swine vesicular disease virus (SVDV) proteins and the induced reorganization of endomembranes in IBRS-2 cells were analyzed. Fluorescence to new SVDV capsids appeared first upon infection, concentrated in perinuclear circular structures and colocalized to dsRNA. As in foot-and-mouth disease virus (FMDV)-infected cells, a vesicular pattern was predominantly found in later stages of SVDV capsid morphogenesis that colocalized with those of non-structural proteins 2C, 2BC and 3A. These results suggest that assembly of capsid proteins is associated to the replication complex. Confocal microscopy showed a decreased fluorescence to ER markers (calreticulin and protein disulfide isomerase), and disorganization of cis-Golgi gp74 and trans-Golgi caveolin-1 markers in SVDV- and FMDV-, but not in vesicular stomatitis virus (VSV)-infected cells. Electron microscopy of SVDV-infected cells at an early stage of infection revealed fragmented ER cisternae with expanded lumen and accumulation of large Golgi vesicles, suggesting alterations of vesicle traffic through Golgi compartments. At this early stage, FMDV induced different patterns of ER fragmentation and Golgi alterations. At later stages of SVDV cytopathology, cells showed a completely vacuolated cytoplasm containing vesicles of different sizes. Cell treatment with brefeldin A, which disrupts the Golgi complex, reduced SVDV (approximately 5 log) and VSV (approximately 4 log) titers, but did not affect FMDV growth. Thus, three viruses, which share target tissues and clinical signs in natural hosts, induce different intracellular effects in cultured cells. ID nr. 3961 Canelli° E, Lavazza° A, Barbieri° I, Moreno° AM, Sozzi° E, Lelli° D, Cordioli° P Pag. 92 di 300 31/08/2011 Prevalence of subtypes 1.1 and 1.2 within BHV1 strains isolated since 2002 in Northern Italy: antigenic characterization and genetic analysis 3th ESVV Veterinary Herpesvirus Symposium, April 22-24, 2009 Greifswald - Insel Riems / [s.n. : s.l., 2009]. ESVV Veterinary Herpesvirus Symposium (3th : Greifswald - Insel Riems : April 22-24, 2009) First author Canelli, Elena Bovine herpes virus type 1 (BHV-1) is wídespread and it causes respiratory and reproductive diseases? in cattle, but also other less frequent clinical signs. BHV-1 can be classified into two main subtypes: 1.1 is responsible for the respiratory disease and 1.2 that is mainly associated with genital infections and further divided into 1.2 a and b. During a seven years period, BHV-1 strains were mostly isolated from respiratory samples, out of the overall number of samples obtained from either genital or respiratory tracts of bovines from Northern Italy herds submitted to routine laboratory examination. Thereafter, 45 BHV-1 isolates were antigenically and genetically characterized and the prevalence of the two subtypes in the analyzed area was evatuated. BHV-1 strains isolated were typed by using an immunoperoxidase reaction (IP) based on two different panels of monoclonal antibodies (MAbs), previously developed and identified as specific only for the BHV-1 type. The MAbs panel 1 (1C11; 4G8) is specific for the sole BHV-1.1 subtype, while the other panel (1D6; 2610; 2133) detects both subtypes. The IP showed that al[ analyzed strains were BHV-1.1. Genomic characterization of the strains was done by sequencing and phylogenetic analysis. The amplification reaction was made with a pair of primers targeting the gl encoding gene. PCR products were sequenced and the obtained sequences were analyzed and compared with others from representative reference and field strains. Consequently, the Northern Italian isolates were grouped with the Colorado reference strain of BHV-1.1 and showed high percentages of homology (higher than 99.4%). The genetic data were in total agreement with the IP results and underlined that the BHV-1.1 subtype was prevalent in the analyzed area. These findings correlated well with the results of previous studies conducted in the same area on strains isolated in the 8090s and in other countries (Ireland and UK), but they differed from those obtained in Australia and New Zealand. Moreover the genetic analysis remarked that the gl showed a high degree of DNA homology among BHV-1 strains and that there were no genomic variations in the gl region during the years. In conclusion, the obtained data could help in finding out more correct targets for the improvement of BHV-1 diagnosis and for the development of more specific vaccines that can be efficiently applied in controt programs. ID nr. 3962 Rodriguez-Sanchez B, Sanchez-Vizcaino JM, Uttenthal A, Rasmussen TB, Hakhverdyan M, King DP, Ferris NP, Ebert K, Reid SM, Kiss I, Brocchi° E, Cordioli° P, Hjerner B, McMenamy M, McKillen J, Ahmed JS, Belak S Improved diagnosis for nine viral diseases considered as notifiable by the World Organization for Animal Health Transboundary Emerg Dis. - Vol. 55 ( 2008). - p 215-225. - 38 bib ref Impact factor: 0,702 Project 2003-SSP-3-513645 - New and emerging technologies: improved laboratory and on-site detection of oie list a viruses in animals and animal products (LAB-ON.SITE) - Belak Dr. Sandor - UO - CE 2004 - 1500000,00 EUR - 01/11/2004 0.00.00 - 31/07/2008 0.00.00 - 7 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I Nine viral diseases included in the World Organization for Animal Health list of notifiable diseases (former list A) were chosen for their contagiousness and high capacity of spreading to improve their diagnosis using new and emerging technologies. All the selected diseases -- foot-and-mouth disease, swine vesicular disease, vesicular stomatitis, classical swine fever, African swine fever, bluetongue, African horse sickness, Newcastle disease and highly pathogenic avian influenza -- are considered as transboundary diseases, which detection causes the prohibition of livestock exportation, and, thus, it leads to high economical losses. The applied diagnostic techniques can fall into two categories: (i) nucleic-acid detection, including padlock probes, realtime PCR with TaqMan, minor groove binding probes and fluorescence energy transfer reaction probes, isothermal amplification like the Cleavase/Invader assay or the loop-mediated amplification technology and the development of rapid kits for 'mobile' PCR and (ii) antigen-antibody detection systems like simplified and Pag. 93 di 300 31/08/2011 more sensitive ELISA tests. Besides, internal controls have been improved for nucleic acid-detecting methods by using an RNA plant virus--Cowpea Mosaic Virus--to ensure the stability of the RNA used as a positive control in diagnostic real-time RT-PCR assays. The development of these diagnosis techniques has required the joint efforts of a European consortium in which nine diagnostic laboratories and an SME who have collaborated since 2004 within the European Union-funded Lab-on-site project. The results obtained are shown in this paper. ID nr. 3963 Bano L, Anniballi F, Delibato E, De_Medici D, Agnoletti F, Cocchi M, Drigo I, Magistrali C, Fontana° MC, Merialdi° G, Arossa C, Fenicia L Avian botulism in Italy: application of a duplex PCR assay as a useful tool for the isolation of neurotoxigenic strains Congress "Clostridium botulinum : epidemiology, diagnosis, genetics, control and prevention" : 16-19 June 2008 / [s.l : s.n, 2008]. - p 66 Congress "Clostridium botulinum : epidemiology, diagnosis, genetics, control and prevention" : Helsinki, Filand : 16-19 June 2008) Avian botulism is a paralytic and often fatal disease of wild and farming birds occurring worldwide and caused by Clostridium botulinum type C and D. The disease is often diagnosed only on clinical and epidemiological features because of the difficulty of laboratory confirmation. Particularly, the need to isolate the toxigenic strains in order to produce an auto-vaccine, is a hard step depending on the frequent loose of the gene encoding the neurotoxin. Avian botulism has been documented also in Italy but, due to the lack of a specific surveillance system on animal botulism, the epidemiological and clinical data are not already systematically collected. We reported a recent experience on repeated outbreaks of avian botulism occurred in the North– East of Italy. A duplex PCR for bont/C and bont/D genes, together with Internal Amplification Control (IAC), was optimised and successfully utilized for the laboratory confirmation of the outbreak and to facilitate the isolation of the neurotoxigenic strain used to produce the autovaccine. The IAC was included in the PCR protocol to avoid false negative results due to the lack of the reaction caused by inhibitory substances. It is also discussed a project to organize in Italy a surveillance system, in collaboration with the Italian Ministry of Health, the National Reference Center for Botulism at the ISS, state veterinary diagnostic laboratories (IZS) and other stakeholders to collect all epidemiological, clinical and microbiological data connected with animal botulism. ID nr. 3964 Amadori° M Physiological response and constitutive expression of interferons : roles and functions New research on innate immunity / Mathis Durand and Clara V. Morel, editors. - New York : Nova Science Publischers, Inc, c2008. - p 1-11. - 58 bib ref First author Amadori, Massimo Constitutive expression of type I interferon (IFN) has been convincingly demonstrated in lymphoid and nonlymphoid tissues. This finding is a major challenge to the traditional view depicting IFNs as fundamental antiviral cytokines with other accessory properties. On the contrary, there is strong evidence of a physiological IFN response, probably linked to a default anti-inflammatory control action in tissues. This is diverted by microbial infections to pro-inflammatory effector functions in the framework of the innate immune response. Thus, constitutive expression of type I IFNs should be set into an alternative conceptual framework, recognizing these cytokines as homeostatic agents with a steady-state role under health conditions. The coexistence in peripheral blood mononuclear ceils of pigs of type 1 and type II (y) IFN outlines a novel scenario, probably related to the host's need for a fine tuning of the inflammatory and/or immune response to substantial changes of the external milieau. Pag. 94 di 300 31/08/2011 ID nr. 3965 Canelli° E, Luppi° A, Fallacara° C, Sozzi° E, Lelli° D, Moreno_Martin° M, Cordioli° P Genetic characterization of bovine viral diarrhoea viruses isolated from cattle in Northern Italy during the 1999-2007 period 7th ESVV pestivirus symposium, Uppsala Sweden 16-19 September 2008 / [s.n. : s.l., 2008]. - p 179. - 5 bib ref ESVV pestivirus symposium (7th : Uppsala, Sweden : September 16-19, 2008) Project PRC2008016 - An investigation into prevalence of Pestivirus infection in cattle and swine herds. Sozzi Dr.ssa Enrica - Capofila - MINSAN - 2008 - 70000,00 EUR - 01/09/2009 0.00.00 31/08/2011 0.00.00 - 1 - G1 - Reparto di Virologia e Sierologia Specializzata - Sozzi Dr.ssa Enrica - I 2 - IZSUM - De Mia Dr. Gian Mario - E First author Canelli, Elena Bovine viral diarrhoea virus (BVDV) is a Pestivirus which is cause of significant economic losses in cattle farming. Only 2 distinct genotypes (BVDV-1 and BVDV-2) are recognized and moreover BVDV-1, analysed in 5'UTR, comprises, by now, 15 subgroups (from a to o) [4] and BVDV-2 includes subtypes a and b. The aim of this study is the subtyping (by sequencing and phylogenetic analysis) of a panel of BVDVs isolated by our laboratory from 1999 to 2007, in order to find out the distribution of the isolated strains, the most prevalent subgroups, how recent viruses compare with isolates obtained before and to confront the viruses with others from Italy and Europe. Methods A panel of 115 samples, preventively tested and found positive to BVDV by isolation on REB celis (bovine kidney celi), A panel of 115 samples, preventively tested and found positive to BVDV by isolation on REB celis (bovine kidney celi), were then directly analyzed using RT-PCR for amplification of a fragment of the 5'-UTR of BVDV, without passages on celi culture. The primer pair used, BE-B2, targets the 5'UTR, in highly conserved regions of BVDV [2]. They were chosen because of their ability to differentiate BVDV from other Pestivirus and to determine the genotype of isolates [2]. The PCR products were sequenced after purification using the same primers of identificative PCR and phylogenetically analysed. Results Most BVDVs analyzed were classified as genotype 1 and belong to 9 subgroups according to nomenclature proposed by Nagai et al, 2008. The two groups more represented are BVDV e group (35) and b group (40). Ali the BVDV-1 b strains create a homogenous group, while BVDV-1 e strains form three separate genetic groups. The homology among these three groups is around 91-92%, lower than percentages of similarity between strains belonging to each group (95-97%, 96.5-98.8% and 97% respectively). Other isolates are grouping as BVDV-1 a, d, f and h (6, 9, 6 and 6 isolates respectively), only 2 as BVDV-1 g and other 2 as BVDV-1 k. A small group of 5 isolates is lowly genetically correlated to all other genetic subgroups. Strains of this group showed a high sequence identity between each other (98-99%). No isolates grouped in BVDV-1 c, i, j, m, n and o. Only 4 BVDV type 2 were detected (3 BVDV-2 b and 1 BVDV-2 a). The phylogenetic tree reported below was constructed from the 5'UTR sequences used. Sequences of field viruses analyzed are compared with sequences of reference strains or strains belonging to the on line GenBank Conclusions The analysis of data obtained, shows that 9 subgroups within BVDV-1 are circulating in the analysed area, indicating a high level of genetic heterology. BVDV-1 b and 1e are the most frequent subtypes isolated. On the basis of our sequence comparison results, the group e could be further divided into three clusters, labelled in this work, for clarity, le1, 1e2 and 1e3, (see figure). Although, these results confirm partly previous Italian outcomes [1, 3], demonstrating that regional differences in prevailing types do not exist or are not significant. In this work we describe for the first time two strains belonging to group 1 k, never described in Italy before and we confirm that the groups BVDV-1 a and g have been present in Italy from 2000, according to other studies [3]. In our study a group is divergent from all others and could represent a further new group, or it could belong to the group BVDV-11, previously reported by Jackova et al. [5]. Since we could not find sequences of BVDV-11 in the database, further phylogenetic analysis containing these isolates was not possible. The low number of BVDV-2 isolates is coherent with the European tendency and the sporadic Italian occurrence. ID nr. 3966 Cosciani_Cunico° E, Bonometti° E, Finazzi° G Pag. 95 di 300 31/08/2011 Validation of Listeria predictive growth model with italian meat product The 21st international ICFMH symposium : Evolving microbial food quality and safety : 1-4 September, 2008 Aberdeen, Scotland : programme and abstract book / [s.l. : s.n., 2008]. - p 212 - 3 bib ref International ICFMH symposium (21st : Aberdeen, Scotland : 1-4 September, 2008) Project RELOPATABIODEC - Bio-decontanimation tools and methods applied to food firms - Boni Dr. Paolo - Capofila - REGIONE - 2007 - 285064,92 EUR - 01/10/2007 0.00.00 - 30/09/2010 0.00.00 - 1 I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 2 - Gruppo Impresa Finance srl - Tabladini Dr. Marco - E First author Cosciani_Cunico, Elena Zampone is a typical Italian food product made with minced pork meat and fat. It is not an RTE food; the precooked slices eaten without or after insufficient heat treatment, is potentially a risk for the consumers. In this paper, the ability of L.monocytogens to grow in Zampone at refrigeration and abuse temperatures was studied. Three strains of L.monocytogenes were spread onto slices of pre-cooked Zampone in the concentrations of ca 10^3 cfu/ml. The contaminated meat slices were then vacuum packed and stored a 4-1015-20°C. The growth of the pathogen was observed by planing it on selective medium at regular intervals. The samplings were carried out in duplicate: The growth rates were calculated using the model of Baranyi and Roberts (1994). In pre-cooked Zampone, L.monocytogenes grew at each used temperature values; the accuracy of the predictive model was of 1.36 (Baranyi et al.1999). The discrepancy between the predictive model and the experimental data was in the range of what was previously described in literature (Pin et al. 1999). Since Zampone represents a good substrate for L.monocytogenes, to consume this meat without following the label instruction could be a risk. ID nr. 3967 Daminelli° P, Monastero° P, Finazzi° G Techniques for rapid pathogens detection raw milk The 21st international ICFMH symposium : Evolving microbial food quality and safety : 1-4 September, 2008 Arbeen, Scotland : programme and abstract book / [s.l. : s.n., 2008]. - p 248 - 1 bib ref International ICFMH symposium (21st : Arbeen, Scotland : 1-4 September, 2008) Project PRC2005017 - Field surveys (processes and products) and activation of epidemiologic surveillance protocols of animal breeding for the data supply to the food safety information system - Boni Dr. Paolo - Solo - MINSAN - 2005 - 290000,00 EUR - 03/07/2006 0.00.00 - 02/07/2008 0.00.00 - 1 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 2 - I4 - Reparto produzioni zootecniche e sorveglianza epidemiologica degli allevamenti - Varisco Dr. Giorgio - I Recently in Italy the idea regarding "natural food" i very popular among consumers; consequently, according to Regulation EC No 853/2004, farm increase raw milk commercialisation through automatic dispenser (Bolzoni et al. 2007). Pathogens like Listeria monocytogenes, Salmonella spp., Campylobactercoli/jejuni, can be found in raw milk, so it is necessary to organize controls during production and distribution to ensure an adequate level) of food security for consumers. Lombardia Region is the most important land of Italy for number and quality of milk farmers, and so the Sanitary Authority organised a monitoring plan to verify sanitary condition of milk directly sold. Molecular biology methods were applied to obtain results quickly in order to allow raw milk trading; in particular was used specific real[ time PCR for detection of L. monocytoges and Salmonella spp., whereas Campylobacter coli/jejuni were detected by . traditional PCR technique. Microbiology methods were used only to confirm positive results obtained by PCR techniques. The sampling was made in two period: at first from September 2005 to May 2006, and then from January to August 2007. 1984 raw milk samples collected from 218 milk farms were analyzed by PCR (for all pathogens). The prevalence of pathogens in raw milk detected by PCR in the first period of sampling was 2,62% for L. monocytogenes, 1,60% for Salmonella spp., 0,29% for Campylobacter coli/jejuni. the second period the pathogens prevalence reduced for L. monocytogenes (0,28%) and Salmonella spp (0,70%) while increased for Campylobacter coli/jejuni (0,88%). Salmonella spp and L. monocytogenes were ìsolated with microbiology Pag. 96 di 300 31/08/2011 methods respectively only 1 and 5 times while in any time was isolated Campylobacter coli/jejuni. This results show that the use of PCR methods is very useful because it permits to detect microbiological hazard at low level, before it becomes critical for health consumers.. ID nr. 3968 Cosciani_Cunico° E, Bonometti° E, Finazzi° G, Daminelli° P Survival of Salmonella typhimurium in some italian meat products The 21st international ICFMH symposium : Evolving microbial food quality and safety : 1-4 September, 2008 Aberdeen, Scotland : programme and abstract book / [s.l. : s.n., 2008]. - p 436 - 2 bib ref International ICFMH symposium (21st : Aberdeen, Scotland : 1-4 September, 2008) Project RELOPATABIODEC - Bio-decontanimation tools and methods applied to food firms - Boni Dr. Paolo - Capofila - REGIONE - 2007 - 285064,92 EUR - 01/10/2007 0.00.00 - 30/09/2010 0.00.00 - 1 I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 2 - Gruppo Impresa Finance srl - Tabladini Dr. Marco - E First author Cosciani_Cunico, Elena Many of the most well-known Italian meat products are made from raw meat, in which Salmonella Typtimurium could be present as contaminant (European Rapid Alert System for Food and Feed, www.ec.europa.eul. In this study, spiced Salame, Salame alla cacciatora, Pancetta arrotolata, Coppa piacentina, were inoculated with high concentration of pathogen at the begínning of food processing. Behaviour of S.Typhimurium, temperature, pH, aw, controlling parameters profiles, during food processing and storage, was studied and the D values were calculated. Three different S.Typhimurium strains were propagated, the inoculum was collected at the fina) concentration of -10^8 cfu/ml and was spread into the minced raw meat or over the meat . surface (Hinkens et al. 19961. For each challenge tests, sampling was carried out in duplicate and enumerations were performed at regular intervals by plating food suspension onto selective medium. S.Typhimurium had decreased with a linear function depending on the rate of aw decreasing (Cosciani et al. 2005). In spiced Salame and Salame alla cacciatora, that are commercialized after 21 days of storage, the D value was, respectivety, 4 days and 15 hours with a standard error of 0.51, and 18 days and 7 hours with a SE of 0.32. Storage of Pancetta arrotolata is 50 days and S.Typhimurium D value in this product was 33 days and 10 hours with a SE of 0.28. Coppa piacentina is usually commercialized after 90 days of storage, and D value of Salmonella on the surface was 17 days and 8 hours with a SE of 0.61. The process parameters were conform of the commercia) product. Since the considered safe decrease of celi concentration was not always observed (USDA 2001, 66 FR 125901, we suggest that better control of the raw materials, the process parameters and the possible longer product storage are necessary in order to guarantee the safety of these products. ID nr. 3969 Finazzi° G, Daminelli° P, Cosciani° E, Bonometti° E Behaviour of Listeria monocytogenes in sliced mortadella stored at different temperatures in presence of sodium lactate The 21st international ICFMH symposium "Evolving microbial food quality and safety" : 1-4 September, 2008 Aberdeen, Scotland : programme and abstract book / [s.l. : s.n., 2008]. - p 437 - 2 bib ref International ICFMH symposium (21st : Aberdeen, Scotland : 1-4 September, 2008) First author Finazzi, Guido Listeria monocytogenes is one of the most important microbiological risks in ready to eat food such as Mortadella (Beumer et a1.1996), an Italian salami, known also as bologna, made with pork meat finely minced, combined with pork fat cubes and spices and than sacked and cooked at 70°C or more for several) hours. In this work two kind of Mortadella, regular and added with Sodium Lactate 3.5%, were surface contaminated with a suspension of three different strains of Listeria monocytogenes in order to obtain a final[ Pag. 97 di 300 31/08/2011 concentration of around 103-104 cfu/cmz (Glass, 2002). Different kinds of Mortadella were then sliced, packaged in ma condition and stored for 90 days at different temperatures 14, 10, 15 and 20°C) to value the behaviour of Listeria. In regular Mortadella, stored at 4°C, L.monocytogenes doesn't grow (SE 0.28), while in Mortadella added with sodium Lactate the pathogen died with a biphasic function with a D value in the first step of 22 days and 17 hours and a second phase occurring after 38 days in which Listeria population stabilizes (SE 0.22). At 10°C Listeria increases with a duplication time of 1 day and 17 hours (SE 0.23) reaching plateau phase after nearly 11 days, while in presence of sodium Lactate the pathogen decreases with a biphasic function with a D value in the first step of 5 days and 7 hours and after 7 days and 15 hours D becomes more than 97 days (SE 0.12). At 15°C Listeria increases with a duplication time of 18 hours ± 4 hours reaching plateau phase after nearly 9 days (SE 0.56), while in presence of sodium Lactate the pathogen population keeps the sure level during the storage period (SE 0.591. Final[y at 20°C the pathogen increases in both situation but in regular Mortadella the duplication time of Listeria is 8 hours ± 2 reaching' plateau phase after nearly 3 days (SE 0.43), while in presence of sodium Lactate the duplication time is 1 day and 17 hours and the plateau phase occurs after nearly 8 days (SE 0.46). After this trial is evident how the addiction of sodium Lactate during production of Mortadella is useful to inhibit Listeria monocytogenes at usual storage temperature, and to slow down pathogen replication in situations of thermal abuse. ID nr. 3971 Blasi G., Lanciotti M, Nardi S., Palombo B, Ferretti E, Di_Giacomo L, Verdecchia E, Finazzi° G, Pezzotti G Ciabuscolo : process and product standard evaluation : preliminary study AIVI Rivista dell’Associazione Italiana Veterinari Igienisti. - Vol. 1 ( 2008). - p 63-64. - 11 bib ref In this study, samples of "Ciabuscolo", a raw fermented meat product listed among the traditional products of the Marche Region, were collected from four meat processing plants and analysed to evaluate microbiological process and product's standards. ID nr. 3972 Daminelli° P, Finazzi° G, Bertasi° B, Losio° MN, Boni° P, Cosciani_Cunico E Food safety : veterinary inspection role in food plants Ind Aliment (Pinerolo). - Vol. 47 no 479 ( 2008). - p 384-389. - 9 bib ref Project PRC2006001 - Development and implementation of epidemiological surveillance and risk analysis for primary production and processing of typical area food - Boni Dr. Paolo - Solo - MINSAN - 2006 - 1131023,00 EUR - 02/07/2007 0.00.00 - 01/07/2010 0.00.00 - 1 - M6 - Sezione diagnostica provinciale di Mantova - Nigrelli Dr. Arrigo - I 2 - N1 - Sezione diagnostica provinciale di Bologna - Belletti Dr. Gian Luca - I 3 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 4 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I 5 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I First author Daminelli, Paolo Food safety is bosed on good knowledge of products and of productive process as well os explained in Europeon Community Legislation (Reg. CE 2073/2005 integrated by Reg. CE 1441/2007). Food Department of Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna edited guidelines to support of food business operators compliance with microbiological criterio and, ot the some time, to explain veterinary inspection role in food plants. ID nr. 3973 Pag. 98 di 300 31/08/2011 Finazzi° G, Daminelli° P, Bertasi° B, Monastero P, Boni° P, Cosciani_Cunico E Dynamic of several pathogens in artificially contaminated fresh and seasoned Caprino cheeses Ind Aliment (Pinerolo). - Vol. 47 no 484 ( 2008). - p 992-997. - 8 bib ref Project RELOPATABIODEC - Bio-decontanimation tools and methods applied to food firms - Boni Dr. Paolo - Capofila - REGIONE - 2007 - 285064,92 EUR - 01/10/2007 0.00.00 - 30/09/2010 0.00.00 - 1 I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 2 - Gruppo Impresa Finance srl - Tabladini Dr. Marco - E First author Finazzi, Guido The aim of this trial was to value the behaviour of some pathogens during the processing and ripening of Caprino, an Italian row goat milk cheese. Different groups of Caprino cheese were made: one as negative control) and other four were made contaminating the goat mille with suspensions of different strains of Salmonella yphimurium, Listeria monocytogenes, E. coli O157:H7 and toxigenic Stoph. aureus., with a concentration of nearly 108 cfu/mL each. The coagulation phase of milk, obtained to 20°-22°C far 24 hours, wasn't able to determine any effect on pathogens concentration, but ripening the cheese at 6°-8°C for 5-6 days, the combined action of low cheese pH and great amount of lactic bio-competitive flora was able to determine the rapid decrease of Salmonella (4-5 log) and of E. coli O157:H7 (1 logo), too. To obtain a decrease of L. monocytogenes population was necessary to extend ripening of the cheese far at least 2 weeks. Staph. aureus capobiliy to produce the toxin was demonstrated tilt the earlier phases of cheese processing. ID nr. 3974 Finazzi° G, Daminelli° P, Bonometti° E, Boni° P, Cosciani_Cunico E, Stroppa A Survival dynamic of Listeria monocytogenes in Grana Padano DOP grated cheese Ind Aliment (Pinerolo). - Vol. 47 no 480 ( 2008). - p 506-511. - 3 bib ref Project RELOPATABIODEC - Bio-decontanimation tools and methods applied to food firms - Boni Dr. Paolo - Capofila - REGIONE - 2007 - 285064,92 EUR - 01/10/2007 0.00.00 - 30/09/2010 0.00.00 - 1 I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 2 - Gruppo Impresa Finance srl - Tabladini Dr. Marco - E First author Finazzi, Guido In this challenge test Grana Padano DOP grated cheese was contaminated with a suspension of three different L. monocytogenes strains in order to value the pathogen population dynamic of different storage temperature (4°, 10°, 15° and 20'Q. Data observed were compared with theoretical growth curves calculated applying predictive microbiology models. At 4°C, ideal storage condition, Listeria slowly decreases while in the predictive model was expected it should increase beginning from 40'h day. At 10°C the pathogen population doesn't change while was predicted an increase beginning from 151 day. At 15° and 20°C Listeria increases but slower comparing to what expected. Grano Padano DOP grated cheese, a food with a high amount of lactic flora able to bio-compete with pathogens, doesn't support the growth of Listeria monocytogenes to ideal and at usual storage temperature, and is also able to oppose the microbial replication in situation of thermal abuse. ID nr. 3975 Finazzi° G, Daminelli° P, Monastero P, Boni° P, Cosciani_Cunico E, Aglietta A Dynamic of several pathogens on artificially contaminated Valtellina Bresaola PGI Ind Aliment (Pinerolo). - Vol. 47 no 477 ( 2008). - p 148-153. - 1 bib ref Project PRF2004201 - Food safety: risk grading systems and process changes toward high-safety products. - Boni Dr. Paolo - Capofila - MINSAN - 2004 - 239200,00 EUR - 01/04/2005 0.00.00 - 31/12/2006 Pag. 99 di 300 31/08/2011 0.00.00 - 1 - ISS: Centro Nazionale per la qualità degli alimenti e i rischi alimentari - De Medici Dr. Dario - E 2 - IZSLT: Reparto Microbilogia - Bilei Dr. Stefano - E 3 - IZSME: Laboratorio Alimenti - Bartoli Dr. Mario - E 4 - IZSPLV: Laboratorio Controllo alimenti - Decastelli Dr.ssa Lucia - E 5 - IZSUM: Area Tematica Alimenti - Cenci Dr. Telemaco - E 6 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 7 - IZSPB: Batteriologia Alimentare - Goffredo Dr.ssa Elisa - E 8 - IZSSA: Laboratorio Microbiologia latte e derivati - Fadda Dr. Antonio - E 9 - IZSSI - Santo Dr. Caracappa - E 10 - IZSVE: Laboratorio Batteriologia degli Alimenti - Mioni Dr. Renzo - E 11 - UNICAT: Istituto di Zootecnia - Ajmone Marsan Dr. Paolo - E First author Finazzi, Guido The aim of this trial was to evaluate the dynamic of the pathogen population, such as Salmonella typhimurium, L. monocytogenes and E. coli O157:H7, during the seasoning of traditional Valtellina Bresaola PGI. Different Bresaola were artificially contaminated on their surface after brine-solting with a 107 cfu/cm2 concentration of pathogens, and then socked and seasoned. Samples were token from the surface of each bresaola during the seasoning time of 5 weeks, and analysed to value the populations of pathogens. Salmonella decreased with o biphasic trend characterized by e first phase in which the decimal decreasing time (D( was 8 hours and 16 minutes, and a second phase in which D become 20 days and 11 hours. However, during the usual seasoning period, the decrease of Salmonella was equal] to 5 logarithms. E. coli O157:H7 decreased with a line or trend in which D was 8 days and 20 hours, and during the usual seasoning period, the decrease of the pathogen was equal to 4 logarithms. The population of L. monocytogenes decreased with a linear trend in which D was 30 days and 17 hours, and so during the usual seasoning period the decrease of the pathogen was less thon 2 logarithms. ID nr. 3976 Lelli° D, Moreno_Martin° A, Gamba° D, Canelli° E, Sozzi° E, Cordioli° P, Brocchi° E MAbs based platform for neuraminidase avian influenza viruses typing Second Annual meeting Epizone : "Need for speed" : 4,5 and 6 - June, 2008 Brescia, Italy : programme and abstracts / [s.l. : s. n., 2008]. - p 96. - 2 bib ref Annual meeting Epizone (2nd : Brescia, Italy : 4,5 and 6 - June, 2008) First author Lelli, Davide Avian Influenza (AI) is a disease of poultry diffused worldwide that negatively impacts poultry health and international trade of live animals and their products. Typing of both haemagglutinin (H) and neuraminidase (N) proteins is crucial to study evolution and epidemiology of Al viruses. The aim of this study is typing of AIVs using a Mabs based platform able to identify all the N subtypes. Materials and methods AIVs.106 samples of allantoic fluids infected with AIVs of 14 H (from 1 to 14) and 9 N subtypes were used. Several) AIVs representative for N1, N2, N3, N4, N7, N9 subtypes were titrated (EID50). Mabs. Mabs specific for 1-9 N were produced an screened as reported (1). Anti-N MAbs were further analysed in Ni assays versus AIVs of the nine N subtypes (2). ELISA. Sandwich ELISA for N typing were developed using the same or a combination of two different Mabs, specific for the required N subtype, as catcher and tracer. In order to valuate their analytical sensitivity, several ten fold dilution of the titrated strains were analyzed. Results Several hybridomas were obtained. Combinations of catching and conjugated MAbs specific for each N were identified on the basis of a wider spectrum of reactivity within homologous N subtypes evidenced by indirect and competitive ELISA. Ali the MAbs showed subtype-specific M activity. Analytical specificity. Ali 106 AIVs were tested simultaneously, and reacted specifically, exhibiting a strong signal only in the ELISA test for the corresponding N subtype. Analytical sensitivity. Serial dilutions of titrateci AIVs were tested. Considering the EID50, the detection limit for the N-typing ELISAs is calculated to be 105/5,5EID50/01ml. Discussion The rigorous specificity of the selected MAbs for all N subtypes combined with the capability to recognise all the viruses examined make the developed N-typing ELISAs appropriate for the rapid identification of AIVs isolated in allantoic fluids; however, analytical sensitivities are not proper for a direct diagnosis on biological samples. Pag. 100 di 300 31/08/2011 Great advantages compared with Ni assays derive from the simple and rapid ELISA procedure and from the use of MAbs, that ensure assays standardisation and reproducibility. ID nr. 3977 Martelli F, Toma S, Di_Bartolo I, Inglese N, Caprioli A, Ruggeri FM, Lelli° D, Bonci° M, Ostanello F Epidemiology and molecular characterization of hepatitis E virus (HEV) strains identified in italian pigs affected by different pathological conditions Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 257-266. - 27 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) In humans hepatitis E (HE) is an infectious viral disease with clinical and morphological features of acute hepatitis. The aetiological agent is the hepatitis E virus (HEV). Increasing evidence supports the hypothesis that HE is an emerging zoonotic disease, and that pigs are the main animal reservoir of the infection Swine HEV was first identified in 1997 in USA and is now considered to be widespread in pig herds all over the world. In general HEV in pigs seems to be sub-clinical, although some studies have put in evidence a possible correlation of the infection with liver damages. Moreover its possible interaction with other pig pathogens such as porcine PCV2 and PRRSV has still to be fully clarified. In this study we assessed, using a nested-RT-PCR, the HEV prevalence in 137 pigs of 2-4 months of age from 45 different Italian herds and affected by different pathological conditions, finding that HEV infection is largely widespread in Italian pigs (29.9% prevalence). We also performed an evaluation of possible risk factors related to the infection, finding no statistically significant correlations between HEV positivity and herd typology or presence of concomitant pathological conditions and coinfections with PRRSV or PCV2. However, the HEV positivity was significantly higher in animals between 80-120 days of age than in pigs <80 days of age (20%). We also performed the molecular characterization of the identified strains, finding that all of them belonged to genotype 3 and were similar to other European swine and humans strains. ID nr. 3978 Ponzoni M, Ferreri AJM, Guidoboni M, Lettini AA, Cangi MG, Pasini E, Sacchi L, Pecciarini L, Grassi S, Dal_Cin E, Stefano R, Magnino° S, Dolcetti R, Doglioni C Chlamydia infection and lymphomas : association beyond ocular adnexal lymphomas highlighted by multiple detection methods Clin Cancer Res. - Vol. 14 no 18 ( 2008). - p 5794-5800. - 26 bib ref Impact factor: 6,250 Chlamydia psittaci (Cp) has been associated to ocular adnexal lymphomas (OAL) with variable geographic distribution. Herein, we used multiple Chlamydia detection tools to identify Cp elementary bodies-containing cell and to assess Cp prevalence in both nodal and extranodal lymphomas. Experimental Design: TETR-PCR, immunohistochemistry, immunofluorescence, electron microscopy, and laser-capture microdissection were done in 35 OALs to define their effect in Chlamydia detection and, moreover, to identify the Cp cellular carrier. Cp prevalence was screened by TETR-PCR in 205 extraorbital lymphomas and 135 nonneoplasticc controls. Results: Twenty-six (74%) OALs were associated with Cp infection: immunohistochemistry, immunofluorescence, and laser-capture microdissection-assisted PCR showed that monocytes/macrophages were the Cp carriers; electron microscopy showed the presence of intact Cp elementary bodies into these cells. Immunohistochemistry and TETR-PCR showed a 70%concordance rate (P = 0.001). Cp DNA was equally prevalent in non-OAL, nodal, and extranodal lymphomas: among the latter, it was more common in diffuse large B-cell lymphomas of the skin (P = 0.03) and Waldeyer's ring. Conclusions: This multiparametric approach shows, for the first time, that monocytes/macrophages are the carriers of Cp, Cp seems preferentially associated with lymphomas arising in organs primarily exposed to antigens. The clinical implications of these findings deserve to be prospectively investigated. Pag. 101 di 300 31/08/2011 ID nr. 3979 Ferreri AJM, Dolcetti R, Dognini GP, Malabarba L, Vicari° N, Pasini E, Ponzoni M, Cangi MG, Pecciarini L, Resti AG, Doglioni C, Rossini S, Magnino° S Chlamydophila psittaci is viable and infectious in the conjunctiva and peripheral blood of patients with ocular adnexal lymphoma : results of a single-center prospective case-control study Int J Cancer. - Vol. 123 ( 2008). - p 1089-1093. - 19 bib ref Impact factor: 4,555 Ocular adnexal MALT lymphoma (OAML) is linked to Chlamydophila psittaci (Cp) infection. Viability and infectivity of Cp, demonstrated by growth in culture, has not been yet investigated in these patients. We conducted a single-center prospective case-control study to assess the prevalence, viability and infectivity of Cp in 20 OAML patients and 42 blood donors registered in a 6-month period. The presence of Cp in conjunctival swabs and peripheral blood mononuclear cells CPBMC) of patients and donors was assessed by TETR-PCR and in vitro cultures. From an epidemiological] point of view, OAML patients often resided in rural areas, and reported a history of chronic conjunctivitis and prolonged contact with household animals (85% vs. 38% of donors; p = 0.00001). Cp was detected in lymphoma tissue in 15 (75%) patients. Cp DNA was detected in conjunctival swabs and/or PBMC from 10 C50%) patients and in PBMC from 1 (2%) donor (p = 0.01). Viability and infectivity of Cp, demonstrated by growth in culture, were confirmed in conjunctival swabs and/or PBMC from 5 (25%) patients, but not in donors (p = 0.002). This prospective study demonstrates, for the first time, that Cp present in the conjunctiva and PBMC of OAML patients is capable to grow and be isolated in cell cultures. Cp infection is common in OAML patients and exceptional in blood donors. Epidemiological data of OAML patients (prolonged contact with household animals and chronic conjunctivitis) are consistent with Cp exposure risk. ID nr. 3980 Epis S, Sassera D, Beninati T, Lo N, Beati L, Piesman J, Rinaldi L, Mcoy KD, Torina A, Sacchi L, Clementi E, Genchi M, Magnino° S, Bandi C Midichloria mitochondrii is widespread in hard ticks (Ixodidae) and resides in the mitochondria of phylogenetically diverse species Parasitology. - Vol. 135 ( 2008). - p 485-494. - 24 bib ref Impact factor: 2,081 The hard tick Ixodes ricinus (Ixodidae) is the sole animal thus far shown to harbour an intra-mitochondrial bacterium, which has recently been named Midichloria mitochondrii. The objectives of this work were (ii) to screen ixodid ticks for Midichloria-related bacteria and (ii) to determine whether these bacteria exploit the intra-mitochondrial niche in other tick species. Our main goal was to discover further models of this peculiar form of symbiosis. We have thus performed a PCR screening for Midichloria-related bacteria in samples of ixodid ticks collected in Italy, North America and Iceland. A total of 7 newly examined species from 5 genera were found positive for bacteria closely related to M. mitochondrii. Samples of the tick species Rhipicephalus bursa, found positive in the PCR screening, were analysed with transmission electron microscopy, which revealed the presence of bacteria both in the cytoplasm and in the mitochondria of the oocytes. There is thus evidence that bacteria invade mitochondria in at least 2 tick species. Phylogenetic analysis on the bacterial 16S rRNA gene sequences generated from positive specimens revealed that the bacteria form a monophyletic group within the order Rickettsiales. The phylogeny of Midichloria symbionts and related bacteria does not appear completely congruent with the phylogeny of the hosts. ID nr. 3981 Ferreri AJM, Dognini GP, Ponzoni M, Pecciarini L, Cangi MG, Santambrogio G, Resti AG, Pag. 102 di 300 31/08/2011 De_Conciliis C, Magnino° S, Pasini E, Vicari° N, Dolcetti R, Doglioni C Chlamydia psittaci-eradicating antibiotic therapy in patients with advanced-stage ocular adnexal MALT lymphoma Ann Oncol. - Vol. 19 no 1 ( 2008). - p 194-195. - 5 bib ref Impact factor: 4,875 ID nr. 3982 Laroucau K, Thierry S, Vorimore F, Blanco K, Kaleta E, Hoop R, Magnino° S, Vanrompay D, Sachse K, Myers GS, Bavoil PM, Vergnaud G, Pourcel C High resolution typing of Chlamydophila psittaci by multilocus VNTR analysis (MLVA) Infect Genet Evol. - Vol. 8 ( 2008). - p 171-181. - 23 bib ref Impact factor: 2,407 A multilocus VNTR analysis (MLVA) system for detection of tandem repeats across the whole genome of Chlamydophila psittaci has been developed. Twenty selected genetic loci were initially tested on 9 avian reference strains including representatives of all major serotypes (A to F). Thereafter, 8 loci were retained for a more complete study performed on over 150 C. psittaci isolates from different bird species and geographical origins. Comparative analysis of the MLVA results and those obtained from currently available methods including serotyping and/or ompA sequencing indicate that the MLVA system provides an additional level of discrimination, with 20 distinct patters identified to date. The newly developed MLVA system therefore provides a highly sensitive, high resolution test for the differentiation of C. psittaci isolates from different origins that is suitable for molecular epidemiological studies. ID nr. 3983 Yousef_Mohamad K, Roche SM, Myers G, Bavoil PM, Laroucau K, Magnino° S, Laurent S, Rasschaert D, Rodolakis A Preliminary phylogenetic identification of virulent Chlamydophila pecorum strains Infect Genet Evol. - Vol. 8 ( 2008). - p 764-771. - 52 bib ref Impact factor: 2,407 Chlamydophila pecorum is an obligate intracellular bacterium associated with different pathological conditions in ruminant, swine and koala, which is also found in the intestine of asymptomatic animals. A multi-virulence locus sequence typing (MVLST) system was developed using 19 C. pecorum strains (8 pathogenic and 11 non-pathogenic intestinal strains) isolated from ruminante of different geographical origins. To evaluate the ability of MVLST to distinguish the pathogenic from the non-pathogenic strains of C. pecorum, the sequences of 12 genes were analysed: 6 potential virulente genes (ompA, incA, incB, incC, mip and copN), 5 housekeepinggenes (recA, hemD, aroC, efp, gap), and the ORF663 gene encoding a hypothetical protein (HP) that includes a variant 15-nucleotides coding tandem repeat (CTR). MVLST provided high discriminatory power (100%) in allowing to distinguish 6 of 8 pathogenic strains in a single group, and overall more discriminatory than MLST targeting housekeeping genes. ompA was the most polymorphic gene and the phylogenetic tree based only on its sequence differentiated 4 groups with high bootstrap values. The number of CTRs (rich in serine, proline and lysine) in ORF663 detected in the pathogenic strains was generally lower than that found in the intestinal strains. MVLST appears to be a promising method for the differential identification of virulent C. pectorumstrains, and the ompA, incA and ORF663 genes appear to be good molecular markers for further epidemiological investigation of C. pecorum. ID nr. 3984 Magnino° S, Haag-Wackernagel D, Geigenfeind I, Helmecke S, Dovc A, PruknerRadovcic E, Residbegovic E, Ilieski V, Laroucau K, Donati M, Martinov S, Kaleta EF Pag. 103 di 300 31/08/2011 Chlamydial infections in feral pigeons in Europe : review of data and focus on public health implications Vet Microbiol. - Vol. 135 ( 2009). - p 54-67. - 109 bib ref Impact factor: 2,370 First author Magnino, Simone Feral pigeons (Columba livia domestica), which thrive in most European towns and cities, are commonly infected with the zoonotic bacterium Chlamydophila psittaci, the agent of psittacosis (also known as ornithosis) in humans. A number of surveys carried out over the last thirty years across Europe have detected high seropositivity values and high percentages of infection in feral pigeon populations. Overall, when considering data from 11 European countries, seropositivity values to C. psittaci in the sampled populationranged from 19.4% to 95.6%. In most surveys, the complement fixation test was used, and antibodies were detected in 19.4-66.3% of the samples, with a median of 46.1%. Indirect immunofluorescence and ELISA tests were employed less frequently, but led to the detection of higher percentages of seropositivity (23.7-67.7% and 35.9-95.6%, respect lively. Attempts to grow C. psittaci in cell culture or embryonated chicken eggs were successful in 2-42.3% and 0-57.1% of samples, respectively, antigen detection methods were positive in 2.3-40% of samples, while conventional PCR and real-time PCR using different genomic targets detected the organism in 3.4-50% of samples. Twenty-five C. psittaci isolates from pigeons were typed as ompA genotype B (n = 14), E (n = 10) and E/B (n=1). The huge increase of feral pigeon populations in Europe is a major cause of concern for the detrimental effect of pigeon droppings on environmental hygiene, in addition to the extensive damage due to the fouling of buildings and monuments. The most important pathogenic organism transmissible from feral pigeons to humans is C. psittaci, with 101 cases of disease reported in the literature. Exposure to C. psittaci-contaminated dust, direct contact with pigeons through handling and, to a lesser extent, through pigeon feeding have been identified as hazardous exposures in more than half of the human cases, while loose or transient contacts with feral pigeons have been mentioned in about 40% of the cases. Education initiatives as to the communication of a health risk resulting from contact with pigeons and pigeon excreta should primarily be targeted at individuals who may be exposed to C. psittaci-contaminated dust, such as demolition/construction workers. Recommendations to this category of workers include wearing protective clothes with hoods, boots, gloves and air filter face masks when removing pigeon faeces from roofs, garrets and buildings, especially if working indoors. Monitoring for C. psittaci infections in these workers over time should also be considered. Children should be warned not to handle sick or dead pigeons, and immunocompromised individuals should be advised to carefully limit their contact to feral pigeons. Culling of pigeons by shooting or poisoning is both unethical and ineffective as the place of the killed birds in the population is quickly filled by new juveniles or immigrating birds from neighbouring areas. Pigeon-deterring systems, such as nets and plastic or metal spikes applied to buildings and monuments will prevent their fouling, and the administration of contraceptive drugs may allow size regulation of the pigeon populations. Nevertheless, the measure that will ultimately lead to permanent reduction and will establish healthy sustainable populations is the restriction of indiscriminate feeding by pigeon lovers. The erection of dovecotes and artificial breeding facilities should be considered for providing shelter and a balanced diet to the birds, as well as a chance of interaction for pigeon lovers in a hygienically controlled environment. ID nr. 3985 Brocchi° E, Grazioli° S, Pezzoni° G, Borrè° A Confirmatory tests for Foot-and-Mouth disease DIVA serology based on profiling of antibodies to non structural proteins Second Annual meeting Epizone : "Need for speed" : 4,5 and 6 - June, 2008 Brescia, Italy : programme and abstracts / [s.l. : s. n., 2008]. - p 125. - 1 bib ref Annual meeting Epizone (2nd : Brescia, Italy : 4,5 and 6 - June, 2008) Project SSPE-CT-2003-503603 - Improvement of foot and mouth disease control by ethically acceptable methots based on scientifically validated assays and new knowledge on FMD vaccines, including the impact of vaccination (FMD-IMPROCON). - De Clercq Dr. Kris - UO - CE - 2003 - 2399907,00 EUR - 01/01/2004 0.00.00 - 31/12/2008 0.00.00 - 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I Pag. 104 di 300 31/08/2011 PRC99004 - Development and validation of innovating serological methods for the differentiation of vaccinated from FMD-virus infected animals based on the use of multiple non-structural antigens Brocchi Dr.ssa Emiliana - Solo - MINSAN - 1999 - 16/08/2000 0.00.00 - 15/08/2002 0.00.00 142524000,00 LIT 1 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I First author Brocchi, Emiliana The vaccinate-to-live policy for foot-and-mouth disease (FMD) is based on the availability of validated screening assays to differentiate vaccinated from infected animals based on the detection of antibodies to FMDV non structural proteins (NSP). The need of confirmatory tests for NSP-serology has encouraged this study for the determination of serum profiles against multiple NSP. Materials and Methods: Indirect ELISAs for the measurement of antibodies to the NSP 3A, 313 and 3D of FMDV were developed using monoclonal antibodies to trap the respective recombinant antigens. Diagnostic performances were studied using known sera derived from experimental cattle with a know FMD status. Data were analysed in comparison with results of a validated 3ABC-trapping ELISA (1). Results and discussion: Early seroconversions against 3A, 313 and 3ABC were similar, while antibodies to 3D occurred two days earlier; however, antibodies to 3B were low or not detectable in few animals. Duration of antibodies was evaluated up to 400 days alter infection: results showed that antibodies detected by the 3ABCELISA were the most persistent, followed by antibodies detected by 3A-ELISA, while antibodies detected by 313- and 3D-ELISA decayed more rapidly. Specificity for 3A-ELISA was 98.3%, sensitivity reached 100% in infected cattle and 83% in cattle that were vaccinated prior to infection. These sensitivity estimates are similar to those found for the validated 3ABC-trapping ELISA, consistently with the good correlation observed between the two tests. The specificity for 3B-ELISA reached 99%, whilst sensitivity was significantly lower in both categories of infected (75%) and vaccinated/infected (72%) cattle, possibly due to either "3B-nonresponder" cattle or to a faster decay of antibodies to 313. Further research is needed to improve sensitivity and specificity of the 3D-trapping ELISA. Conclusions: 3A- and 3B-ELISA may be considered as prototype NSP-ELISAs useful for NSP-Ab profiling. They do not reach individually the diagnostic performance of the 3ABC-ELISA; however, combined in a "profiling test" comprising multiple antigens, they may have interesting applications, included a potential use as confirmatory system. ID nr. 3987 Dottori° M, Bonilauri° P, Merialdi° G, Nigrelli° A, Martelli R Monitoring chronic pleuritis due to Actinobacillus pleuropneumoniae at slaughterhouse by a newly implemented scoring system 20th Internationl Pig Veterinary Society Congress IPVS 2008 : Durban, South Africa, 22-26 June 2008 : poster proceedings / [s.l : s.n, 2008]. - p 230. - 2 bib ref International Pig Veterinary Society Congress (IPVS) (20 : Durban, (South Africa) : 22-26 June 2008) First author Dottori, Michele The paper proposes a newly implemented grid to score CP lesions and shows the preliminiary result of its application in Italian pigs at slaughterhouse. ID nr. 3988 Rosignoli° C Respiratory disease in newly received feeder cattle: risk reduction strategies I° Congresso europeo SIVAR : Nuovi orizzonti per la veterinaria europea : salute, benessere animali e produzioni di qualità : New perspectives for european veterinary profession : animal health, welfare and quality productions : VeronaFiere 8-9 Febbraio 2008 / [s.l : s.n, 2008]. - p 52-56 Congresso europeo SIVAR (1 : VeronaFiere : 8-9 Febbraio 2008) First author Rosignoli, Carlo Pag. 105 di 300 31/08/2011 Bovine respiratory disease complex (BRDC) is caused by the pathogenic action of various micro-organisms (viruses, bacteria and mycoplasmas) but also, to a large extent, by the simultaneous presence of risk factors, such as environmental and management stress, that reduce respiratory defences or increase exposure to pathogens. In beef cattle fattening herds there are many risk factors for BRDC such as mixing animals from different origins, transport over large distances and reduced space for fattening process. These conditions explain why respiratory diseases occur mainly in the first four weeks after the arrival of animals, which is when the negative consequences of the main stressful events are concentrated. Strategies to reduce the risk of respiratory disease in newly received feeder cattle must consider three areas of action: the maintenance of disease resistance, minimisation of exposure to infectious agents and reduction of stress. In this paper we look at the critical phases of the productive process in order to control and reduce outbreaks of respiratory diseases in feeder cattle. ID nr. 3989 Losio° MN, Bertasi° B, D'Abrosca° F, Pavoni° E, Curatolo° M, Boni° P In vitro toxicology methods for the evaluation of the efficacy of functional food Ind Aliment (Pinerolo). - Vol. 47 no 482 ( 2008). - p 758-762 Project PRC2003004 - Evaluation of bio-toxigenicity in functional foods and food integrators for humans. Bertasi Dr.ssa Barbara - Solo - MINSAN - 2003 - 60000,00 EUR - 26/04/2004 0.00.00 25/10/2005 0.00.00 - 1 - L1 - Centro Substrati Cellulari - Bertasi Dr.ssa Barbara - I First author Losio, Marina Nadia “Food as benefic product" is a recent concept shared by science and consumere. Recently, it has been a relevant increase in the trading of food meant as well-being promoter. At present, European low has a shortage about the reguiation of food proposition as wellness proposer, but many parts of food trading and production are asking for new rules oble to protect the characteristics that define each ype of product. Cell culture and in vitro toxicology-alternative methods are important means to detect the activity of some specific molecules on the cellular behoviour, so they are the scientific tools to rely on for the proposition of bills directed to warrant the food sofety. On this bases, they will be described some possible cell culture applications and in vitro toxicology tests, to screen the most common properties of Iunctional foods such as probiotic activity, anti-oxidant and immunomodulating activty. ID nr. 3992 Bertasi° B, Agnelli° E, Pavoni° E, Daminelli° P, Boni° P Application of a Multiplex PCR for the detection of Escherichia coli O157:H7 in food Ind Aliment (Pinerolo). - Vol. 47 no 478 ( 2008). - p 276-280. - 19 bib ref First author Bertasi, Barbara Escherichia coli 0157:H7 is considered an emerging pathogen (WHO) and frequently responsible of serious clinical disease, as for example hemorrhagic colitis. In general infection risk is thought to be related to contominated food. It is therefore necessory to standardize and improve methods with high specificity and sensitivity, in order to control different type of food. In this paper it is described the set-up of a PCR technique with high sensitivity (limit of detection: 102 ufc/g) and specific for virulence and adherence of E. coli 0157: H7; the selected PCR was used for food screening to estimate the related real risk. ID nr. 3993 Bellini° S, Alborali° L, Bonazza V, Avisani° D, Zanardi° G Swine vesicular disease in Lombardy Region: diffusion in densely populated pig area Pag. 106 di 300 31/08/2011 Second Annual meeting Epizone : "Need for speed" : 4,5 and 6 - June, 2008 Brescia, Italy : programme and abstracts / [s.l. : s. n., 2008]. - p 79 Annual meeting Epizone (2nd : Brescia, Italy : 4,5 and 6 - June, 2008) Project EPIZONE - "Network of excellence for epizootic disease diagnosis and control - "EPIZONE". - Van Rijn dr. Piet - UO - CE - 2005 - 14000000,00 EUR - 01/06/2006 0.00.00 - 31/05/2011 0.00.00 17 - U3 - REPARTO AGENTI AD ALTA DIFFUSIONE E BIOTECNOLOGIE - Bellini Dr.ssa Silvia I First author Bellini, Silvia Swine vesicular disease (SVD) is a contagious disease of pigs caused by an Enterovirus of the Picornaviridae family. In Europe, SVD outbreaks have been steadily reported in Italy in the last decade, where surveillance and eradication activities are in piace. In the period 2006 - 2007 a recrudescence of SVD was recorded and the disease spread widely in the Italian Northern Regions. Lombardy, a region with high pig stoking density, was most affected. Even though SVD is considered to be moderately contagious, the 2006 - 2007 epidemic in Lombardy, compare to the previous ones (1989-1989, 2000, 2002), was characterized by a rapid disease spread. In fact, 53 outbreaks were detected and some 150.000 pigs were stamped out. The SVD outbreaks reported in Lombardy in the period 2006 - 2007 may be grouped in two epidemic periods. During the first one (November 2006 - February 2007) SVD spread among the farms according to the typical routes of transmission of the disease. On the contrary, in the second epidemic period (May 2007 - October 2007), the diseases showed an endemic trend in a small high-density area of the region. The main risk factor for outbreaks in this area, was proximity to a previous outbreak. To verify the pattern of SVD spread in highdensity-areas and to highlight the relevant risk factors, the epidemiological investigations and bio-security questionnaires carried out in the outbreaks were thoroughly evaluated. ID nr. 3994 Pisoni G, Locatelli C, Alborali° L, Rosignoli° C, Allodi S, Riccaboni P, Grieco V, Moroni P Outbreak of Nocardia neocaledoniensis mastitis in an italian dairy herd J Dairy Sci. - Vol. 91 ( 2008). - p 136-139. - 16 bib ref Impact factor: 2,361 Nocardia spp. are an uncommon cause of mastitis, and outbreaks have typically been reported in dairy farms with poor hygienic and management conditions. The outbreak described herein involved a dairy farm with 43 lactating cows that, after a long period with low bulk milk somatic cell counts «180,000 cells/mL), experienced an increasing incidente of clinical mastitis with bulk milk somatic celi counts greater than 300,000 cells/mL. Fifteen mastitic quarters milk samples from 9 dairy cows were found to be infected by a member of the genus Nocardia, as identified on the basis of selected phenotypic and chemotaxonomic characteristics. The isolates were confirmed as Nocardia neocaledoniensis by 16S rDNA gene sequencing. Average quarter milk somatic cell count for infected udders was 863,057 cells/mL, signíficantly greater than the average value in noninfected quarters (189,710 cells/mL). ID nr. 3996 Pavoni° E, Losio° N, Colombrita D, Foresti I, Caruso A, Suffredini E, Croci L Detection of Norovirus in stool samples of hospitalized patients with gastroenteritis Symposium “Current developments in food and environmental virology" : 9-11 October 2008, Pisa (Italy) / [s.l. : s.n., 2008]. - p 62 Symposium “Current developments in food and environmental virology" : Pisa (Italy) : 9-11 October 2008) Project ENVIRONET COST 929 - A European Network for Environmental and Food Virology (Environet) Cook Dr. Nigel - UO - CE - 2006 - 0,00 EUR - 21/09/2006 0.00.00 - 12/11/2010 0.00.00 - 18 I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Losio Dr.ssa Marina Nadia - I Pag. 107 di 300 31/08/2011 First author Pavoni, Enrico Norovirus (NoV) is one of the main causes of children and adults acute gastroenterttis worldwide. NoVs, belonging to the Caliciviridae family, are divided in five genogroups (GI io GV), based on sequence homologies in their RNAs. GI and Gli, that are the most commonly described in human infections, are further subdivided into more than 25 different genotypes. The ORF2 major capsid protein sequence can diverge by as much as 60% between genogroups and 20-30% between genotypes within a genogroup. Thís classification is in constant evolution with the discovery of new variant strains. Italy, unlike other countries, has no specific surveillance system for virai gastroenteritis then few epidemiological data are availabie regarding NoV gastroenteritis. Thz objective of this study was to evaiuate the involvement of NoVs in patients with gastroenteritis from different settiements (a Civil Hospital in Brescia and a Retirement Home in Ferrara). One hundred thirty three stool samples, negative for routine bacteriological tests, were analysed for norovirus presence first by ELISA (Oxoid) and then by molecular detection (conventional two round PCR and Real Time PCR). Circulating strains were characterized by sequencing of PCR ampiicons and identification through BLAST search and comparison through the European Foodborne Viruses Database. A total of sixty-three stool samples (47%) resulted positives for the presence of norovirus. The sequencing showed the presence of G11.4, Gll.b, G11.7 and GIA, among these GI1.4 being largely more frequent than the others.. ID nr. 3997 Suffredini C, Corrain C, Arcangeli G, Fasolato L, Manfrin G, Rossetti E, Biazzi E, Mioni R, Pavoni° MN, Losio° MN, Sanavio G, Croci L Occurrence of enteric viruses in shellfish and relation to climatic-environmental factors Lett Appl Microbiol. - Vol. 47 ( 2008). - p 467-474. - 50 bib ref Impact factor: 1,623 Aims: To investigate the presence of enteric viruses [hepatitis A (HAV) and norovirus (NoV)] in shellfish harvested from the deltaic area of the Po river in relation to environmental factors. Methods and Results: Fortnightly sampling of shellfish was carried out in two lagoon areas (category B production areas) and one sea area (category A). Environmental parameters in the lagoon and hydrometric level) of the tributary river were monitored throughout the sampling period. Samples (n = 120) were analysed for bacterial (E. coli and Salmonella) and viral (HAV and NoV) con termination; samples from category B areas were analysed before and after pure fiction treatment. All the samples were negative for HAV whereas 10 samples (8.3%), all harvested in the lagoon areas, were positive for NoV. Sequencing identified the strains as genotypes II.4 and II.b. None of the samples was found to be contaminated after depuration. Conclusions: The monitoring showed a low frequency of NoV presence; viral contamination, detected exclusively in shellfish collected from the deltaic area (category B), could be influenced by the flow of the tributary river. Significance and Impact of the Study: The data collected are useful for the design of targeted prevention strategies and for the modulation of control plansafter metereologicla events. ID nr. 3998 Gelmetti° D, Giudice C, Invernizzi° A, Bertoletti° I Bilateral ocular disgenesis in young deer (Cervus elaphus) Atti 5 congresso nazionale Associazione italiana di patologia veterinaria (AIPVet) : 15-16 Maggio 2008 Mondello (PA) / [s.l. : Associazione italiana di patologia veterinaria, 2008]. - p 55 Congresso nazionale AIPVet (5. : Mondello (PA) : 15-16 Maggio 2008) First author Gelmetti, Daniela A young male deer, about 3 day-old was found dead in Campodolcino (Sondrio-Italy). The animai was affected by bilateral microphthalmus (1.5 cm in diameter), diffuse corneal opacity, eyelid coloboma at the nasal cantus, conjunctival prolapse without conjunctival secretion. No other external gross alteration was detected and necropsy revealed no internal organs lesions. Bacteriological tests (perfonned ori lung, live, Pag. 108 di 300 31/08/2011 kidneys and spleen) and parasitological examination were all negative. Ocular globes were formalin fixed paraffin embedded. Histologically both eyes have similar alterations. A large dermoid cyst, composed by squamous epithelium, sebaceous glands and hair follicles, expanded anterior chamber and partially infiltrated and distorted iris stroma. A mass composed of spindle to stellate cells and small scattered tubules, embedded in a mixoid extracellular matrix, expanded vitreal chamber. Complete retinal detachment and corneal fibrosis and vascularization were also visible. Immunoassaying of vitreal mass (pan-cytokeratins, Vimentin, Gfap, NSE, MAP2, neurofilaments, alfa smooth muscle actin, S100) revealed both neural and mesenchymal elements. The presence of structures of different embryonal histogenesis was consistent with complex microphthalmia described in human medicine. ID nr. 3999 Marone P, Fabbi° M, Daffara S, Della Valle C, De_Vitis D, Mariani B, Brunetti e, Andreoli° G, Vicari° N The cat scratch disease: a rare zoonoses? XXXVII Congresso Nazionale Associazione Microbiolologi Clinici Italiani (AMCLI) : 5-8 Ottobre 2008 Stresa / [s.l. : Associazione Microbiolologi Clinici Italiani, 2008]. Congresso Nazionale Associazione Microbiolologi Clinici Italiani (AMCLI) (27 : Stresa : 5-8 Ottobre 2008) Project PRC2003013 - Development and application of diagnosis and therapy protocols for Cat Scratch Disease (CSD) in human and veterinary medicine, monitoring of disease prevalence in humans and of Bartonella henselae in Italian feline populations. - Fabbi Dr. Massimo - Capofila - MINSAN 2003 - 45000,00 EUR - 26/04/2004 0.00.00 - 25/10/2006 0.00.00 - 1 - M8 - Pavia - Fabbi Dr. Massimo - I 2 - IRCCS S. Matteo laboratorio di Batteriologia e Micologia - Area Infettivologica - Marone Dr. Piero - E Cat-scratch disease (CSD) is a zoonotic emerging disease caused by Bartonella henselae. Cat is the natural reservoir of the microorganism in which the infection is usually asintomatic. Over 8 months of investigation a total of 16 cases have been observed. The age of patients ranges from 5 to 75 years (in 10 cases <_ 20), 9 females and 7 males. In ali cases there was a lymphadenopathy (axillary 9, inguinal 4, lateral cervical 3), fever was reported in 9 cases, 2 patients had a maculopapular rash. Serology was positive in ali cases observed. The fine needle aspiration of the lymph node under ultrasound guidance was performed in 4 patients, the culture of the sample was negative, while PCR was positive in 2 cases. Twelve patients underwent antibiotic therapy, in most cases with a macrolide (clarithromycin). A survey on domestic cats have shown that 35/165 (23%) were bacteraemic and 49/165 (29%) were seropositive. 45% were infected with B.henselae type I, 36% type li, 12% from both serotypes and 6% from B.clarridgeiae. ID nr. 4000 Mazzoni C, Bonilauri° P, Borri E, Tonon F, Ponzio M Field experience on farrowing room efficiency improvement in herd with two-week forrowing system 20th Internationl Pig Veterinary Science Congress IPVS 2008 : Durban, South Africa, 22-26 June 2008 : poster proceedings / [s.l : s.n, 2008]. - p 604. - 4 bib ref International Pig Veterinary Society Congress (IPVS) (20 : Durban, (South Africa) : 22-26 June 2008) This paper reports a field experience on a farm that achieved a considerable farrowing room efficiency improvement using a methodical work of farrowing synchronization and assistance. ID nr. 4001 Bassi° S, Carra° E, Carpana E, Ferro A, Pongolini° S Pag. 109 di 300 31/08/2011 Detection of Paenibacillus larvae spores in naturally and artificially contamined honey samples : comparison between cultural and molecular methods Symposium OIE- APIMONDA Diagnosis and control of bee diseases : August 26 and 28, 2008 Freiburg (Germany)" / [s.l. : s.n., 2008]. - p 136-137 Symposium OIE- APIMONDA : Freiburg (Germany) : August 26 and 28, 2008) First author Bassi, Stefano American foulbrood is one of the most severe and widespread diseases of the honeybee. The causative agent of the disease is the spore forming bacterium Paenibacillus larvae. Honey produced by infected honeybee colonies becomes contaminated by the spores of this agent. The assessment of honey contamination makes it possible to infer the severity of colony exposure to P. larvae. In particular, the discrimination of contaminated from non contaminated honey samples helps differentiating between potentially diseased and non diseased honeybee colonies. Bacterial culture with colony counting and confirmation is the reference method for P. larvae spores assessment in honey. However this method suffers from long incubation and processing time. The aim of our study was the evaluation of a 16S rDNA PCR based method as a faster alternative to culture in the screening of honey samples for the presence of P. larvae spores. Specifically, PCR was compared to bacterial culture in order to determine its capability to correctly discriminate non contaminated from contaminated samples with different spore load.For the purpose of this study several naturally occurring and artificially contaminated honey samples were comparatively tested by bacterial culture and PCR. Our contribution reports the results of the study. ID nr. 4002 Bonilauri° P, Bellini R, Calzolari° M, Angelini R, Venturi L, Fallacara° F, Cordioli° P, Angelini L, Venturelli C, Merialdi° G, Dottori° M Chikungunya virus in Aedes albopictus, Italy Emerg Inf Dis. - Vol. 14 no 5 ( 2008). - p 852-853. - 8 bib ref Impact factor: 5,775 First author Bonilauri, Paolo not found. ID nr. 4004 Calzolari° M, Bonilauri° P, Mascali_Zeo S, Bellini R, Angelini P, Venturelli C, Dottori° M Screening for viral dectection of Aedes albopictus larvae hatched from eggs collected during a Chikungunya outbreak in Italy Second Annual meeting Epizone : "Need for speed" : 4,5 and 6 June, 2008 Brescia, Italy : programme and abstracts / [s.l. : s. n., 2008]. - p 110. - 3 bib ref Annual meeting Epizone (2nd : Brescia, Italy : 4,5 and 6 June, 2008) First author Calzolari, Mattia In 2007 the mosquito Aedes albopictus was involved as vector in an outbreak of CHIK in Italy. The disease affected about 250 people, mainly in the village of Castiglione di Cervia (Ravenna). The risk of overwintering of the CHIKV is represented by infected females transmitting the virus into the eggs (VT). Experiments conducted on VT of CHIKV in Ae. albopictus produced conflicting results: it was excluded by Mourya (2), but Zhang et al. (3) isolated the virus from pools of Tiger mosquitoes born from experimentally infected mothers. Recently, the CHIKV was isolated in 2 out of 500 pools of larvae sampled in La Reunion (1). The aim of this study was to check the presence of CHIKV in the mosquitoes progeny belongin to the area of the Italian outbreak. 2.Material and Methods Eggs from ovitraps employed for monitoring of Tiger mosquito were collected. The ovitraps sticks were put in closed glass jars with appropriate solution and let at room Pag. 110 di 300 31/08/2011 temperature for 12-14 h, in order to hatch the eggs. The same sticks after first hatching were conserved for further 3-4 weeks at 4-5°C and re-processed at least other two times, to hatch diapausing eggs. Larvae were reared at room temperature for 7-10 days, grouped in 15-20 individuals pools and submitted to RTPCR3. Results 402 sticks sampled from August until October 2007 in 158 sites were processed. A total of 8947 specimens (16% from diapausing eggs) was obtained, 101 were from Castiglione. The specimens obtained were grouped into 590 pools and subjected to PCR, without any positive result. 4. Discussion and Conclusion. No positive PCR results were obtained, indicating that VT didn't occur in the sampled eggs. Anyway VT is a rare event in CHIK and it might not be easily detectable. For this reason our thought is that re-appearing of the disease from Ae. albopictus larvae is improbable but this event can not be completely excluded. ID nr. 4005 Fallacara° F, Bonialuri° P, Sambri V, Rossini G, Cavrini F, Cordioli° P, Lavazza° A, Bellini R, Calzolari° M, Angelini R, Venturi L, Angelini° P, Venturelli C, Pacciarini° ML, Merialdi° G, Dottori° M Complete nucleotide sequence of Italian Chikungunya virus Second Annual meeting Epizone : "Need for speed" : 4,5 and 6 - June, 2008 Brescia, Italy : programme and abstracts / [s.l. : s. n., 2008]. - p 108. - 3 bib ref Annual meeting Epizone (2nd : Brescia, Italy : 4,5 and 6 - June, 2008) First author Fallacara, Francesca introduction and Objectives in this work, we describe the complete sequence of Chikungunya virus (CHIKV) detected in Aedes albopictus (1) collected during the Italian outbreak observed in summer 2007 (ITA07-RA1, GenBank EU244823) and the E1 sequences of CHIKV isolates from human sera. 2.Material and Methods Complete nucleotide sequence was performed employing primers previously described (2). Phylogenetic analysis was performed with MEGA 4 (3) using the neighbor-joining algorithm and the Kimura 2-parameter distance model. 3.Results The CHIKV genomic RNA was 11788 nt long. The comparison with other CHIKV strains showed that ITA07-RA1 clustered with Indian isolates (IND-06, 99.5% nt identity) and Reunion Islancis isolates (RU, 98.8% nt identity), into the ECSA genotype. Analysis of partial E1 (1044 bp, from 10264 to 11307 according to 527 strain) from mosquitoes and human sera shows 100% nt identity. In E1 region, the Italian strain shows two relevant changes (A226V and D284E), also present in >90% of later RU isolates. It was hypothesized that these mutations confer evolutionary success to the virus in its adaptation to the urban vector A. albopictus (2). Moreover, ITA07-RA1 presents the two unique substitutions noted in all of the IND06 isolates, but not in the RU isolates, both in Nspl region (T128K and T376M). 4.Discussion and Conclusions. The Italian CHIKV sequenced from mosquitoes and human isolates shows 100% identity. This finding may confirm the role of A. albopictus as vector of the virus in the Italian outbreak (1). Moreover, in the Italian CHIK strain the two relevant substitutions (A226V and D284E) noted in all of the IND06 isolates - but not in the RU isolates - are present. This finding may indicate that the Italian virus comes from India where the CHIKV and the disease are still endemic. This episode indicates that Italy is at risk of introducing arboviruses causing human diseases, such as Dengue, West Nile and Rift valley fever. ID nr. 4006 Muraro M, Solari_Basano F, Nazzari R, Franzini° G Efficacy of Tulathromycin in the prevention of bovine respiratory disease (BRD) ira stocker cattle in Italy Large Anim Rev. - Vol. 14 ( 2008). - p 267-272. - 11 bib ref A randomised clinical study was conducted to evaluate the efficacy of Tulathromycin in the prevention of bovine respiratory disease (BRD), in typical Italian breeding conditions. Por the enrolment in the study 214 male cattle, weighing 357 to 546 kg, were imported from France. At arrival, all the animals were vaccinated, dewormed and managed as per normal farm practices. In the first days following the arrival of the animals to the farm, the BRD outbreak was confirmed by clinical and microbiological assessments presence of R Pag. 111 di 300 31/08/2011 multocida, H. somni e M. bovis) on 18 animals with respiratory signs, then, all the animals were treated with Tulathromycin (G1 = 96) or Tilmicosin (G2 = 97) in commercial formulations and following the label instructions. In the two weeks following the treatment, Tulathromycin showed an high efficacy in BRD prevention (97,8%), significantly higher than Tilmicosin (89,1%, p = 0,0326). The comparison of daily weight gain of the two groups showed an overall improvement of production performance of the animals treated with Tulathromycin (average body weight = 537 kg, IPG = 1,69 kg/day) when compared to those treated with, Tilmicosin (average body weight = 530 kg, IPG = 1,57 kg/day). The lack of statistical significance of this data suggest further investigation by increasing the sample size. ID nr. 4007 Makoschey B, Beer M, Zientara S, Haubruger E, Rinaldi L, Dercksen D, Millemann Y, Rijn PV, De_Clerq K, Oura C, Saegerman C, Domingo M, Sanchez_Vizcaino JM, Mehlhorn H, Tamba° M, Thiry E Bluetongue control : a new challenge for Europe Berl Muench Tieraerztl Wochenschr. - Vol. 121 no 7/8 ( 2008). - p 306-313 Impact factor: 0,721 Project PRC2004003 - Epidemiologic and entomologic investigations for the control of Blue tongue disease (BT) in an area which is free from the disease but endemic for a BT virus of vaccinal origin - Tamba Dr. Marco - Solo - MINSAN - 2004 - 63020,00 EUR - 01/07/2005 0.00.00 - 30/06/2007 0.00.00 1 - N0 - CEREV - Tamba Dr. Marco - I 2 - N8 - Reggio Emilia - Dottori Dr. Michele - I 3 - N4 - Modena - Pongolini Dr. Stefano - I 4 - N3 - Forlì - Massi Dr.ssa Paola - I 5 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I not found. ID nr. 4008 Lavazza° A, Cardeti G Bee viral infections and mortality of colonies Spopolamento e morte di alveari : aspetti sanitari : 18 - 19 Giugno 2008 Roma / [s.l. : Istituto Zooprofilattico Sperimentale delle Regioni Lazio e Toscana, 2008]. - p 57-69. - 13 bib ref Spopolamento e morte di alveari : aspetti sanitari : Roma : 18 - 19 Giugno 2008) Project PRC2007110 - Epidemiological study on notifiable bee diseases and evaluation of the relative sanitary legislation - Formato dr.Giovanni - UO - MINSAN - 2007 - 4950,00 EUR - 01/12/2008 0.00.00 - 30/11/2010 0.00.00 - 1 - G1 - Reparto di Virologia e Sierologia Specializzata - Lavazza Dr. Antonio - I First author Lavazza, Antonio Specific viruses affecting honeybees are widespread and normally give latency i.e. they can be detected in seemingly healthy bees. In the last decade we investigated the presence and spread of bee viruses in Italian hives. Samples of honeybees at different stages were examined by electron microscopy methods, including IEM for ABPV and ELISA test for DWV. DWV and ABPV were often detected in high titres in association with severe signs: depopulation, adult bees with paralysis and/or deformed wings, mortality. ID nr. 4009 Grilli G, Ferrazzi V, Cislaghi G, Sironi G, Lavazza° A, Gallazzi D Pag. 112 di 300 31/08/2011 Parvovirus-like hepatitis in grey partridge (Perdix perdix): preliminary observations Proceeding of the fifty-seventh Western Poultry Disease Conference : April 9-12, 2008 Puerto Vallarta, Jalisco, Mexico / [s.l. : s.n., 2008]. - p 207-209. - 9 ref bib Western Poultry Disease Conference (57th : Puerto Vallarta, Jalisco, Mexico : April 9-12, 2008) During the summer 2006 a pathologic syndrome was observed in a rearing facilities of 3,000 partridges (Perdix perdix) in Northern Italy. The disease was characterized by depression, anorexia, mild enteritis, and sudden death in 50-day-old partridges. The mortality rate was very low (5%). Post-mortem examination showed blood suffusions and catarrhal duodenitis. The liver was marbled. Spleen and bursa of Fabricius frequently appeared atrophied. Other organs appeared norma]. Appropriate tissue samples were taken for bacteriologic, histopathologic, and virologic examinations. Ali bacteriological cultures were negative for specific pathogens. The negative staining electron microscopy examination of liver and spleen homogenates evidenced the presence of both scattered and grouped small regular roundish particles about 20 nm in diameter. Morphology and regular size of the particles suggested their identification as virions similar to parvovirus . ID nr. 4010 Martella V, Lorusso E, Banyai K, Decaro N, Corrente M, Elia G, Cavalli A, Radogna A, Costantini V, Saif LJ, Lavazza° A, Di_Trani L, Buonavolglia C Identification of a porcine calicivirus related genetically to human sapoviruses J Clin Microbiol. - Vol. 46 no 6 ( 2008). - p 1907-1913. - 40 bib ref Impact factor: 3,708 First author Lavazza, Antonio Whether animals may act as reservoirs for human caliciviruses is unclear. By sequence analysis of a short fragment of the RNA-dependent RNA polymerase (RdRp) region, porcine sapovirus (SaV) strains that genetically resemble human SaVs have been detected in piglets, but more-informative sequences (capsid gene) were not available for a precise characterization. In this study, theY terminus (the Y end of open reading frame 1 [ORF1I, including tbc polymerase complex and the complete capsid; ORF2; and tbc Y untranslated region) of one such human SaV-like strain, 43/06-18p3/2006/It, was determined, revealing that these viruses are more related genetically to human (47.4 to 54.9% amino acid identity) than to animal (35.2 to 44.7% amino acid identity) SaVs in tbc capsid gene. In addition, tbc recombination-prone RdRp-capsid junction region was highly conserved with those of human SaVs of genogroup GI. The presence of porcine viruses similar to human SaVs is a significant finding because of the potential for zoonotic infections or generation of porcine/human recombinants. ID nr. 4011 Quaglio F, Galuppi R, Marcer F, Morolli C, Bonoli C, Tampieri MP, Bassi° S , Gianaroli M, Malagoli F Episodes of mortality in white-clawed crafish (Austropotamobius pallipes complex) in three streams of Modena Province (Northern Italy) 17th Simposium International Association of Astacology (IAA) : August 4-8, 2008, Kuopio, Finland / [s.l. : s.n., 2008]. Simposium International Association of Astacology (17. : Kuopio, Finland : August 4-8, 2008) A massive and apparently total mortality of white-clawed crayfish (Austropotamobius pallipes complex) occurred in three streams in Modena province. Dead or moribund crayfish were collected and submitted to mycological, parasitological, bacteriological, virological, and histopathological analyses. Extended Biotic Index was evaluated for each water course and chemical-physical and bacteriological water analyses were carried Pag. 113 di 300 31/08/2011 out. Saprophytes, ectosymbionts and ectocommensal organisms were frequently observed in crayfish. No virus was found.. All water courses showed environmental pollution. A prolonged exposure to toxic substances in the water could have exhausted the defense mechanisms so that the crayfish were more susceptible to the action of opportunistic pathogenic agents and subsequently succumbed. ID nr. 4012 Martella V, Bànyai K, Lorusso E, Bellacicco AL, Decaro N, Mari V, Saif L, Costantini V, De_Grazia S, Pezzotti G, Lavazza° A, Buonavoglia C Genetic heterogeneity of porcine enteric caliciviruses identified from diarrhoeic piglets Virus Gen. - Vol. 36 ( 2008). - p 365-373. - 43 bib ref Impact factor: 1,362 Enteric caliciviruses (noroviruses and sapoviruses) are responsible for the majority of non-bacterial gastroenteritis in humans of all age groups. Analysis of the polymerase and capsid genes has provided evidence for a huge genetic diversity, but the understanding of their ecology is limited. In this study, we investigated the presence of porcine enteric caliciviruses in the faeces of piglets with diarrhoea. A total of 209 samples from 118 herds were analysed and calicivirus RNA was detected by RT-PCR in 68 sample (32.59) and in 46 herds (38.9%), alone or in mixed infection with group A and C rotaviruses. Sequence and phylogenetic analysis of the calicivirus-positive samples characterized the majority as genogroup III (GGIII) sapoviruses. Unclassified caliciviruses, distantly related to the representatives of the other sapovirus genogroups, were identified in five herds, while one outbreak was associated with a porcine sapovirus related genetically to human GGII and GGIV sapovirus strains. By converse, norovirus strains were not detected. Altogether, these data suggest the epidemiological relevance of porcine enteric caliciviruses and suggest a role in the etiology of piglets diarrhoea. ID nr. 4015 Capucci° L, Lavazza° A Rabbit haemorrhagic disease Manual of diagnostic tests and vaccines for terrestrial animals : (mammals, birds and bees) / Office International des Epizooties (OIE). - Paris : OIE, c2008. - p 947-961. - 41 bib ref First author Capucci, Lorenzo Rabbit haemorrhagic disease (RHD) is a highly contagious and acute fatal disease of the European rabbit (Oryctolagus cuniculus), caused by a calicivirus. A similar disease, caused by a different calicivirus and termed European brown hare syndrome (EBHS), has been described in the hare (Lepus europaeus). The aetiological agent is a different calicivirus, antigenically related to the RHD virus (RHDV). RHD is characterised by high morbidity and high mortality (40-90%), and spreads very rapidly by direct and indirect transmission. Infection can occur by nasal, conjunctival or oral routes. Transmission of RHD is facilitated by the high stability of the virus in the environment. The incubation period varies from 1 to 3 days, and death usually occurs 12-36 hours alter the onset of fever The clinical manifestations have been described mainly in the acute infection (nervous and respiratory signs, apathy and anorexia). Clear and specific lesions, both gross and microscopic, are present. There is primary liver necrosis and a massive disseminated intravascular coagulopathy in all organs and tissues. The most severe lesions are in the liver, trachea and lungs. Petechiae are evident in almost all organs and are accompanied by poor blood coagulation. Identification of the agent: The liver contains the highest viral titre and is the most suitable organ for viral identification. As no satisfactory growth conditions or sensitive cell substrates have been established, in-vitro isolation cannot be employed. The haemagglutination test using human Group O red blood cells was the first test applied for routine laboratory diagnosis of RHD. However, other tests (negative-staining electron microscopy, sandwich enzymelinked immunosorbent assay [ELISA], immunohistological staining, polymerase chain reaction and Western blot) have shown a higher level of specificity and sensitivity. Serological tests: Characterisation and titration of specific antibodies arising from natural Infection or from immunisation are performed using the haemagglutination inhibition test or an indirect or competitive ELISA. The following reagents are prepared: Pag. 114 di 300 31/08/2011 antigen from infected rabbit liver, anti-RHDV serum from convalescent or hyperimmunised rabbits, and negative serum from rabbits fully sensitive to RHDV Infection. Monoclonal antibodies have been produced in several laboratories. Some laboratories have produced a recombinant antigen, VP60 structural protein expressed in baculovirus, which can also be used as a diagnostic reagent. Requirements for vaccines and diagnostic biologicals: Indirect control of the disease is achieved by vaccination using a killed vaccine prepared from clarified liver suspensions of experimentally infected rabbits and subsequently inactivated and adjuvanted. Vaccinated animals quickly produce solid protective immunity against RHDV Infection (within 5-10 days) and experimental data indicate that protection lasts for a long period (over 1 year). ID nr. 4016 Stacchiotti A, Morandini F, Bettoni F, Rodella LF, Grigolato P, Lavazza° A, Aleo MF Nephrotoxicity induced by inorganic Hg(II) and Pb(II): a microscopic and biochemical in vitro study 14th European Microscopy Congress : Aachen, 1-5 September 2008 / a cura di Ankje Aretz, Benita Hermanns-Sachweh, Joachim Mayer. - [s.l : s.n, 2008]. - v. 3: Life science. - p 289-290. - 4 bib ref European Microscopy Congress (14th : Aachen, Germany : 1-5 September 2008) First author Lavazza, Antonio A close link between stress protein up-regulation and oxidative damage may provide a novel therapeutic tool to counteract nephrotoxicity induced by toxic metals in the human population, mainly in children, of industrialized countries. Here we analysed the time course of the expression of several heat shock proteins, glucose-regulated proteins and metallothioneins in a rat proximal tubular cell line (NRK-52E) exposed to subcytotoxic doses of inorganic mercury and lead. Concomitantly, we used morphological and biochemical methods to evaluate metal-induced cytotoxicity and oxidative damage. ID nr. 4017 Stacchiotti A, Pedretti N, Aleo Mt, Lavazza° A Effects of schisandrin B on NRK52E cells exposed to inorganic mercury Ital J Anat Embryol. - Vol. 113 n 2 Suppl 1 ( 2008). - p 266. - 3 bib ref Congresso Società Italiana di Anatomia e Istologia Meeting of the Italian Society of Anatomy and Histology (62. : Verona, Italia : 14-16 September 2008) Aims: The exposure to mercuric chloride (HgCl2) causes an acute oxidative injury in renal tubular epithelial cells [1]. Schisandrin B (Sch.B) is a dibenzocycloocta diEne derivative from the fruit of Schisandra chinensis, a popular Chinese herb, successfully used against viral and toxic hepatitis and cardiac ischemic damage [2]. Stress proteins (Hsps) are cytoprotective chaperones enhanced in the kidney durin, mercury toxicity [3]. Since the renal efficacy of Sch.B is largely unknown, this in vitro study is aimed to better clarify its role against HgCl2-nephrotoxicity on a rat proximal tubular cell line. Wc focused on morphology and on the expression of two Hsps involved in oxidative damage, constitutive HSP25 and inducible HSP72. Methods: Sch.B dissolved in DMSO was added to medium up to 10[alpha]M concentration. NRK-52E cells in grrowin phase were incubated for 48h with 10[alpha]M Sch.B or DMSQ-alone before 24h treatment with 20(alpha)M HgCl2. Ultrastructural analysis was performed on different treatments. Both presence and abundance of Hsps were tested by immunohistochemistry and innnunoblotting using specific polycIonal and monoclonal antibodies. Results and Conclusions: Sch.B-alone treated NRK52E cells have shown normal ultrastructure. Alter Sch.B pretreatment, reduced necrosis and more preserved mitochondria were observed respect to HgCl2 exposed cells. We did not find any difference in Hsps expression between DMSQ and Sch.B-alone treated cells. Indeed llSP72 was undetectable and HSP25 was moderatly expressid. However, after exposure to 20(alpha)M HgCl2 for 24h, both Hsps enhanced. Remarkably, after Sch.B and mercury coadministration, HSP72 persisted while HSP25 increased further. These novel in vitro data suggest that Sch.B mitigates mercury-induced damage in NRK52E cells by maintenance of specific Hsps. Pag. 115 di 300 31/08/2011 ID nr. 4018 Dusi° G, Bozzoni° E, Assini° W, Tognoli° N, Gasparini° M, Ferretti° E Confirmatory method for the determination of resorcylic acid lactones in urine sample using immunoaffinity cleanup and liquid chromatography-tandem mass spectrometry Anal Chim Acta. - Vol. 637 ( 2009). - p 47-54 - 18 bib ref Impact factor: 3,146 First author Dusi, Guglielmo The presence of Zeranol (a-zearalanol) in urine samples due to natural contaminantion or illegal treatment is under debate within the European Union. The simultaneous determination of zeranol, its epimer taleranol (ßzearalanol), zearalanone and the structurally-related mycotoxin zearalenone with the corresponding a- and ßzearalenol metabolites appears to be critical in deciding whether an illegal use has occurred. The aim of this study is to develop and validate a simple analytical procedure applicable to bovine and swine urine samples for the determination of all six resorcylic acid lactones. After an enzymatic deconjugation, the urine was subjected to a one-step cleanup on a commercially available immunoaffinity chromatography cartridge. The analytes were detected by liquid chromatography-negative-ion electrospray tandem mass spectrometry using deuterium-labelled internal standards. The method was validated as a quantitative confirmatory method according to European Commission Decision 2002/657/EC. The evaluated parameters were: linearity, specificity, precision (repeatability and intra-laboratory reproducibility), recovery, decision limit, detection capability and ruggedness. The decision limits (CCa) obtained, were between 0.56 and 0.68 µg L-1; recovery above 66 % for all the analytes. Repeatability was between 1.4 % and 5.3 % and within-laboratory reproducibility between 1.9 % and 16.1 % for the six resorcylic acid lactones. ID nr. 4019 Magistrali C, Facinelli B, Princivalli MS, Barocci S, Merialdi° S, Ciuti F, Magi G, Palmieri C Analisis of genetic diversity and virulence-associated gene profiling of Streptococcus isolates from symptomatic and asyntomatic pigs in Italy 20th IPVS Internationl Pig Veterinary Society Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - V. 2. - cdrom p 338. - 2 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, South Africa : 22-26 June 2008) not found. ID nr. 4020 Merialdi° G Escherichia coli associated diseases in post-weaned piglets Obiet Docum Vet. - Vol. 29 no 2 ( 2008). - p 17-22. - 33 bib ref First author Merialdi, Giuseppe The most important enteric and systemic diseases caused by E. coli infection in weaned piglets are reviewed focusing on predisposing factors as alimentary changes at weaning and their effect on intestine physiology and microflora. ID nr. 4021 Macini P, Squintani G, Finarelli AC, Angelini P, Martini E, Tamba° M, Dottori° M, Bellini R, Santi A, Loli_Piccolomini L, Po C Pag. 116 di 300 31/08/2011 Detection of West Nile virus infection in horses EuroSurveillance http://www.eurosurveillance.org/viewarticle.aspx?articleID=18990 (ultimo accesso 07/05/2009). - Vol. 13 no 39 ( 2008). - p 1-2. - 1 bib ref not found. ID nr. 4022 Bano L, Merialdi° G, Bonilauri° P, Dall'Anese G, Capello K, Comin D, Cattoli G, Sanguinetti V, Hampson DJ, Agnoletti F Prevalence, disease associations and risk factors for colonization with intestinal. spirochaetes (Brachyspira spp.) in flocks of laying hens in north-eastern Italy Avian Pathol. - Vol. 37 no 3 ( 2008). - p 281-286. - 32 bib ref Impact factor: 1,257 First author Merialdi, Giuseppe The present study investigated the occurrence of anaerobic intestinal spirochaetes of the genus Brachyspira in laying hen flocks in Treviso province, north-eastern Italy, with respect to prevalence, spirochaete species present, disease associations and risk factors for colonization. A total of 450 faecal samples from 45 sheds on 29 laying hen farms were cultured for intestinal spirochaetes. Nineteen sheds on 12 farms contained chickens with symptoms consistent with avian intestinal spirochaetosis, including reduced egg production, wet litter and/or pasty vents. Spirochaetes were isolated from 157 (34.8%) samples from 21 (72.4%) farms, and from 32 (71.1%) sheds. From these positive samples, 189 spirochaetal isolates were speciated using three polymerase chain reaction assays and a restriction fragment polymorphism analysis of 16S rDNA polymerase chain reaction products. Overall, 52 (27.5%) isolates were identified as pathogenic Brachyspira intermedia, 26 (13.8%) as pathogenic Brachyspira pilosicoli, 93 (49.7%) as non-pathogenic (Brachyspira innocenslBrachyspira murdochii), and 18 (9.6%) were unidentified. Faeces from 14 sheds (31%) on 10 farms (34.5%) contained B. intermedia and/or B. pilosicoli, and disease consistent with avian intestinal spirochaetosis was observed in nine of these sheds on seven farms. There was a significant association (P =0.042) between the presence of spirochaetes and using deep pits rather than conveyor belts for manure disposal. Sheds housing chickens >40 weeks of age were significantly more likely to contain spirochaetes (P =0.048) and pathogenic species (P =007) than sheds housing younger chickens. A significant association (P=0.02) was found between infection with pathogenic spirochaetes and reduced egg production.. ID nr. 4023 Milandri A, Cangini M, Costa A, Giacobbe MG, Poletti R, Pompei M, Riccardi E, Rubini° S, Virgilio S, Pigozzi S PSP toxic profile of mussels collected in various marine areas of Italy Biol Mar Mediterr. - Vol. 15 no 1 ( 2008). - p 38-41 During the period November 2006 - August 2007, PSP toxins bave been detected in mussels from three different Italian marine areas. Here we report about the toxic profîles of these molluscs, as revealed by HPLCFL. Differences arnong the three areas are presumably related lo the presence in the presence in the Alexandrium (Dinophyceae) species: A. catenella in Sardinia and A. minutum in Sicily and Emilia Romagna. ID nr. 4024 Caprai° E, Accurso° D, Galletti° G, Licata E, Carone° V Aflatoxin M1 contamination in bovine milk : results during five years of surveillance in Emilia Romagna region Pag. 117 di 300 31/08/2011 Sci Tec Latt Casearia. - Vol. 59 no 5 ( 2008). - p 379-394. - 7 bib ref First author Caprai, Elisabetta Owing to proliferation of aflatoxin B1 in feed during the 2003 and the consequent increase of aflatoxin M1 concentration in bovine milk, the Veterinary Service of Emilia Romagna region started a particular plane to monitor the depletion of these residues in bovine milk, to preserve public health. The monitoring plane carried out from 2004 consisted on a monthly sampling in 300 bovine farms. According to the results obtained, the number of samples analysed has been reduced during the years (100 samples in 2007) keeping a bovine farm monitoring anyway. During the 2004 the average concentration of aflatoxin M1 in the samples analysed has been reduced from 0.027 pg/kg to 0.022 pg/kg, thanks to preventive measures actuated owing to the emergency. The change of main aflatoxin M1 concentration from 2005 to the beginning of 2008 was the same of the 2004, but with an average value fixed around 0.010 pg/kg. These concentrations movements showed however an annual increase between August and November; it would be necessary to respect the number and the frequency of monthly sampling in the farms and dairy, as the regional plane required and eventually to increase the controls attendant in the critical period (the beginning of autumn). ID nr. 4025 Pongolini° S, Bergamini° F, Iori° A, Migliore S, Corradi A, Bassi° S Prion protein genotypes of Italian sheep breeds with lysine-171 and phenylalanine-141 detection Vet Microbiol. - Vol. 137 ( 2009). - p 18-23. - 25 bib ref Impact factor: 2,370 Project PRC2003011 - Genotyping of sheep in Emilia-Romagna Region for Scrapie resistance. - Pongolini Dr. Stefano - Solo - MINSAN - 2003 - 35000,00 EUR - 26/04/2004 0.00.00 - 25/04/2005 0.00.00 1 - N4 - Modena - Pongolini Dr. Stefano - I First author Pongolini, Stefano Amino acid polymorphisms of the prion protein gene influence sheep susceptibility to classical and atypical scrapie. Substitutions at codons 136, 154 and 171 play an important role in classical scrapie. Codon 141 leucine to phenylalanine mutation (AFRQ) has been recognized as an increased risk factor for atypical scrapie. In addition a rare allele with lysine at codon 171 (ARK) has been detected in Mediterranean sheep breeds. The presence of ARK poses two problems: the determination of its frequency and its possible interference with genotyping output of routine methods lacking specific detection capacity for ARK. The aim of our work was the development of a routine genotyping method with the capacity to identify ARK and AFRQ in addition to the normally detected alleles and to determine the frequencies of all these alleles in 5 main Italian breeds: Sarda (n = 2494), Bergamasca (n = 2686), Appenninica (n = 297), Comisana (n = 361) and Massese (n = 402). A multiplex primer extension assay targeting the six single nucleotide polymorphisms of interest was developed. Allele frequencies revealed a very low level of ARR in Bergamasca (6.91%) as opposed to the other breeds, very diverse levels of AFRQ ranging from absence in Comisana to 10.70% in Massese and a restricted presence of ARK. This allele has only been detected in Bargamasca with a significant 3.67% and marginally in Appenninica (0.34%). These results underline the need for adequate routine methods for genotyping of breeds with alleles that can interfere with typing of important codons such as the case of ARK for codon 171. ID nr. 4028 Pennelli D, Salogni° C, Tagliabue° S, Alborali° GL Antibiotic resistance in Lactococcus garvieae strains isolated from salmonid fishes during the period 1994-2005 : preliminary results Ittiopatologia. - Vol. 5 ( 2008). - p 65-72. - 14 bib ref In Italy Lactococcosis is considered the main liable for yearly shrinkage of trout production. Antibiotics are Pag. 118 di 300 31/08/2011 used to control the disease, even if it is necessary to consider that a wrong employment moy cause a development of antibiotic resistance Our aim is to provide a first share to in vitro Lactococcus garvieae antimicrobial resistance study; we examined 73 strains isolated from rainbow trout (Oncorhynchus mykiss) during the period 1994-2005, reared in farms placed in the north Italy. It has been applied the Kirby-Bauer agar diffusion method; each strain was tested for 27 different antimicrobial drugs. All the strains were flumequine (100%) resistant; high rates of drug resistance were detected for colistin, tiamulin (97,3916) and sulfadiazine (96%). Full susceptibility (100%) was observed for amoxicillin, clavulanic acid + amoxicillin and gentamicin. ID nr. 4029 Salogni° C, Aquaro G, Galli P, Gelmetti° D, AlboralI° LG Infection of Gyrodactylus turnbulli Harris, 1986 (Monogenea) on cultured guppies, Poecilia reticulata in Italy Ittiopatologia. - Vol. 5 ( 2008). - p 635-43. - 24 bib ref First author Salogni, Cristian Cutaneous monogenean gyrodactylid parasites are main pathogenic species speciftc factor. Pathogen effects are due to lesions caused by adhesive complex armed with anchors and hooks (haptor). Moreover gyrodactylid parasites present a high reproductive and diffusive capacity. This work describes a Gyrodactylus turnbulli and Urocleidoides reticulatus infection in Italian breeding guppies, that occurred in the summer 2006 and that caused high mortality. Juvenile ftshes (from 2-3 days to one month) showed the higher mortality than adult ftshes. Analyzed specimen showed feeding problems, swimming with erratic or swinging movements and frequent rubbings against rigid surfaces. Thins, especia/1y the cauda/ one, became thinner to ftliform. Evident lesions, white opaque spots, were homogeneously scattered on the skin of adult ftshes. In juvenile ftshes, skin lesions were localized mainly on dorsal region and cauda/ peduncle. Lesions in adult ftshes seem to be less severe than juvenile specimen. Pathogenicity was sub-acute in juvenile ftshes (mortality 80-100% in 1-2 weeks from the fast symptoms). Effect of infection in adults is chronic mortality. Parasitological, microscopica!, cultural, mycological, virological and histological routinary analysis were carried out on samples. All the examined samples showed a massive skin infection by G. tumbulli, moreover gills presented a low intenity infection by U. reticulatus. Histological analysis revealed that, in some specimen, skin parasites were associated with a limpholeucocytic myositis. Bacteriological, mycological and virological analysis resulted negative. ID nr. 4030 Salogni° C, Cervellione F, Zanoni° M, Gelmetti° D, Alborali° GL A severe outbreak of mycobacteriosis due to Mycobacterium marinum in farmed rainbow trout (Oncorhynchus mykiss) in Italy Atti del XV convegno nazionale della società italiana di patologia ittica : 22-24 Ottobre 2008, Erice (TP) / [s.l. : Società italiana di patologia ittica, 2008]. - p 29 Convegno nazionale della Società italiana di patologia ittica (15. : Erice (TP) : 22-24 Ottobre 2008) First author Salogni, Cristian A low mortality rate was continuously observed in a rainbow trout (Onorhynchus mykiss) farm located in the north of Italy during summer 2007, starting 21 days post intraperitoneal vaccination against Lattococcus garviae. During the previous months fish were affected by proliferative kidney disease (PKD). The cumulative mortality during summer 2007 peaked at 95 % of the population, affecting approximately 10 tons. All fish presented melanosis, exophthalmia, anorexia and lethargia. Necroscopy revealed the presence of greyish nodular lesions localized into spleen, liver and kidney; histology showed granulomatous lesions throughout the viscera with the presence of acid fast bacteria. Mycobacterium marinum has been isolated and identified by biochemistry assay, polymerase chain reaction (PCR) and sequencing rRNA 16s.. Pag. 119 di 300 31/08/2011 ID nr. 4031 Salogni° C, Mioso° PM, Astuti M, Domenechini M, Alborali° Gl Monitoring plane on Opistorchiasis in freshwater fishes of Lombardia (Italy) Atti del XV convegno nazionale della società italiana di patologia ittica : 22-24 Ottobre 2008, Erice (TP) / [s.l. : Società italiana di patologia ittica, 2008]. - p 42 Convegno nazionale della Società italiana di patologia ittica (15. : Erice (TP) : 22-24 Ottobre 2008) First author Salogni, Cristian The aim of this study, made by Brescia State Diagnostic Laboratory of Ichthyopathology (IZSLER), is to monitoring the presence of Opisthorchis sp. in the freshwater fishes of Northern Italy. In human opisthorchiasis is connected to consumption of raw infested fresh-water fishes belong Cyprinidae family. In man this infestation is characterized by hepatic location of the parasite, responsible for catarrhal cholangitis than can evolves in fibrosis but also in tumor. We have tested 318 fishes (in prevalence Cyprinid fishes) from the most important Northern lakes (Garda, Iseo, Idro, Como, Maggiore, Pusiano, Varese, Garlate e Lugano). The analyses executed include: transillumination on each fish’s fillet and chloro-petic digestion of fillets' pools. We found 34 samples positive for parassitic cysts in muscle: crucian carp –Carassius carassius(pos.2/36tot.), tench –Tinca tinca-(11/42), rudd -Scardinius erythrophtalmus- (12/70), carp – Cyprinus carpio(2/9), varione –Leuciscus souffia- (2/12), european chub –Squalius cephalus- (2/10) and also 3/5 positives for catfish –Ictalurus melas- from Garlate lake. The identification of the isolated metacercarie has been performed on the morphological base and allowed the classification of the parasities similar to Digenean Trematodae of Opisthorchidae family. Further indispensable investigations with PCR systems are necessary for a certain identifications of trematode larvae isolated. ID nr. 4032 Salogni° C, Zanoni° M, Tagliabue° S, Pacciarini° Ml, Giovannini° S, Alborali° Gl Isolation of Mycobacterium marinum from granulomatous lesions in restocking carps (Cyprinus carpio) Atti del XV convegno nazionale della società italiana di patologia ittica : 22-24 Ottobre 2008, Erice (TP) / [s.l. : Società italiana di patologia ittica, 2008]. - p 30 Convegno nazionale della Società italiana di patologia ittica (15. : Erice (TP) : 22-24 Ottobre 2008) First author Salogni, Cristian This survey describes the occurrence of granulomatous lesions caused by Mycobacterium marinum in carps (Cyprinus carpio), which are intended for the introduction in North Italy water. Some carps which were found dead in the transport tank during the shipping were analyzed in laboratory. Gross lesions were: skin ulcera and greyish nodular lesions, whose size varying from few millimetres to half a centimetre, predominantly disseminated in visceral organs as liver, spleen and kidney. Histological exams of the organs with lesions were carried out. The differential diagnosis was carried out between the diseases able to cause granulomatous and/or nodular lesions such as systemic mycosis, parasitic infection (Acanthamoeba sp., Hoferellus sp., Sphaerospora sp., etc.), mycobacteriosis and not-infectious diseases like nephrocalcinosis and neoplasia. Parasitological, bacteriological, mycological and virological exams have been executed. Pooled organs (liver, spleen and kidney) had been analysed to detect mycobacteria on specific egg yolk medium (Löwenstein-Jensen and Stonebrink). M. marinum had been isolated and identified by biochemistry assay, PCR and rRNA 16S sequencing. The histological exams found granulomatous lesions and bacteria positive to Ziehl-Neelsen stain. The episode described represents a warning of the presence of M. marinum in the national territory in a fish species, the carp, that is important for the food production and the restocking.. ID nr. 4033 Pag. 120 di 300 31/08/2011 Merialdi° G, Barigazzi° G, Bonilauri° P, Tittarelli° C, Bonci° M, D'incau° M, Dottori° M Longitudinal study of salmonella infection in italian farrow-to-finish swine herds Zoonoses Public Health. - Vol. 55 ( 2008). - p 222-226. - 16 bib ref Impact factor: 1,478 Project PRC2004005 - Development of a risk assessment model relating to Salmonella contamination of Italian heavy-swine carcasses - Merialdi Dr. Giuseppe - Solo - MINSAN - 2004 - 55000,00 EUR 01/07/2005 0.00.00 - 30/06/2007 0.00.00 - 1 - N8 - Reggio Emilia - Dottori Dr. Michele - I 2 - N0 - CEREV - Tamba Dr. Marco - I 3 - N5 - Parma - Barigazzi Dr. Giuseppe - I 4 - N4 - Modena - Bassi Dr. Stefano - I 5 - N7 - Ravenna (Lugo di Romagna) - Marzadori Dr. Fausto - I First author Merialdi, Giuseppe A longitudinal study of Salmonella enterica infection was carried out in five Italian farrow-to-finish swine herds previously known to be infected by Salmonella. Five litters were randomly selected from each herd and in each litter six piglets were randomly selected and individually identified. Thus, the study included 30 pigs from each farm. At weaning, individual blood samples were collected for serological examination from all selected piglets and on the lame day from all sows in the farrowing unit. Piglets were bled again at approximately 60, 90, 150, 210 and 270 days of life whereas the last blood sample was collected at slaughtering. In one of the herds, in which the duration of productive cycle was about 12 months, the last blood samples were collected at 350 days of life. With the same time scheduling, five pen pooled faecal samples were collected from each herd for bacteriological examination. At slaughtering, mesenteric lymph nodes were collected from each ear-tagged pig. Seroprevalente(cot off S/P ratio 0.25) in sows varied from 93.8% to 100%. In Tourherds, sero-prevalente in piglets showed a similar profile with complete declineof maternal antibodies at day 60 and elear sero-conversion between day 90 andday 150. In one herd, sero-conversion was observed earlier and 56% of piglets were positive at day 90. The peak of seroprevalente was observed between day 210 and day 270. Sero-prevalente at slaughtering varied from 66% to 100%. Salmonella was isolated from faecal samples in four of five herds. No Salmo nella was isolated from mesenteric lymph nodes at slaughter in two of the herds. Culture prevalente from mesenteric lymph nodes in the other three herds ranged from 3.3% to 30%. This longitudinal study provides original information about epidemiological dynamics of Salmonella enterica infection in Italian swine herds in consideration of the unique extended fattening period typical of the Italian production. ID nr. 4034 Ferrari° M, Villa° , De_Benedictis° P, Toffan A, Dotti° S Use of cell cultures for avian Influenza virus isolation and cultivation Atti Soc Ital Sci Vet. - Vol. 62 ( 2008). - p 127. - 3 bib ref Convegno Nazionale della Societa' Italiana delle Scienze Veterinarie (SISVET) (62 : S. Benedetto del Tronto (AN) : 2008) First author Ferrari, Maura The risk of avian Influenza virus transmission to human with the emergente of a novel pandemic is of high concern. In order to overcome the limits presented by embryonated eggs (EE), cell cultures may represent a convenient biological system. The aim of this study was to compare the susceptibility of different cell lines (NSK, MDCK UMNSAH/DF1) in comparison to embryonated eggs, to avian Influenza virus (AIV) of high and low pathogenicity. 3 Groups of 30-40 day-old SPF chickens were experimentally infected with H5N2, H7N 1 and H7N3 subtype. The results of the study have shown that RT-Real Time PCR can detect viral RNA in almost all the pathological samples. Among the biological system, EE is confirmed to be the most susceptible while in the cell lines virus isolation has been performed only in NSK and MDCK. No virus was detected in UMNSAH/DFI cells. Pag. 121 di 300 31/08/2011 ID nr. 4036 Quaglio F, Galupi R, Marcer F, Morolli C, Bonoli C, Fioretto B, Tampieri MP, Bassi° S, Lavazza° A, Gianaroli M, Malagoli F Mortality episodes of white-clawed crafish (Austropotamobius pallipes complex) in three streams of Modena province (Northern Italy) Ittiopatologia. - Vol. 5 ( 2008). - p 99-127. - 103 bib ref A massive and apparently total mortality of white-clawed crayfish (Austropotamobius pallipes complex) occurred in Rossenna (09/04), Lerna (02/05) and Selve (06/05) streams in Modena province, Northern Italy. In all three streams the deceased crayfish were in different states of preservation and only recently dead or moribund crayfish were collected and submitted to mycological, parasitological, bacteriological, virological, and histopathological analyses. Extended Biotic Index was evaluated for each water course and chemicalphysical and bacteriological water analyses were carried out. Saprophytes, ectosymbionts and ectocommensal organisms were frequently observed in crayfish. No virus was found. Fusarium sp. was the most frequently isolated mycete and it occurred in pure culture from the specimens coming from Selve creek. Furthermore Mucor sp. and Penicillium sp. were detected on the crayfish from the river Rossenna, while Trichoderma sp., Alternaria sp., Gliocladium sp. and Mucor sp. from Lerna specimens. The bacteriological investigation recorded Hafnia alvei from both Lerna stream and Selve creek samples, while Aeromonas hydrophila only from Lerna. During the histological investigation, all crayfish showed severe fungal hyphae infiltrations from the exoskeleton through the superficial skeletal to the muscle hypodermis. All water courses showed environmental pollution. A prolonged exposure to toxic substances in the water could have exhausted the defense mechanisms so that the crayfish were more susceptible to the action of opportunistic pathogenic agents and subsequently succumbed. ID nr. 4037 Pongolini° S, Bergamini° F, Bassi° S A new genotyping strategy for efficient scoring of closely positioned SNPs in the ovine prion protein gene Mol Cell Probes. - Vol. 23 ( 2009). - p 122-125. - 16 bib ref Impact factor: 2,196 Project PRC2006001 - Development and implementation of epidemiological surveillance and risk analysis for primary production and processing of typical area food - Boni Dr. Paolo - Solo - MINSAN - 2006 - 1131023,00 EUR - 02/07/2007 0.00.00 - 01/07/2010 0.00.00 - 1 - M6 - Sezione diagnostica provinciale di Mantova - Nigrelli Dr. Arrigo - I 2 - N1 - Sezione diagnostica provinciale di Bologna - Belletti Dr. Gian Luca - I 3 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 4 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I 5 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I First author Pongolini, Stefano Amino-acid polymorphisms of the ovine prion protein have been known to influence susceptibility to scrapie for many years. Recently, a role in both classical and atypical scrapie was assigned to new mutations, increasing the overall number of polymorphisms of interest for breeding plans. Besides, the high number and density of polymorphisms in the prion protein gene (PrP) and the presence of unusual mutations in some breeds hampers genotyping methods, making multiplexing difficult and sometimes compromising analytical results. We developed a multiplex genotyping method for the ovine PrP that overcomes the limitations posed by the high number and density of the polymorphisms to interrogate. Nine primers were designed to be compatible in a single primer-extension reaction developed for routine genotyping, with the capacity to identify Pag. 122 di 300 31/08/2011 the following polymorphisms: A136V, M137T, 1-141F, I142K, R154H, Q171R, Q171H, Q171K and N176K. Site-specific mutations were inserted in primer sequences in order to prevent extension of reciprocally complementary primers. Complete accuracy and repeatability of the assay was assessed with reference to 97 sequenced samples. The presented method constitutes an improved tool for ovine PrP genotyping and a general strategy for the use of primer extension in a genetic context of high density of polymorphisms.. ID nr. 4038 Gamba° V, Terzano C, Fioroni L, Moretti S, Dusi° G, Galarini R Development and validation of a confirmatory method for the determination of sulphonamides in milk by liquid chromatography with diode array detection Anal Chim Acta. - Vol. 637 ( 2009). - p 18-23 - 35 bib ref Impact factor: 3,146 First author Gamba, Valentina A simple and rapid multiresidue method for the determination of seven sulphonamides residues (sulfadiazine, sulfapyridine, sulfamerazine, sulfamethazine, sulfamonomethoxine, sulfadimethoxine and sulfaquinoxaline) in milk samples was developed and validated. The drugs were extracted with a mixture chloroform/acetone and simply cleaned up on a cation exchange solid phase extraction column. The analytes determination was carried out using liquid chromatography with diode array detection (DAD). The procedure has validated as a quantitative confirmatory method according to the European Union (EU) Decision 2002/657/EC. The developed method shows good linearity, specificity, precision (repeatability and intra-laboratory reproducibility), ruggedness and is able to confirm each sulphonamide residue above 30 µg kg-1. Decision limits (CCa) around 110 µg kg-1 and recovery above 56% were obtained for all the analytes. The results of the validation process demonstrate that the method is suitable for application, as confirmatory method, in European Union statutory veterinary drug residue surveillance programmes. In addition, a hypothetical situation of sample judgement (compliance or not) in the case in which, at the saure time, two different sulphonamides are found, is discussed. ID nr. 4039 Candotti° P, Rota_Nodari° S A case report of blue spots and abortion syndrome in northern Italy 20th IPVS Internationl Pig Veterinary Society Congress : Durban, South Africa, 22-26 June 2008 : proceedings / [s.l : s.n, c2008]. - v. 2. - cdrom p 559. - 4 bib ref International Pig Veterinary Society Congress (IPVS) (20th : Durban, South Africa : 22-26 June 2008) First author Candotti, Paolo not found. ID nr. 4040 Ferrari° M, Renzi° S, Villa° R, Lombardi° TG, Sesso L Quality assurance and quality control programmes on human and animal cell cultures ISBER 2009 Annual Meeting & Exhibits : ISBER, Celebrating a Decade of Growth and Development in International Biorepository Excellence : May 12 - 15, 2009 Portland, Oregon, USA / [s.l. : s.n., 2009]. - p 96 ISBER 2009 Annual Meeting & Exhibits : Portland, Oregon, USA : May 12 - 15, 2009) First author Ferrari, Maura Pag. 123 di 300 31/08/2011 Animal and human cells are increasingly used in basic research, large-scale production of biologicals and, more recently, for therapeutic purposes. In order to ensure the reproducibility, reliability, traceability, safety, and proper application of any result or product obtained from cells, it is necessary to maintain high standards of laboratory practices. In our cell culture bank all quality assurance procedures are carried out with the objective to control] generic parameters Iike viability and safety. Furthermore, microbial, endogenous and exogenous virus contaminations are evaluated by using standard operating procedures (SOPs). Bovinederived biologicals must comply with the requirements laid down in the note for guidance (EMEA/410102 Rev. 1-May 2001). Finally, the identity of each cell type is also evaluated. Moreover, routine environmental monitoring of the laboratory apparatus is carried out at pre-determined intervals. Ali continuous cell lines are obtained from reliable sources. Also, master and working cell batches are routinely established. Besides continuous and primary cell cultures a mesenchymal stem cell bank, with samples of animal origin (rats, sheep. and horses), has been established as well. Ali of them are monitored by the aforementioned validated and sensitive diagnostic tests, for quality and absence of contamination in order to enforce biosafety. To conclude, reliable and reproducible cells can be provided if a bank is accredited by an appropriate competent authority and works in accordance to the principles of Good Laboratory Practices (GLP) and control) procedures laid down in the International Guidelines (European Pharmacopoeia).. ID nr. 4041 Ferrari° M, Villa° R, Dotti° S, Losi° CG The italian cell culture reference centre ISBER 2008 Annual Meeting & Exhibits : Global biobanking collaborations : challenges and opportunities : May 18 - 21, 2008, Bethesda, Maryland, USA / [s.l. : s.n., 2008]. - p 39 ISBER 2008 Annual Meeting & Exhibits : Bethesda, Maryland, USA : May 18 - 21, 2008) Project relopianoregionalesa - Regional Blood Plan 2006 “Adult staminal cells transplantation for cellular replacement-therapy purposes” - Prof.Franco Locatelli - UO - REGIONE - 2006 - 1230000,00 EUR - 10/08/2006 0.00.00 - 09/08/2008 0.00.00 - 8 - L1 - Reparto Substrati Cellulari - Ferrari Dr.ssa Maura - I First author Ferrari, Maura The National Cell Culture Reference Laboratory, located at the Institute Zooprofilattico in Brescia, collects a large amount of cell cultures belonging to several animal species, for a total of about 35000 frozen vials. In particular, it includes 424 established cell lines which have been obtained either from normal or from cancer tissues, 54 hybridomas, 57 primary cell culture types from various organs and tissues and recently, also biological) samples from patients with Alzheimer's disease have been collected. The Cell Culture Centre laboratory in Brescia is divided into the following main sectors: general services, culture media preparation, manipulation of established and primary cell lines, quality control) (in a separate area from the previous one), liquid nitrogen cell storage. Together with improvements in preparation methods of new cell types, particular attention is paid to quality control) in order to distribute well characterizes products free from contaminants. Ali tests (detection of bacteria, mycoplasma, human and animal viruses, bacterial endotoxins, cell line cross contaminations, tumorigenity "in vitro" and "in vivo") are performed in accordance with European Pharmacopeia, and are carried out on final products. In addition to cell cultures, a large number of viruses from several animal species (pig, cattle, fowl, horses, sheep/goat) and human, each grown in the appropriate cell culture system, are banked. Moreover, immune sera prepared in laboratory animals specific for each virus have been prepared and collected. The biological materials are supplied as reference samples for either "in vivo" tests and "in vitro" virological and molecular biology investigations. ID nr. 4042 Losi° CG, Sesso° L, Ferrari° M, Isolation, characterization and storage of animal mesenchymal stem cells ISBER 2008 Annual Meeting & Exhibits : Global biobanking collaborations : challenges and opportunities : Pag. 124 di 300 31/08/2011 May 18 - 21, 2008, Bethesda, Maryland, USA / [s.l. : s.n., 2008]. - p 38 ISBER 2008 Annual Meeting & Exhibits : Bethesda, Maryland, USA : May 18 - 21, 2008) First author Losi, Claretta_Gioia Mesenchymal stem cells (MSCs) are multipotent cells resident in a several adult tissues (as bone marrow and fat) and in umbilical cord, that are able to differentiate along multiple lineages such as chondrocytes, osteoblasts and adipocytes. This plasticity suggests their potential in reparative medicine and in tissue engineering, a powerful alternative to organ and tissue transplantation based on the use o differentiated cells. In veterinary field, MSC therapy is mainly applied in horses and dogs to treat tender ligament, bone and cartilage injuries. Furthermore, it has been shown that MSC are characterised by an immunosuppressive action that permits the use of allogenic cell transplants allowing for the creation of stem cell banks for heterologous implants. The National Cell Culture Reference Laboratory, located at the Istituto Zooprofilattico in Brescia, is already involved in biobanking of numerous cell culture types. The experience in stem cell technology, previously restricted to research on animal models, can also be potentially used for therapeutic approaches in horses and dogs. On the basis of these characteristics, Cell Culture Laboratory would represent a potential Centre in Italy for animal mesenchymal stem celi isolation, characterization and storage. ID nr. 4043 Ferretti° E, Castrezzati° G, Gasparini° M Matrix effect in the determination of organochlorine pesticide resisues in fat 7th Euro Pesticide Residues Workshop : Berlin June 1-5, 2008 / [s.l. : s.n., 2008]. Euro Pesticide Residues Workshop (7 : Berlin : June 1-5, 2008) First author Ferretti, Enrica The determination of Organochiorine Pesticides in fatty food as me^ butter, fat etc.,by gas chromatography with electron capture detector (GC-ECD), involve a very complex sample treatment. In quantitative analysis one of the main problems is the suppression or enhancement of the analyte response caused by sample matrix components. This can seriously affect the recovery and therefore accuracy. This parameters depend by sample treatment and quantification procedure. To evaluate how much they influence the final recovery, it is necessary to investigate them separately analyzing spiked blank fat where the analytes are added before and alter the treatment of the sample. Calibration curve were performed using both solvent based and matrix matched standards of the same concentration. We evaluated the matrix effect all over the studied calibration range. ID nr. 4044 Sgoifo_Rossi CA, Vandoni S, Bertocchi° L Dell'Orto V Beef production bovine: facilities, microclimate and feeding Inf Zootec. - Vol. 56 no 5 ( 2009). - p 38-44 Analysis of the animal adaptation of housing, microclimate and feeding in the Italian intensive farming for meat cow production. ID nr. 4045 Lombardi° G, Casalone C, D' Angelo A, Gelmetti° D, Torcoli° G, Barbieri° I, Corona C, Fasoli E, Farinazzo A, Fiorini M, Gelati M, Lulini B, Tagliavini F, Ferrari S, Caramelli M, Monaco S, Capucci° L, Zanusso G Intraspecies transmission of BASE induces clinical dullness and amyotrophic changes Pag. 125 di 300 31/08/2011 PLoS Pathog. - Vol. 4 no 5 ( 2008). - p 1-10. - 28 bib ref Impact factor: 9,336 Project PRC2002003 - Experimental transmission of Italian BSE strain to cattle: clinical observation, strain characterization, in vivo PrPres and molecular marker detection; establishment of reference samples for Nation-wide research. - Capucci Dr. Lorenzo - Capofila - MINSAN - 2002 - 306402,10 EUR 17/11/2003 0.00.00 - 31/08/2006 0.00.00 - 1 - H2 - Reparto di Biologia Molecolare - Capucci Dr. Lorenzo - I 2 - IZSPLV - Caramelli Dr.ssa Maria - E 3 - IST. NEUROLOGICO BESTA - Tagliavini Dr. Fabrizio - E 4 - UNI VR - Monaco Dr. Salvatore - E The disease phenotype of bovine spongiform encephalopathy (BSE) and the molecular/ biological properties of its prion strain, including the host range and the characteristics of BSE-related disorders, have been extensively studied since its discovery in 1986. In recent years, systematic testing of the brains of cattie coming to slaughter resulted in the identification of at least two atypical forms of BSE. These emerging disorders are characterized by novel] conformers of the bovine pathological prion rotein (PrPTSE) named high-type (BSE-H) and low-type (BSE-L). We recently reported two Italian atypical cases with a PrPTS type identical to BSE-L, pathologically characterized by PrP amyloid plaques and known as bovine amyloidotic spongiform encephalopathy (BASE). Several lines of evidence suggest that BASE is highly virulent and easily transmissible to a wide host range. Experimental transmission to transgenic mice overexpressing bovine PrP (fgbov XV) suggested that BASE is caused by a prion strain distinct from the BSE isolate. In the present study, we experimentally infected Friesian and Alpine brown cattie with Italian BSE and BASE isolates via the intracerebral route. BASE-infected cattle developed amyotrophic changes accompanied by mental dullness. The molecular and neuropathological profiles, including PrP deposition pattern, closely matched those observed in the original cases. This study provides clear evidence of BASE as a distinct prion isolate and discloses a novel disease phenotype in cattle. ID nr. 4046 Benetti C, Angeletti R, Binato G, Biancardi° A, Biancotto G A packaging contaminant: Isopropylthioxanthone (ITX) in dairy products Anal Chim Acta. - Vol. 617 ( 2008). - p 132-138 - 14 bib ref Impact factor: 3,186 A fast, simple and very selective liquid chromatography-mass spectrometry (LC-MS) method for the detection of isopropylthioxanthone (ITX) in dairy products has been developed and validated. After addition of an ITX-d3 as internal standard and a simple extraction from the sample with acetonitrile, the extract was centrifuged and directly injected into the LC-MS system. Chromatographic separation was achieved by means of a Gemini C18 column (100 mm x 2.0 mm i.d. 5 µm) using a gradient of aqueous 20 mM ammonium formiate at pH 4.5 and methanol as the mobile phase, at a flow rate of 0.25 mL min-1. The method was validated according to the guidelines laid down by the Commission Decision 2002/657/EC using the parent ion [M+H]* (m/z 255) as quantification ion, and the fragment ion (m/z 213) obtained by in-source collision-induced dissociation (IS-CID) as confirmation ion. Absolute and relative recoveries rates were verified at 5, 10, 15 µgkg-1 in yoghurt samples and at 5 µgkg-1 in milk and pudding: mean absolute recoveries were 77% in yoghurt, 50% in pudding and 67% in milk; relative recoveries (after intemal standard correction) were always >97% in each matrix. The detection limit (CCa) and the detection capability (CCP) of method were 6.2 and 7.2 µgkg 1, respectively. ID nr. 4047 Camarda A, Circella E, Pennelli° D, Battista P, Di_Paola G, Madio A, Tagliabue° S Occurrence of pathogenic and faecal Escherichia coli in layer hens Ital J Anim Sci. - Vol. 7 ( 2008). - p 385-389. - 7 bib ref Impact factor: 0,2180 Pag. 126 di 300 31/08/2011 A total of 117 Escherichia coli from colibacillosis affected (APEC) and clinically healthy birds (AFEC) were serotyped and tested for the presence of virulence genes: iss, tsh, cva. A total of 54.5% E. Coli were typeable and 15 different serogroups were identified. The most common serogroups among APEC strains were 078, 02 and 0128, whereas 0139 was predominant in faecal strains from healthy birds. Iss, tsh e cva were more frequently detected among the septicaemic E. coli strains. The association of virulence genes was observed. Particularly, the pathotype iss-tsh-cva was present in 46.5% of APEC strains. Referring to serogroups, E. coli 078 and 02 originating from colibacillosis affected birds were always isstsh-cva positive but did not share virulence genes when they came from healthy birds. ID nr. 4048 Calisesi L, Cappuccio P, Pozzi P, Fiorentini° L Evaluation of the efficacy of an Haemophilus parasuis vaccine through a field clinical investigation Atti Convegno SIPAS. - Vol. 34 ( 2008). - p 283-291. - 11 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (34. : Salsomaggiore Terme (PR) : 13-14 marzo 2008) A field trial has been conducted with the purpose to appraise the effectiveness of a commercia) vaccine aganist Glsser's disease. During the test 2486 piglets from the same firm (site 1) have been valued. They has divided in three groups: - Vaccinated pigs born by not vaccinated mothers (SV), - Not vaccinated pigs born by vaccinated mothers (MV), - Not vaccinated pigs (C). Piglets have been checked during the permanence in site 2 and for the first 24 days in site 3. Through weekly observations of all groups, percentge of piglets with clinical symptoms referable to Glsser's disease has been recorded. Besides we have performed laboratory and necropsy examinations on dead animals. From the data obtained we can conclude that a significant clinical variation was relative to articular pathologies in MV group. ID nr. 4049 Moreno_Martin° A, Barbieri° I, Chiapponi° C, Foni° E, Sozzi° E, Canelli E, Luppi° A, Cordioli° P Genetic characterization of H1N1 and H1N2 swine influenza viruses isolated in Italy in 1998-2007 Second Annual meeting Epizone : "Need for speed" : 4,5 and 6 - June, 2008 Brescia, Italy : programme and abstracts / [s.l. : s. n., 2008]. - p 99. - 3 bib ref Annual meeting Epizone (2nd : Brescia, Italy : 4,5 and 6 - June, 2008) First author Moreno_Martin, Ana Several changes occurred in the epidemiology of swine influenza viruses (SIV) in Europe in the last years. Classical 1-11N1 were replaced in 1979 by "avian like" H1N1SIVs. The H1N2 subtype was first described in Great Britain in 1994 and since then spread to continental Europe. In this paper the genetic relationships between 29 Italian 1-11N1 and, 12 H1N2 SIVs isolated from 1998 to 2007 were investigated. Material and Methods Partial HA and NA amplification and sequencing were performed as reported(1). Phylogenetic analysis was conducted by MEGA4(3). Results HA sequences of Italian 1-11N1 SIVs belonged to two groups: 1) strains isolated in the '90s closely related to sw/Fin/2899/82, 2) recent isolates similar to avian-like sw/IV/1455/99 (2). N1 sequences of ali recent strains, except three, were closely related to Fin/2899/82 and some earlier Italian strains. The remaining 3 isolates were like IV/1455/99 viruses. HA sequences of H1N2 SIVs were clearly distinguishabie from H1N1 SIVs. Italian strains isolated in 1998-2003 appeared similar to contemporary H1N2 SIVs from Northern Europe and formed a cluster separated from that of the recent Italian strains. Interestingly, one reassortant strain It/5433/01 1-11N1 was identified (97% identity to H1N2 Italian SIVs). N2 sequences of the earlier isolates were closely related to current strains isolated in France and Belgium and were in a different cluster from recent Italian strains (human-iike sw/Fin/127/99 SIVs). The NA gene of strain It/11271/03 H1N2 exhibited a high similarity to the Italian H3N2 SIVs. Discussion These resuits Pag. 127 di 300 31/08/2011 pointed out homogeneity among the recent 1-11N1 SIVs as well as distinguishing these from the earlier strains. It should be noted that while HA gene of recent H1N1 SIVs was different from that of the early circulating strains, the NA gene seeméd to be more related to them. Also for Italian H1N2 the presence of a homogeneous group, composed of the recent viruses, differing from earlier strains could be described. Finally the occurrence of reassortment events was evidenced by the detection of two reassortant strains. These findings suggest the requirement for improved surveillance activities in the future. ID nr. 4052 Rosignoli° C Clostridial diseases in cattle : diagnosis and control Buiatria. - Vol. 3 no 4 ( 2008). - p 27-56. - 75 bib ref Project PRC2001006 - Use of PCR for typing C. perfrigens strains isolated from enteric and entero-toxiemic disease cases of animals and animal source foods. - Rosignoli Dr. Carlo - Solo - MINSAN - 2001 93163464,00 LIT - 03/03/2003 0.00.00 - 02/07/2004 0.00.00 - 1 - M6 - Mantova - Rosignoli Dr. Carlo - I First author Rosignoli, Carlo Clostridiosis are diseases caused by toxigenic, Gram positive, anaerobic bacteria of genus Clostridiiim. In cattle the most important clostridial diseases are those that cause "sudden death" or "unexpected death" such as enterotoxaemias and tissue infections sustained by histotoxic clostridia. In recent years also severe outbreàks of botulism have often been observed both in dairy farms and fattening units, with significant economic losses due to the number of animals affected and to the public health restrictive actions undertaken. Outbreaks of tetanus instead are* sporadic and isolated, while intestinal infections in calves sustained by Clostridium difficile are currently under study and investigation. To manage these diseases the practitioner needs to follow the appropriate diagnostic routes and to put into place effective control programmes. The aim of the present paper is to consider these aspects by giving a brief introduction to the etiopathogenesis of the different diseases. ID nr. 4054 Barbieri° I, Brocchi° E, Campagna° D, Capucci° L Ph variations affect PK stability of guanidine-treated BSE and BASE-associated PrP Prion2008 : 08-10 October 2008, Madrid, Spain : book of abstracts / [Spain : s.n., 2008]. - p 126 Prion2008 : Madrid, Spain : 08-10 October 2008) First author Barbieri, Ilaria Background: The agent responsible for Bovine Spongiform Encephalopathy may exist in at least 3 different forms referred to as C-Type, H-Type and L-Type based on electrophoretic mobility and glycoprofiling of PrPs,. Passages in conventional mice and inoculation in cows has shown diversity in bovine prion strains in terms of incubation period and lesion profile strengthening the hypotesis that, as for human TSE, each prion conformer carries the specific information that determine its own distinct biological properties. Objective: We investigated biochemical and physicochemical properties of PrPsc associated to classical BSE (C-type) and BASE (L-type) Italian isolates in order to unravel differences in their molecular structure. Methods: Aliquots of BSE and BASE terminally diseased brain homogenates were incubated with increasing concentration of GdnHCI at different pH values followed by limited proteolysis with PK. Then samples were precipitated with methanol and subjected to Western blot with a set of MAbs. Results and Discussion: Treatment with 2.5 M GdnHCI pH 7.6led to a significant increase in PK sensitivity of L-type PrP compared to C-type that showed resistance to PK up to 3.5 M GdnHCI. Interestingly, when GdnHCI solutions at pH 3.5 were used an increased stability to PK of both C-type and L-type PrP was observed as they were digested at GdnHCI concentration of 4.5 M and 4.0 M respectively. These data indicate the possibility of discriminating C-type and L-type PrP on the base of their distinct stability to PKinduced proteolysis following exposure to guanidine. They also suggest the existence of differences in their Pag. 128 di 300 31/08/2011 conformational properties that seem to be affected by pH variations. Assessing the extent of such biochemical diversity may provide hints to understand how differences in the molecular structure of C-type and L-type PrP are related to the distinct pathological phenotype of BSE and BASE. ID nr. 4055 Benedetti D, Fiorini M, Cracco M, Ferrari S, Capucci° L, Brocchi° E, Monaco S, Zanusso G Molecular characterization of low molecular mass C-terminal fragments in different CreutzfeldtJakob disease subtypes Prion2008 : 08-10 October 2008, Madrid, Spain : book of abstracts / [Spain : s.n., 2008]. - p 155 Prion2008 : Madrid, Spain : 08-10 October 2008) Background: In sporadic Creutzfeldt-Jakob disease (sCJD) the clinical variability has not been fully explained by molecular studies relating two major types of PrP21-30 with unglycosylated peptides of 21(type 1) and 19 kDa (type 2) and the amino acid methionine or valine at position 129. In a previous work, by using twodimensional immunoblot we identified distinct N-terminal truncated forms of prion protein in different sCJD subtypes. Objective: In the present study, we searched on low molecular mass PrPs, fragments (below 10kDa) which might correlate with the phenotypic variability observed in different sCJD molecular subtypes. Methods: Brain homogenates of sCJD subjects were separated by mono- and two-dimensional electrophoresis and immunoblotted by using anti-PrP antibodies directed to N- and C-terminus epitopes. Results and Discussion: We biochemically characterized by mono- and two-dimensional analyses novel Cterminal PK-resistant fragments migrating at -5.5 kDa and with an isoelectric point around 4. These fragments were found in almost all different sCJD subtypes with minor variabilities among subjects. These data show the presence of multiple PrPs, conformations in sCJD and, in addition, shed new tight on the correlation between sCJD phenotypes and disease associated PrP molecules. ID nr. 4056 Rota_Nodari° S, Candotti° P The effect of stressors on the onset of gastric ulcers in swine Large Anim Rev. - Vol. 15 Supp al n 3 ( 2009). - p10-12. - 7 bib ref Congresso Nazionale Multisala SIVAR (11. : Cremona : 8-9 maggio 2009) First author Rota_Nodari, Sara The author review the stressors currently present in pig farming and their effects on the onset of gastroesophageal ulcer in swine. ID nr. 4057 Rota_Nodari° S, Candotti° P A scoring system for gastric ulcers Large Anim Rev. - Vol. 15 Supp al n 3 ( 2009). - p15-17. - 2 bib ref Congresso Nazionale Multisala SIVAR (11. : Cremona : 8-9 maggio 2009) First author Rota_Nodari, Sara The authors present a method to classify the gastroesophageal ulcers of swine. Thew methos is based on a 0-4 scoring system. Pag. 129 di 300 31/08/2011 ID nr. 4058 Vergerio° EE Formazione veterinaria an amazing challenge 30 giorni. - Vol. 2 no 6 ( 2009). - p 25-26. First author Vergerio, Erika_Ester Since October 2008 “Animal welfare of animals kept for farming purposes” the first e-learning course hosted on “Formazione veterinaria”, the LMS platform made by IZSLER’s Reference Centre of Training Course in Veterinary Public Health in collaboration with Ministry of Health, has been atttended by almost 1014 students. The course was carried out for veterinarians, otherwise at the end of January it has been opened to everybody intersted in animal welfare. This review consideres LMS platfom experience since 6 months of activity taking in account the most important issues met by the students during his use (registration, users account, password loosing, watching and listening lessons and passing final exam) +-. ID nr. 4060 Tamba° M, Fontana° MC, Leonelli° R, Santi A, Martini E, Barigazzi° G, Bardasi° L, Dottori° M Yersinia enterocolitica O:9 and false positive reactions to Bovine Brucellosis serological tests Osservatorio. - Vol. 12 no 3 ( 2009). - p 4-5 Project PRC2005007 - Study of the unspecific reactions in the diagnosis of bovine brucellosis - Dottori Dr. Michele - Solo - MINSAN - 2005 - 109600,00 EUR - 05/06/2006 0.00.00 - 04/06/2008 0.00.00 1 - N8 - Reggio Emilia - Dottori Dr. Michele - I 2 - G2 - Reparto di Batteriologia Specializzata - D'incau Dr. Mario - I 3 - N4 - Modena - Barigazzi Dr. Giuseppe - I 4 - N0 - CEREV - Tamba Dr. Marco - I 5 - T1 - OEVRL - Zanardi Dr. Giorgio - I 6 - M2 - Bergamo - Paterlini Dr. Franco - I First author Tamba, Marco Yersinia enterocolitica (YE) O:9 causes false positive reactions to Bovine Brucellosis serological tests. A survey on YE prevalence was carried out in cattle in Emilia-Romagna. Between may 2006 and april 2008 1939 single faeces samples were collected and tested for YE presence. Cattle tested were divided in two groups: (A) heads positive to Brucellosis complement fixation test (n. 151), and (B) heads negative to Brucellosis complement fixation test (n. 1290) YE was detected in 72 animals. YE prevalence were equal to 35.1%in group A and equal to 1.5% in group B. 100% of YE isolated in group A and 42% in group B were identified as O:9. In Emilia-Romagna YE O:9 seems strictly related to false positive reactions to brucellosis test. ID nr. 4063 Pennelli D, Salogni° C, Tagliabue° S, Alborali° L Antibiotic resistance in Lactococcus garvieae strains isolated from salmonid fishes during the period 1994-2005: preliminary results Osservatorio. - Vol. 12 no 3 ( 2009). - p 13-15. In Italy Lactococcosis is considered the main liable for yearly shrinkage of trout production. Antibiotics are used to control the disease, even if it is necessary to consider that a wrong employment may cause a development of antibiotic resistance. Our aim is to provide a first share to in vitro Lactococcus garvieae antimicrobial resistance study; we examined 73 strains isolated from rainbow trout (Oncorhynchus mykiss) during the period 1994-2005, reared in farms placed in the north Italy. It has been applied the Kirby-Bauer Pag. 130 di 300 31/08/2011 agar diffusion method; each strain was tested for 27 different antimicrobial drugs. All the strains were flumequine (100%) resistant; high rates of drug resistance were detected for colistin, tiamulin (97,3%) and sulfadiazine (96%). Full susceptibility (100%) was observed for amoxicillin, clavulanic acid + amoxicillin and gentamici. ID nr. 4064 Vergerio° EE E-learning course training on animal welfare 30 giorni. - Vol. 1 no 9 ( 2008). - p 9-13. First author Vergerio, Erika_Ester In 2008 IZSLER’s Reference Centre of Training Course in Veterinary Public Health in collaboration with Ministry of Health has set up a LMS platform that hostes e-learning course for veterinarians.“Animal welfare of animals kept for farming porpuses “ was the first e-learning started up. Veterinarians could attend it connecting to www.formazioneveteria.it . This learning way was joined with a new called “autofomazione” based on use of sms to course registration and to take on the final examination. ID nr. 4065 McPhee SR, Butler KL, Kovaliski J, Mutze G, Capucci° L, Cooke E Antibody status and survival of Australian wild rabbits challenged with rabbit haemorrhagic disease virus Wildl Res. - Vol. 36 no 5 ( 2009). - p 447-456. - 30 bib ref Impact factor: 1,111 In Australia, the epidemiology of rabbit haemorrhagic disease virus (RHDV) is complicated by non-pathogenic forms of calicivirus (bCV) co-circulating with RHDV and providing variable protection from RHDV. Currently no bCV virus-specific antibody tests exist; however, a series of four ELISAs used to detect antibodies to RHDV provided an indirect means to detect antibodies to bCV, enabling antibody categories of seronegative, maternal RHDV, RHDV or bCV to be determined. Rabbits (188) from four locations were challenged with RHDV and logistic regression models determined that, for rabbits <15 months old, survival was dependent on antibody titres alone and the relationship did not vary with age, capture site, gender, liveweight or reproductive status. All rabbits survived challenge after reaching 15 months of age, irrespective of their antibody titres. Where bCV antibodies were prevalent in young rabbits, the bCV category did not adequately summarise all information about rabbit survival that can be obtained from antibody titres. Within antibody categories, 95% of rabbits with RHDV, 33% with bCV, 40% with maternal RHDV and 22% with seronegative antibodies survived. The high survival rate of adults implies that natural outbreaks or controlled releases of RHDV will have little impact on adult breeding rabbits. Therefore, where RHDV and bCV are endemic, conventional rabbit-control programs targeting the immune breeding populations should provide the most predictable outcome for longterm maintenance of low rabbit populations. ID nr. 4066 Amadori° M, Stefanon B, Sgorlon S, Farinacci M Immune system response to stress factors Ital J Anim Sci. - Vol. 8 suppl. 1 ( 2009). - p 287-299. 49 bib ref Impact factor: 0,132 First author Amadori, Massimo Pag. 131 di 300 31/08/2011 This review highlights fundamental mechanisms of the stress response and important findings as to how the immune system is affected and affects, in turn, such a response. The crucial link between stress response and energy metabolism is dealt with as well. The effector mechanisms in the stress response are remarkably similar for both infectious and non–infectious stimuli, albeit differently modulated. “Psychosensitive stimuli/behavioural response” and “Antigenic stimuli/immune response” are indeed two subsystems of a unitary, integrated complex aimed at providing optimal conditions for the host’s survival and adaptation. The interaction between the immune system and the stress/inflammation complex has led to the development of a diversified network of cytokines and chemokines in vertebrate animals. The cytokine response can be mounted in different forms and extent by the host after exposure to both infectious and non-infectious stimuli. In this conceptual framework, microbial infections are just one category of stressing agents, which modulate the cytokine response for a better performance of the innate and adaptive immune responses. The response to infectious and non–infectious stress leads to a metabolic shift that enhances energy, amino acids and micronutrients consumption. The influence of each nutrient on different aspects of immune function is not easy to define, but it is becoming clear that many nutrients have defined roles in the immune response and, accordingly, their requirements are changed to support optimal immune function. Therefore, impairment of immune functions may arise from intakes of nutrients below or above these modified ranges of requirements. ID nr. 4067 Scarcella C, Carasi S, Cadoria F, Macchi L, Pavan A, Salamana M, Alborali° GL, Losio° MN, Boni° P, Lavazza° A, Seyler T An outbreak of viral gastroenteritis linked to municipal water supply, Lombardy, Italy, June 2009 EuroSurveillance http://www.eurosurveillance.org/ViewArticle.aspx?ArticleId=19274 - ultimo accesso 27/07/2009. - Vol. 14 no 29 ( 2009). - 3 p. - 1 bib ref We report an outbreak of viral gastroenteritis linked to municipal drinking water in a town in northern Italy in June 2009. Over one month we identified 299 probable cases of whom 30 were confirmed for at least one of the following viruses: norovirus, rotavirus, enterovirus or astrovirus. Water samples and filters from the water system also tested positive for norovirus and enterovirus. Control measures included treating the water system with chlorine dioxide and filters with peracetic acid, while providing temporary alternative sources of drinking water to the population. ID nr. 4068 Tamba° M, Rugna° G, Galletti° G, Luppi° A, Piccolomini LL Incidence of natural infection due to vaccinal strain of bluetongue virus serotype-2 Argom. - Vol. 11 no 1 ( 2008). - p 59-60. - 2 bib ref Project PRC2004003 - Epidemiologic and entomologic investigations for the control of Blue tongue disease (BT) in an area which is free from the disease but endemic for a BT virus of vaccinal origin - Tamba Dr. Marco - Solo - MINSAN - 2004 - 63020,00 EUR - 01/07/2005 0.00.00 - 30/06/2007 0.00.00 1 - N0 - CEREV - Tamba Dr. Marco - I 2 - N8 - Reggio Emilia - Dottori Dr. Michele - I 3 - N4 - Modena - Pongolini Dr. Stefano - I 4 - N3 - Forlì - Massi Dr.ssa Paola - I 5 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I First author Tamba, Marco A incidence survey was carried in 2006 out in a montain area of Emilia-Romagna involved since 2004 in natural circulation of vaccinal strain of bluetongue virus serotype 2 (BTVV-2). BTVV-2 seroconversion was detected in 4 out of 1287 cattle tested. BTVV-2 incidence in 2006 was 0.3% lower than values estimated both in 2004 (42.2%) and in 2005 (1.8%). After two years since introduction in the area BTVV-2 is still circulating. Pag. 132 di 300 31/08/2011 ID nr. 4074 Zanardi° G Human Mycobacterium bovis infection in the United Kingdom: incidence, risk, control measures and review of the zoonotic aspects of bovine tuberculosis Osservatorio. - Vol. 12 no 2 ( 2009). - p 4-14 First author Zanardi, Giorgio Human infection with M. bovis in the UK has been largely controlled through pasteurization of cows’ milk and systematic culling of cattle reacting to compulsory tuberculin tests. Nowadays the majority of the 7000 cases of human TB annually reported in the UK are due to M. tuberculosis acquired directly from an infectious person. In the period 1990–2003, between 17 and 50 new cases of human M. bovis infection were confirmed every year in the UK. This represented between 0.5% and 1.5% of all the culture-confirmed TB cases, a proportion similar to that of other industrialized countries. A significant risk of M. bovis infection remains in certain segments of the UK population in the form of (i) continuing on-farm consumption of unpasteurized cows’ milk, (ii) retail sales by approved establishments of unpasteurized milk and dairy products and (iii) occupational exposure to infectious aerosols from tuberculous animals and their carcasses.. ID nr. 4075 Nigrelli° AD, Vantini F, Camoni C, Casappa P Effect evaluation of the aminosidine and gentamicin water medication in postweaning ETEC diarrhoea Atti Convegno SIPAS. - Vol. 35 ( 2009). - p 449-454. - 3 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini ( SIPAS ) (35 : Modena : 1213 Marzo 2009) First author Nigrelli, Arrigo Daniele The Authors verified the best effect on the E.coli post-weaning diarrhoea and on the growth of aminosidine in piglets, in compared with gentamicin. ID nr. 4076 Nigrelli AD°, Vantini F, Camoni C, Casappa P, Effect evaluation of amminosidine and apramycin in feed treatment in post weaning etec diarrhoea Atti Convegno SIPAS. - Vol. 35 ( 2009). - p 444-448. - 4 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini ( SIPAS ) (35 : Modena : 1213 Marzo 2009) First author Nigrelli, Arrigo Daniele The efficacy of an in feed treatment, Amminosidine based, in controlling post-weaning diarrhoea was evaluated. The authors verified the better results of treated piglets in comparison to the ones in feed treated with Apramycin. ID nr. 4077 Merialdi° G, Fontana° MC, Tallarico N,Turci S, Leonelli° R., Galletti° G, Vincenzi E, Rugna G, Bonilauri° P Effect of pre-slaughter diet integration with a protected source of formiate and citric acid (formylr) Pag. 133 di 300 31/08/2011 upon the prevalence of Salmonella spp carrier slaugther pigs Atti Convegno SIPAS. - Vol. 35 ( 2009). - p 437-443. - 15 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini ( SIPAS ) (35 : Modena : 1213 Marzo 2009) First author Merialdi, Giuseppe This field trial was carried out to determine the effects of feed acidification with a protected source of formiate and citric acid (FormylR) upon Salmonella carriage in marketage pigs. A group of pigs from an Italian pig herd with high level of infection with Salmonella was included. Pigs were randomly divided into two groups: the experimental one received for 30-50 days prior to slaughter a commercial diet supplemented with formic acid source (Formyl), and the control pigs received the same diet but unacidifi ed. At slaughter 100 pigs (control group) and 104 pigs (experimental group) were submitted to collection of caecal content and mesenteric lymph nodes for Salmonella isolation using standard procedures. The results revealed a signifi cant decrease of the rate of carriers in the experimental group. ID nr. 4079 Candotti° P, Rota_Nodari° S Straw administration bydispenser in long and tail docked pigs : evaluation of tail and ear biting Atti Convegno SIPAS. - Vol. 35 ( 2009). - p 350-359. - 7 bib ref Meeting annuale della Societa' Italiana di Patologia ed Allevamento dei Suini (SIPAS) (35 : Modena : 1213 Marzo 2009) First author Candotti, Paolo The influence of straw on tail and ear biting in pigs was evaluated in a site 2 commercial farm. 336 pigs tail docked at 2 days of age and 314 pigs not taildocked were divided in 4 groups: group A (straw administered, long tail); group B (no straw, long tail); group C (straw administered, tail docked); group D (no straw, long tail). Straw was given between D0 (day of weaning: 28 days of life) and D47 but not between D48 and D71. Ear and tail lesions were recorded at day 47 and 71. Straw significantly reduced tail lesions in group A compared to group B (p<0.05) while it was administered. After the removal of the straw, the prevalence of tail lesions at T71 did not differ between group A and B. Groups C and D did not differ significantly at T47, while at T71 the prevalence of pigs with tail lesions was higher in group D compared to group C (p<0.05). Lesions at the apex of the ear were significantly higher in group D compared to group B and C both at D47 and D71 (p<0.05). ID nr. 4080 Candotti° P, Rota_Nodari° S Surgical and functional surgery in a lactating sow affected by vulva biting Atti Convegno SIPAS. - Vol. 35 ( 2009). - p 345-348. - 5 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (35 : Modena : 12-13 Marzo 2009) First author Candotti, Paolo In a farrow to finish herd with 300 breeding sows, a granparent Large White sow had her vulva bitten by her piglets in the farrowing crate. The cannibalism induced anatomical changes consisting in a loss of most of the vulva's labias and a subsequent closure of the interglacial sulks resulting in a reduction of the opening to about only 3 mm. The anatomical changes had functional consequences resulting in: an abnormal urinating behaviour, consisting in pollakiuria In order to re-establish a welfare condition and to allow a natural farrowing, the animal underwent successfully a plastic surgery to enlarge the interlabial solcus. Pag. 134 di 300 31/08/2011 ID nr. 4081 Archetti° I, Rota_Nodari° S, Guerra° O, Candotti° P Reference intervals of haematological parameters in weaned piglets and sows Atti Convegno SIPAS. - Vol. 35 ( 2009). - p 314-319. - 22 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (35 : Modena : 12-13 Marzo 2009) First author Archetti, Ivonne Laura ID nr. 4082 Candotti° P, Rota_Nodari° S, Razzuoli° E, Dotti° S, Amadori° M Assessment of the inflammatory response to early weaning in piglets: impact of an oral interferonalpha treatment Atti Convegno SIPAS. - Vol. 35 ( 2009). - p 293-299. - 8 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (35 : Modena : 12-13 Marzo 2009) First author Candotti, Paolo ID nr. 4083 Luppi° A, Bonilauri° P, Mazzoni C, Spaggiari° B, Maioli° G, Leonelli° R, Di_Lecce R, Borri E, Tonon F, Gradellini S, Ferrari E, Dottori° M Diagnostic approach before and after vaccination for PCV2 in a subclinical PCVAD/PMWS Atti Convegno SIPAS. - Vol. 35 ( 2009). - p 249-257. - 12 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (35 : Modena : 12-13 Marzo 2009) First author Luppi, Andrea A field study was conducted to investigate the use of a diagnostic approach, based on lymph-nodal cytology and sera and lymph-nodal Real Time PCR on pigs, after and before the vaccination against PCV2. This approach can help the understanding of PCVAD (Porcine Circovirus Associated Disease) and sub-clinical PCV2 infection herds severity. The diagnostic approach was performed in three different periods, on the set up of health problems, due to PCVAD/PMWS, five months later and after the vaccination. This study showed high sera and lymph-nodal Real Time PCR viral load in 12 weeks old pigs, not always with a confirmatory diagnosis of PCVAD/PMWS, before the vaccination in the herds. 3 weeks old pigs vaccinated didn’t show viremia at 5, 12 and 19 of age. The vaccination and the diagnostic approach results need of further investigations.. ID nr. 4084 Faccini° S, Rosignoli° C, Franzini° G, Nigrelli° AD Preliminary evaluation of importance of DNA extraction method for PCV2 quantitative Real-Time PCR data Atti Convegno SIPAS. - Vol. 35 ( 2009). - p 243-248. - 12 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (35 : Modena : 12-13 Marzo 2009) First author Faccini, Silvia Quantitative Real-Time PCR has become an important tool for PCV2 research and clinical diagnosis. DNA extraction from clinical samples is unquestionably a very critical pre-analytical step. Yield, repeatability, purity, and removal of PCR inhibitors undoubtedly affect quantitative Real-Time PCR results and performances. This Pag. 135 di 300 31/08/2011 study is a first evaluation of how extraction method influences PCV2 quantification in two of the most important clinical samples: serum and lymph node. The latter results to need particular attention due to frequent presence of PCR inhibitors in DNA extracts. ID nr. 4086 Bosi P, Merialdi° G, Bardasi° L, Scandurra S, Vecchi M, Ferro P, Messori S, Nisi I, Casini L, Trevisi P Effect of three different antibiotics on commensal intestinal microflora and on some productive traits: preliminar report Atti Convegno SIPAS. - Vol. 35 ( 2009). - p 219-228. - 15 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (35 : Modena : 12-13 Marzo 2009) An in vivo experiment was performed to study the eff ect of three diff erent antibiotics on intestinal microfl ora composition and on some productive parameters and in weaned piglets. Seventy-two newly weaned conventional piglets were included and randomly assigned to 4 diff erent diets: conventional weaning diet with no antibiotics (C), diet with tilmicosin supplementation (T), diet with amoxicillin supplementation (A) and diet with doxiciclin supplementation (D). Th e experiment had an overall duration of 4 weeks. Antibiotics were added to diets for 3 weeks. During the experiment and at its end, data about average daily gain (ADG) , feed intake (FI), and feed to gain ratio (FGR) were recorded. Fecal samples were collected weekly for Enterobacteriaceae and lactobacilli. Th e groups receiving an antibiotic supplemented diet had signifi cantly 220 higher ADG and FI values, without any impact on FGR. Lactobacilli concentration did not result averagely impaired by antibiotics, but D and T increased it, as compared with A. Conversely Enterobacteriaceae were strongly reduced by the tilmicosin added diet. ID nr. 4087 Franco A, Merialdi° G, Iurescia M, Feltrin F, Lorenzetti R, Zini M, Amoruso R, Buccella C, Bassoli O, Cito G, Cuoghi G, De_Bassa A, Floriani E, Perrone V, Razzini P, Liuzzo G, Battisti A Methicillin-resistant staphylococcus aureus (MRSA): survey at slaughter among holdings from Italy Atti Convegno SIPAS. - Vol. 35 ( 2009). - p 208-211. - 7 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (35 : Modena : 12-13 Marzo 2009) Project PRC2007106 - Prevalence study of methicillin-resistant S. aureus (MRSA) in fattening pigs - Battisti dr. Antonio - UO - MINSAN - 2007 - 0,00 EUR - 29/09/2008 0.00.00 - 28/09/2010 0.00.00 - 2 N1 - Sezione diagnostica provinciale di Bologna - Merialdi Dr. Giuseppe - I A survey to estimate the prevalence of Methicillin-resistant Staphylococcus aureus (MRSA) among holdings of fattening pigs was conducted in Italy in 2008. Herds were selected by a random sampling procedure and sampled at differentslaughterhouses of northern and central Italy. Nasal swabs from batches ofanimals from each holding enrolled were randomly sampled (double-stage samplingtechnique). Suspect isolates from pooled primary cultures were cloned and subsequentlyscreened by PCR for species identifi cation and for the mecA gene. Positiveisolates were submitted to spa-typing and SCCmec typing, according to internationalconsensus protocols. Among the herds surveyed (n=118), a prevalence of 38%was estimated (CI 29-47%, 95% CL). Th e Italian pig isolates showed heterogeneity. ID nr. 4088 Pag. 136 di 300 31/08/2011 Giammarioli M, Canelli E°, Ciulli S, Pellegrini C, Rossi E, De_Mia GM Genetic heterology of the budvirus in Italy XI Congresso Nazionale SIDiLV : Parma, Centro Congressi, Comune di Parma 30 Settembre - 2 Ottobre 2009 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2009]. - p 156-157 -10 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (11. : Parma : 30 Settembre - 2 Ottobre 2009) The genetic heterogeneity of 111 Italian BVDV isolates was investigated by phylogenetic analysis of partial 5’UTR and for selected viruses, of the genomic region encoding autoprotease Npro. Additional sequences of other Italian BVDV isolates were acquired from the GenBank database. At the subgroup level, pair wise similarity and cluster analysis provided a clear-cut assignation to 10 distinct genotypes of 106 isolates typed as BVDV-1 namely respectively BVDV-1a (n=12), BVDV-1b (n=47), BVDV-1d (n=4), BVDV-1e (n=26), BVDV1f (n=5), BVDV-1g (n=4), BVDV-1h (n=7), BVDV-1j (n=1), BVDV-1k (n=2) and BVDV- 1l (n=1). Five isolates were typed as BVDV-2. The results provided evidence of a high BVDV genetic heterogeneity in Italy as a result of the absence of any BVDV systematic control measures. ID nr. 4089 Rota_Nodari°, Archetti° I, Guerra° O, Candotti° P Reference values of haematological parameters in sows Atti Convegno SIPAS. - Vol. 35 ( 2009). - p 199-206. - 23 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (35 : Modena : 12-13 Marzo 2009) First author Rota_Nodari, Sara 41 healthy breeders were selected in commercial farms of Northern Italy. Blood samples were collected from animals and tested for several parameters (Total proteins, Albumine, Globulin, Glucose, Cholesterol, Triglycerides, ß-hydroxybutyrate, Total bilirubin, Alanine aminotransferase, Aspartate aminotransferase, Alkaline phosphatase, gammaglutamyltransferase, Amylase, Urea, Creatinine, Creatine kinase, Lactate dehydrogenase, Calcium, Phosphorus, Magnesium, Sodium, Potassium, Chlorine, Copper, Iron, Zinc). Collected data were used to calculate percentile reference intervals for the selected haematochemical parameters. The differences found in comparing our results with published data suggested that each laboratory should establish reference values and intervals for diagnostic and research purposes. ID nr. 4090 Galletti° E, Merialdi° G, Antonelli A, Brini E, Fusaro L, Sarli G, Fontana° MC, Martelli P Isoimmune thrombocytopenia in neonatal piglets: a case report Atti Convegno SIPAS. - Vol. 35 ( 2009). - p 192-198. - 10 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (35 : Modena : 12-13 Marzo 2009) First author Galletti, Giorgio ID nr. 4091 Spaggiari° B, Merialdi° G, Bonilauri° P, Luppi° A, Leonelli° R, Bonci M, Sandri GP, Dottori° M, Gozio S, Martelli P S.P.E.S. grid: slaugtherhouse lungs evaluation of pig batches from two actinobacillus pleuropneumoniae low seroprevalence herd Atti Convegno SIPAS. - Vol. 35 ( 2009). - p 180-185. - 10 bib ref Pag. 137 di 300 31/08/2011 Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (35 : Modena : 12-13 Marzo 2009) First author Spaggiari, Brunella S.P.E.S. (Slaughterhouse Pleurisy Evaluation System), a chronic pleural lesions evaluationsystem in swine lungs during slaughter line, was applied to fi ve swine batches from two Actinobacillus pleuropneumoniae (App)-low seroprevalence herds. Th e herds had sporadic or not seroconversions, without App infection diff usion and bacterial isolation during the period considered. The evaluation system, consisting in a score ranging from 0 to 4 on the basis of pleural lesions presence, extension and location on the two lungs of an animal, was applied to the considered herds and showed that three batches had animals with pleural lesions scored < 2 not referable to App, and in two batches only one animal, for each batch, was scored 2 and 3 respectively, in a general context of absence of pleural lesion in the remaining batch subjects. APPI index (Actinobacillus pleuropneumoniae Index), which express both App lesions frequency and score mean, resulted to be out of range compared to data obtained in a previous study on a group of Italian herds aff ected by respiratory disease. In conclusion, also in the present study S.P.E.S. has proved to be a highly reliable evaluation system and has confi rmed that chronic pleural dorsocaudal lesions detected at slaughter are mostly a consequence of App induced pleuropneumonia. ID nr. 4092 Salvini S, Guadagnini G, Alborali° L Mucopurulent conjunctivitis 8 outbreaks in fattening pigs Atti Convegno SIPAS. - Vol. 35 ( 2009). - p 174-178. - 7 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (35 : Modena : 12-13 Marzo 2009) ID nr. 4093 Vicari° N, Mandola ML, Centorbi R, Rizzo F, Andreoli° G, Bellotti° M, Magnino° S Detection di Chlamydiaceae in wild birds sampled in Pedmont between 2008-2009 XI Congresso Nazionale SIDiLV : Parma, Centro Congressi, Comune di Parma 30 Settembre - 2 Ottobre 2009 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2009]. - p 268-269. - 9 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (11. : Parma : 30 Settembre - 2 Ottobre 2009) First author Vicari, Nadia The aim of this study was to detect chlamydial microorganisms in samples from wild birds (cloacal swabs and organs). One hundred and twenty samples were analysed by two different realtime and two distinct conventional PCR-RFLP. Nineteen samples tested positive for Chlamydiaceae but negative by species-specific real-time PCR for Chiamydophila psittaci and Chiamydophila abortus. The percentage of positive sampies detected in this survey is similar to the one reported in a recent research carried out in France . Further investigations are under way in order to characterize the inovolved chlamydiae. ID nr. 4094 Vicari° N, Laroucau K, Vorimore F, Barbieri° I, Sachse K, Hotzel H, Fabbi ° M, Labalestra ° l, Magnino ° S Molecular analysis fo Chlamydial isolates from the intestine and cloacal swabs of feral pigeons sampled in Milan and Ferrara XI Congresso Nazionale SIDiLV : Parma, Centro Congressi, Comune di Parma 30 Settembre - 2 Ottobre 2009 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2009]. - p Pag. 138 di 300 31/08/2011 266-267. - 8 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (11. : Parma : 30 Settembre - 2 Ottobre 2009) First author Vicari, Nadia In order to identify and characterize six chlamydial isolates from cloacal swabs and intestines of feral pigeons, several molecular analyses were performed. DNA from the isolates was analyzed using Chlamydiaceae specific real -time PCR, Array Tube DNA microarray and species-specific molecular detection tools, i.e. realtime PCR, MLVA and complete sequences of ompA and 16S rDNA genes. The results obtained and the phylogenetic tree show that our six isolates do not cluster with any known chlamydial species. ID nr. 4095 Magnino° S, Colin P, Dei_Cas E, Madsen M, McLauchlin J, Nöckler K, Maradona MP, Tsigarida E, Vanopdenbosch E, Van_Peteghem C Biological risks associated with consumption of reptile products Int J Food Microbiol. - Vol. 134 no 3 ( 2009). - p 163-175. - 146 bib ref Impact factor: 2,753 First author Magnino, Simone The consumption of a wide variety of species of reptiles caught from the wild has been an important source of protein for humans world-wide for millennia. Terrapins, snakes, lizards, crocodiles and iguanas are now farmed and the consumption and trade of their meat and other edible products have recently increased in some areas of the world. Biological risks associated with the consumption of products from both farmed and wild reptile meat and eggs include infections caused by bacteria (Salmonella spp., Vibrio spp.), parasites (Spirometra, Trichinella, Gnathostoma, pentastomids), as well as intoxications by biotoxins. For crocodiles, Salmonella spp. constitute a significant public health risk due to the high intestinal carrier rate which is reflected in an equally high contamination rate in their fresh and frozen meat. There is a lack of information about the presence of Salmonella spp. in meat from other edible reptilians, though captive reptiles used as pets (lizards or turtles) are frequently carriers of these bacteria in Europe. Parasitic protozoa in reptiles represent a negligible risk for public health compared to parasitic metazoans, of which trichinellosis, pentastomiasis, gnathostomiasis and sparganosis can be acquired through consumption of contaminated crocodile, monitor lizard, turtle and snake meat, respectively. Other reptiles, although found to harbour the above parasites, have not been implicated with their transmission to humans. Freezing treatment inactivates Spirometra and Trichinella in crocodile meat, while the effectiveness of freezing of other reptilian meat is unknown. Biotoxins that accumulate in the flesh of sea turtles may cause chelonitoxism, a type of food poisoning with a high mortality rate in humans. Infections by fungi, including yeasts, and viruses widely occur in reptiles but have not been linked to a human health risk through the contamination of their meat. Currently there are no indications that natural transmissible spongiform encephalopathies (TSEs) occur in reptilians. The feeding of farmed reptiles with non-processed and recycled animal products is likely to increase the occurrence of biological hazards in reptile meat. Application of GHP, GMP and HACCP procedures, respectively at farm and slaughterhouse level, is crucial for controlling the hazards. ID nr. 4096 Spaggiari ° B, Gherpelli ° Y, Carnevali L, Luppi ° A, Bonilauri ° P, Dottori ° M Antibiotic-resistance in Gram-negative bacteria isolated from ear swabs of individually owned dogs and kennel dogs XI Congresso Nazionale SIDiLV : Parma, Centro Congressi, Comune di Parma 30 Settembre - 2 Ottobre 2009 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2009]. - p 250-251. - 8 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (11. : Parma : 30 Pag. 139 di 300 31/08/2011 Settembre - 2 Ottobre 2009) First author Spaggiari, Brunella During routine activity of IZSLER-Reggio Emilia General Diagnostics Laboratory 386 earswabs werecollected from individually owned dogs and kennel dogs. Samples were cultured and bacterial and yeast populations were isolated. Gram-negative bacteria were identified by bacteriological methods and tested for antimicrobial susceptibility. This study aims at determining and comparing antimicrobial susceptibility patterns of Gramnegative bacteria between individually owned and kennel dogs. ID nr. 4097 Rugna° G, Merialdi° G, Ramini° M, Accurso° D, Gelmini° L, Mazzini C, Bacchi M, Pozio E Inactivation of trichinella spiralis larvae in fermented italian salami XI Congresso Nazionale SIDiLV : Parma, Centro Congressi, Comune di Parma 30 Settembre - 2 Ottobre 2009 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2009]. - p 234-235. - 9 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (11. : Parma : 30 Settembre - 2 Ottobre 2009) First author Rugna, Gianluca ID nr. 4100 Merenda° M, Cevidalli AE, Barigazzi° G In vitro susceptibility of 38 strains of A. pleuropneumoniae biotype 1 isolated during 2009 to 16 antimicrobials XI Congresso Nazionale SIDiLV : Parma, Centro Congressi, Comune di Parma 30 Settembre - 2 Ottobre 2009 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2009]. - p 190-191 - 4 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (11. : Parma : 30 Settembre - 2 Ottobre 2009) First author Merenda, Marianna Thirty-eight italian Actinobacillus pleuropneumoniae isolates recovered from pigs with pleuropneumoniae were tested for susceptibility to 16 antimicrobials. All the isolates were susceptible to Ceftiofur and Enrofloxacin and most of them to Danofloxacin, Gentamycin, Tiamulin, Tulatromycin and Tilmicosin. Six isolates were resistant to Florfenicol and a high rate of resistance was observed to Tetracycline. The distribution of isolates over the MIC range observed for Penicillin and Ampicillin, suggested the development of resistance. ID nr. 4101 Luppi° A, Fontana° MC, Galletti° E, Spaggiari° B, Maioli° G, Bonilauri° P, Dottori° M, Trocchi V, Merialdi° G European brown hares (lepus europaeus) toxoplasmosis diangosis XI Congresso Nazionale SIDiLV : Parma, Centro Congressi, Comune di Parma 30 Settembre - 2 Ottobre 2009 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2009]. - p 176-177. - 3 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (11. : Parma : 30 Settembre - 2 Ottobre 2009) First author Luppi, Andrea Pag. 140 di 300 31/08/2011 Six cases of fatal acute toxoplasmosis were observed in hares in different areas of Emilia Romagna region during a period of 4 months. The most characteristic lesion in all hares was a severe splenomegaly. Toxoplasmosis was diagnosed through cytological examination of spleen imprint sampled slides and confirmed by PCR in all hares. Hares should be considered exceptionally susceptible to primary Toxoplasma gondii infection. Epidemiology and prevalence of T. gondii in hares in Northern Italy needs further investigations. The monitoring of the disease in hares could be used to evaluate the level of environmental oocysts contamination in specific geographic areas.. ID nr. 4102 Luppi° A, Maioli° G , Spaggiari° B, Gelmetti° D, Gibelli° L.R, Bonilauri° P, Dottori° M Cyathostoma bronchialis in Stenibach geese XI Congresso Nazionale SIDiLV : Parma, Centro Congressi, Comune di Parma 30 Settembre - 2 Ottobre 2009 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2009]. - p 174-175 - 5 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (11. : Parma : 30 Settembre - 2 Ottobre 2009) First author Luppi, Andrea The gapeworms are small nematodes worms that live in the respiratory tract of some birds. Gapeworms may cause disease in several birds, but are particularly important in pheasants, range-reared turkeys, geese and waterfowl. The gapeworm Cyathostoma bronchialis is a round red worm that attach to the trachea of birds and causes the disease referred to as "gapes". The term describes the open-mouth breathing characteristic of gapeworm-infected birds. C. bronchialis appear bright red sometimes in a Y configuration (the smaller male is attached to the larger female). An excess of mucus occurs as a result of irritation of the tracheal lining. Heavily infected birds usually emit a grunting sound because of the difficulty in breathing and many die from suffocation. The worms can easily block the trachea and bronchi, so they are particularly harmful to young birds. Aim of this paper is to present a case of disease by tracheal worms in eight two months old Steinbach geese. ID nr. 4104 Nigrelli° AD Enzootic enteritis in the suckling piglets with reagard to Clostrdial infection Atti Convegno SIPAS. - Vol. 35 ( 2009). - p 134-141. - 73 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (35 : Modena : 12-13 Marzo 2009) First author Nigrelli, Arrigo Daniele Etiology,pathogenesis ,lesions,syntoms,prophylaxis and management factors of the enzootic enteritis in the suckling piglets are considered. ID nr. 4106 Chiapponi° C, Zanni° I°, Garbarino° C°, Barigazzi° G, Foni° E Evaluation of the CACO-2 cell line for isolation of swine influenza virus compared to standard methods XI Congresso Nazionale SIDiLV : Parma, Centro Congressi, Comune di Parma 30 Settembre - 2 Ottobre 2009 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2009]. - p 112-113. - 10 bib ref Pag. 141 di 300 31/08/2011 Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (11. : Parma : 30 Settembre - 2 Ottobre 2009) Project ESNIP2 - "European surveillance network for influenza in pigs 2 (ESNIP 2). - Van Reet dr.ssa Kristien - UO - CE - 2005 - 300000,00 EUR - 01/01/2006 0.00.00 - 31/03/2009 0.00.00 - 4 - N5 - Parma - Foni Dr.ssa Emanuela - I PRC2005016 - Epidemiologic surveillance of influenza virus circulation in domestic and wild animals: detection, antigenic and genomic characterisation of viruses circulating in susceptible species of domestic animals - Barigazzi Dr. Giuseppe - Solo - MINSAN - 2005 - 05/06/2006 0.00.00 04/06/2008 0.00.00 - 77500,00 EUR 1 - N5 - Parma - Foni Dr.ssa Emanuela - I 2 - N8 - Reggio Emilia - Dottori Dr. Michele - I 3 - N3 - Forlì - Massi Dr.ssa Paola - I 4 - G1 - Reparto di Virologia e Sierologia Specializzata - Moreno Martin Dr.ssa Ana - I 5 - M6 - Mantova - Nigrelli Dr. Arrigo - I First author Chiapponi, Chiara During a swine influenza virus (SIV) monitoring programme, 111 samples were submitted to virus isolation using embryonated chicken eggs (ECE), MDCK cells and CACO-2 cells and 67 SIVs were isolated. The use of CACO-2 cells was able to isolate 100% of H1N1 and H1N2 subtypes, while the isolation rate for H3N2 was 52%. ECE showed to be able to isolate H1N1 in 41%, H1N2 in 9% and H3N2 in 100% of the cases. MDCK cells permitted SIV isolation in 52% of H1N1, 6% of H1N2 and 42% of H3N2. ID nr. 4107 Bardasi° L, Giommi E, Fontana° MC, Galletti° G°, Merialdi° G, Comparison between international standard methods ISO 6579:2002 and ISO 6579:2002/amd.1:2007 for isolation of salmonella in Turkey carcasses XI Congresso Nazionale SIDiLV : Parma, Centro Congressi, Comune di Parma 30 Settembre - 2 Ottobre 2009 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2009]. - p 87-88. - 7 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (11. : Parma : 30 Settembre - 2 Ottobre 2009) First author Bardasi, Lia Salmonella spp. is an important cause of foodborne disease in humans. The aim of the present study was to compare the ability of the international standard method ISO 6579:2002 used for isolation of Salmonella spp. in poultry carcasses (neck skin samples) to ISO 6579:2002/Amd.1:2007 , used for isolation of Salmonella spp. in faeces and environmental samples. 235 samples of turkey neck skin were examined for Salmonella spp.. The results obtained with two method showed no differences: k =0,93 (IC 95%: 0,88 – 0,98). ID nr. 4110 Sozzi° E, Boniotti° B, Thuer B, Hofmann M, Moreno° A, Lelli° D, Fontana° R, Martinelli° N, Lombardi° G, Cordioli° P, Lavazza° A Investigation on the presence of Toggenburg virus (TOV) in Italy XI Congresso Nazionale SIDiLV : Parma, Centro Congressi, Comune di Parma 30 Settembre - 2 Ottobre 2009 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2009]. - p 56-57 - 5 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (11. : Parma : 30 Settembre - 2 Ottobre 2009) First author Sozzi, Enrica Pag. 142 di 300 31/08/2011 The novel bluetongue-like orbivirus, named Toggenburg virus (TOV), was detected in a healthy goat in Italy by serological and virological methods. Experimental infections of goats, sheep and calf, using TOV-positive blood samples, were performed. Animals did not show any clinical or pathological signs but antibodies and viral RNA were detected in blood samples of experimentally infected goats and sheep. Further investigations on the prevalence of this virus in Italy are needed to improve the knowledge on its epidemiology. ID nr. 4112 Giammarioli M, Canelli° E, Ciullis, BazzucchI M, De_Mia gm The extended genetic heterogeneity of BVDV-1: typing of the BVDV isolates from Italy Annual meeting of the national swine fever laboratories : June 15-16th, 2009 Valdeolmos, Spain / [s.n. : s.l., 2009]. Annual meeting of the national swine fever laboratories : Valdeolmos, Spain : June 15-16th, 2009) Bovine viral diarrhoea virus (BVDV), the causative agent of BVD and mucosal disease, is an economically important pathogen of cattle. Up to date, 13 genotypes of BVDV-1 are known (la-1 m) [4] and 2 putative additional genotypes namely In and Io, have been recently reported in Japan [5]. Studies on the prevalence of BVDV in Italy have been conducted providing evidence of circulation of 9 BVDV-1 genotypes [1, 2, 3]. Aim of this work has been to type 111 BVD viruses collected during the period 1995-2009 from 12 Italian regions. Additional sequences of other Italian BVDV isolates were acquired from the GenBank database. The viruses analyzed in this study were from cattle (n=106), sheep (n=4) and buffalo (n=4), mostly originated from farms located in northern Italy which is characterised by the highest cattle population density in the country. The genetic heterogeneity of the Italian BVDV viruses was investigated by phylogenetic analysis of partial 5'-UTR and for selected viruses, of the genomic region encoding autoprotease Npro. Five isolates were typed as BVDV-2. The remaining isolates were typed as BVDV-1 and belonged to 10 distinct genotypes namely respectively BVDV-la (n=12), BVDV-1b (n=47), BVDV-1d (n=4), BVDV-le (n=26), BVDV- 1 f (n=5), BVDV-1g (n=4), BVDV-1h (n=7), BVDV-lj (n=1), BVDV-1k (n=2) and BVDV-11 (n=1). To confirm the grouping found in the 5'-UTR, we analysed in the NPr° region 19 viruses selected on the basis of their bootstrap value. The resulting phylogenetic tree showed that these viruses were clustered in the same phylogenetic branches as for the tree based on the 5'-UTR, with similar bootstrap values. The phylogenetic analysis provided a clear-cut assignation to 10 distinct genotypes of 106 isolates typed as BVDV-1. Most cattle farms were infected by the predominant BVDV-1b and BVDV-le isolates, the others genotypes occurred only sporadically. The results also provided evidence for circulation of BVDV-11 additional genotype, which has been never shown before in Italy. In summary, our study revealed a high BVDV genetic heterogeneity in Italy as a result of the absence of any BVDV systematic control measures and also demonstrated that when bigger collection of BVDV isolates was analysed, higher genetic diversity of viruses may be revealed with possibility to identify new subtypes. ID nr. 4113 Chiapponi° C, Re M, Pierantoni M, Mazza G, Barigazzi° G, Foni° E Study of the contamination by Listeria monocytogenes and Listeria spp in ham plant production by microbiological and biomolecular methods. XI Congresso Nazionale SIDiLV : Parma, Centro Congressi, Comune di Parma 30 Settembre - 2 Ottobre 2009 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2009]. - p 16 -17. - 1 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (11. : Parma : 30 Settembre - 2 Ottobre 2009) First author Chiapponi, Chiara A plant for the production of Parma Ham that had shown cases of Listeria monocytogenes contamination was monitored for the presence of Listeria monocytogenes and Listeria spp by microbiological and bio molecular methods. Along the production process, 193 samples were collected and examined according to FSIS USDA (MLG Pag. 143 di 300 31/08/2011 8.06) method and by Real-Time PCR method. This method was able to detect more positive samples than the microbiological one. The study permitted to identify some critical points of the production process that were corrected or removed. ID nr. 4115 Canelli° E, Tittarelli° C, Barbieri° I, Cerutti G, Pennelli° D, Lavazza° A Identification and genetic caracterization of avian astrovirus XI Congresso Nazionale SIDiLV : Parma, Centro Congressi, Comune di Parma 30 Settembre - 2 Ottobre 2009 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2009]. - p 29 -30. - 6 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (11. : Parma : 30 Settembre - 2 Ottobre 2009) First author Canelli, Elena Astroviruses are non-enveloped SRVs. In this study we analyzed 318 samples of intestinal content conferred to the laboratory since 2008. The samples were analyzed firstly by negative staining electron microscopy (nsEM) and 68 samples were found positive for entero-like or astro-like viruses. All these samples were analyzed with RT-PCR, searching for astrovirus RNA, and, if positive, sequenced and genetically analyzed. Primers used for PCR and sequencing target ORF1b. The obtained data demonstrate that this gene presents a certain genetic variability, even among astroviruses of the same species. ID nr. 4118 Trevisi E, Amadori° M, Bakudila AM, Bertoni G Metabolic changes in dairy cows induced by oral, low-dose interferon-alpha treatment J Anim Sci. - Vol. 87 n 9 ( 2009). - p 3020-3029. - bib ref 31 Impact factor: 2,123 Correspondig author Amadori, Massimo Many apparently healthy cows show marked inflammatory conditions around calving, associated with endocrine and metabolic changes. To prevent the above conditions, a low-dose, oral interferon- (IFN- ) treatment was carried out on periparturient, multiparous dairy cows. In the first trial, 10 cows received 10 IU of IFN- /kg of BW daily during the last 2 wk of pregnancy. In a second trial, 4 cows received 0.5 IU of IFN- /kg of BW daily until d 5 of lactation. In both trials, a homogenous group of untreated dairy cows was used as control. All cows were monitored, during the month before and after calving, for health status, BCS, milk yield, and inflammatory, metabolic, immune, and hematological variables. Compared with control cows, IFN- treated animals showed in both trials a larger decrease of BCS along with decreased milk yield (P < 0.05), increased haptoglobin (P < 0.05) and ceruloplasmin, and a slower increase of negative acute phase proteins (albumin, cholesterol, paraoxonase, vitamin A) after calving. Interferon- -treated animals also showed a larger decrease of plasma glucose and greater values of NEFA, ß-hydroxybutyrate, and reactive oxygen metabolites. There also was evidence of IL-6 and tumor necrosis factor- responses in both groups before calving with a quick decrease thereafter. The IL-6 response appeared in some animals regardless of the IFNtreatment. Results indicate that low-dose IFN- can sustain an inflammatory response in dairy cows and cause notable metabolic changes. This outcome might be explained by the repeated and extended interaction of IFN- at low doses with the oral lymphoid tissues during rumination, as suggested by the observed stability of the cytokine in the rumen milieu; the final inflammatory effect could thus be as large as that of high doses. In addition, the antiflogistic signal of IFN- might be counteracted and inverted by lymphocytes detected in the rumen liquor. ID nr. 4119 Pag. 144 di 300 31/08/2011 Stacchiotti A, Bonomini F, Lavazza° A, Rodella LF, Rezzania R Adverse effects of cyclosporine A on HSP25, alpha B-crystallin and myofibrillar cytoskeleton in rat heart Toxicol. - Vol. 262 ( 2009). - p 192-198. - bib ref 51 Impact factor: 2,836 Small heat shock proteins (sHSPs), such as HSP25 and alpha B-crystallin, are cytoprotective stress proteins exceptionally represented in the heart. They act as myofibrillar chaperones that help actin and desmin to maintain their optimum configuration and stability, thereby antagonizing oxidative damage. The present study examined: (1) the cardiac distribution and abundance of HSP25 and alpha B-crystallin in rats receiving CsA at a therapeutic dosage (15 mg/kg/day) for 42 days and 63 days; (2) the presence of myofibrillar proteins, such as actin, alpha-actinin and desmin following the CsA treatments; (3) the subcellular effects of prolonged CsA exposure on the cardiomyocytes by histopathology and transmission electron microscopy. After 63 days CsA intake, sHSPs translocated from a regular sarcomeric pattern to peripheral sarcolemma and intercalated discs, together with actin and desmin. In contrast, the sarcomeric alpha-actinin pattern did not change in all experimental groups. The abundance of actin and HSP25 was unchanged in every time point of treatment while after 63 days CsA, alpha B-crystallin and desmin levels significantly decreased. Furthermore CsA induced fibrosis, irregular sarcomeric alignment and damaged desmosomes. These findings indicate that following prolonged CsA exposure, the cardiac muscle network was affected. In particular, the translocation of sHSPs to intercalated discs merits special consideration as a direct compensatory mechanism to limit CsA cardiotoxicity. ID nr. 4120 Stacchiotti A, Morandini F, Bettoni F, Schena I, Lavazza° A, Grigolato PG, Apostoli P, Rezzani R, Aleo MF Stress proteins and oxidative damage in a renal derived cell line exposed to inorganic mercury and lead Toxicol. - Vol. 264 ( 2009). - p 215-224. - bib ref 63 Impact factor: 2,836 A close link between stress protein up-regulation and oxidative damage may provide a novel therapeutic tool to counteract nephrotoxicity induced by toxic metals in the human population, mainly in children, of industrialized countries. Here we analysed the time course of the expression of several heat shock proteins, glucose-regulated proteins and metallothioneins in a rat proximal tubular cell line (NRK-52E) exposed to subcytotoxic doses of inorganic mercury and lead. Concomitantly, we used morphological and biochemical methods to evaluate metal-induced cytotoxicity and oxidative damage. In particular, as biochemical indicators of oxidative stress we detected reactive oxygen species (ROS) and nitrogen species (RNS), total glutathione (GSH) and glutathione-S-transferase (GST) activity. Our results clearly demonstrated that mercury increases ROS and RNS levels and the expressions of Hsp25 and inducible Hsp72. These findings are corroborated by evident mitochondrial damage, apoptosis or necrosis. By contrast, lead is unable to up-regulate Hsp72 but enhances Grp78 and activates nuclear Hsp25 translocation. Furthermore, lead causes endoplasmic reticulum (ER) stress, vacuolation and nucleolar segregation. Lastly, both metals stimulate the over-expression of MTs, but with a different time course. In conclusion, in NRK-52E cell line the stress response is an early and metalinduced event that correlates well with the direct oxidative damage induced by mercury. Indeed, different chaperones are involved in the specific nephrotoxic mechanism of these environmental pollutants and work together for cell survival. ID nr. 4121 Rugna° G, Merialdi° G, Bardasi° L, Bassi° S, Dell'Anna° S, Fontana° MC, Galletti°G, Massi° P, Santi A, Tamba° M Survey on Campylobacter spp. prevalence in broiler chickens slaughtered in Emilia-Romagna Pag. 145 di 300 31/08/2011 Region XIX Convegno Nazionale AIVI : la filiera corta: lo stato dell’arte, la tutela del consumatore, le difficoltà e le prospettive : Perugia 24 - 25 - 26 Giugno 2009 / [s.n. : s.l., 2009]. - p 39 Convegno Nazionale AIVI (19 : Perugia : 24 - 25 - 26 Giugno 2009) First author Rugna, Gianluca Thermophilic Campylobacter spp. bave been recognised as a major cause of foodborne infections in many countrics throughout the world. Poultry meat is the most common source for foodborne cases of human campylobacteriosis. An European baseline study (Dec. 516/07/UE) was carried out in the ycar 2008 with the aim ol dctcrmining the prevalence of Campylobacter spp. in broiler chickens and the contamination Ievel on the broiler carcasses. One hundred broiler tlocks were sampled in 4 poultry slaughterhouses in Emilia Romagna and 52% (IC 95`Y,: 41,8`%-62,1`%,) were positive for Campylobacter jejuni/coli. The prevalence of thermophylic Campylobacter on carcasses was 26,0%) (IC 95`%0: 17,7'%0-35,7`%,) and it was correlatcd to finding of these bacteria in the broilers' gut (O.R.: 3,8; I.C. 95(/,: 1,4-9,9). ID nr. 4122 Stacchiotti A, Li_Volti G, Lavazza° A, Rezzani R, Rodella LF, Schisandrin B stimulates a cytoprotective response in rat liver exposed to mercuric chloride Food Chem Toxicol. - Vol. 47 ( 2009). - p 2834-2840. - 50 bib ref Impact factor: 2,321 Mercury represents an ubiquitous environmental toxic metal. Heat shock proteins (HSP) and metallothioneins (MTs) help to protect cells against metal toxicity. Schisandrin B (Sch B), a lignoid from Schisandra chinensis, has been successfully used to treat hepatitis, but its effect against mercury hepatotoxicity remains unknown. We analyzed whether Sch B could protect rat liver against mercuric chloride (HgCl2) intake by analyzing stress proteins and histopathological changes.Wistar rats were administered Sch B (10 mg/kg/day by gavage) or vehicle (olive oil) for 10 days. A subset of each group also received low-dose HgCl2 (0.1 mg/kg/day) for 3 days on days 8–10. Another group received Sch B for 10 days with a single high dose of HgCl2 (1 mg/kg intraperitoneally) on day 10. In rats treated with Sch B and HgCl2, HSP72, HSP25 and MTs were overexpressed in liver zones 1 and 3 irrespective of HgCl2 dosing schedules. Furthermore Sch B alone induced perinuclear rough endoplasmic reticulum alignment and if associated to HgCl2, increased mitochondrial density and dense bodies, all signs of intense detoxification machinery. Taking together these data suggest that dietary Sch B counteracts HgCl2 hepatotoxicity in the rat by stimulating chaperones responsible for anabolic activity. ID nr. 4123 Boniotti° MB, Goria M, Loda° D, Garrone A, Benedetto A, Mondo A, Tisato E, Zanoni° M, Zoppi S, Dondo A, Tagliabue° S, Bonora S, Zanardi° G, Pacciarini° L Molecular typing of mycobacterium bovis strains isolated in Italy from 2000 to 2006 and evaluation of variable-number tandem repeats for geographically optimized genotyping J Clin Microbiol. - Vol. 47 no 3 ( 2009). - p 636-644. - 36 bib ref Impact factor: 3,945 Project PRC2003014 - Planning and development of a M. bovis genotype data base to support epidemiological investigations of TB outbreaks. - Pacciarini Dr.ssa Maria - Capofila - MINSAN 2003 - 98500,00 EUR - 26/04/2004 0.00.00 - 25/08/2007 0.00.00 - 1 - H2 - Reparto di Biologia Molecolare - Pacciarini Dr.ssa Maria - I 2 - G2 - Reparto di Batteriologia Specializzata - Tagliabue Dr.ssa Silvia - I 3 - T1 - OEVRL - Zanardi Dr. Giorgio - I 4 - IZSPLV - Goria Dr.ssa Maria - E First author Boniotti, Beatrice Pag. 146 di 300 31/08/2011 Spoligotyping and exact tandem repeat (ETR) analysis of Mycobacterium bovis and M. caprae isolated strains has been routinely carried out in Italy since 2000 to obtain a database of genetic profiles and support traditional epidemiological investigations. In this study, we characterized 1,503 M. bovis and 57 M. caprae isolates obtained from 2000 to 2006 in 747 cattle herds mainly located in northern Italy. We identified 81 spoligotypes and 113 ETR profiles, while the combination of spoligotyping/ETR analysis differentiated 228 genotypes, with genotypic diversity indices of 0.70 (spoligotyping), 0.94 (ETR-A to -E typing), and 0.97 (spoligotyping/ETR-A to -E typing), respectively. Despite the high degree of resolution obtained, the spoligotyping/ETR methods were not discriminative enough in the case of genotypes characterized by the combination of SB0120, the predominant spoligotype in Italy, with the most common ETR profiles. To obtain a more informative subset of typing loci, 24 mycobacterial interspersed repetitive unit-variable-number tandem repeat (MIRU-VNTR) markers were evaluated by analyzing a panel of 100 epidemiologically unrelated SB0120 isolates. The panel was differentiated into 89 profiles with an overall genotypic diversity of 0.987 that could be also achieved by using a minimal group of 13 loci: ETR-A, -B, and -E; MIRU 26 and 40; and VNTR 2163a, 2163b, 3155, 1612, 4052, 1895, 3232, and 3336. The allelic diversity index and the stability of single loci was evaluated to provide the most discriminative genotyping method for locally prevalent strains. ID nr. 4124 Rota_Nodari° S, Lavazza° A, Candotti° P Technical note: rabbit welfare during electrical stunning and slaughter at a commercial abattoir World Rabbit Sci. - Vol. 17 no 3 ( 2009). - p 163-167. - 10 bib ref Impact factor: 0,863 First author Rota_Nodari, Sara A total of 1020 crossbreed rabbits were individually examined to evaluate their welfare during electric stunning and slaughter in a commercial abattoir. Stunning (the position of electrodes and repetition of applications of current) and sticking (the position, length and depth of the cut) procedures were checked. The rabbits were monitored behaviourally from the application of the current to death. The stunning system was incorrectly applied one hundred and ten times (10.8%). Three rabbits failed to be stunned and were still conscious at sticking. Eighteen rabbits recovered before the onset of death, as shown by their corneal reflex and in a few cases, vocalization (n=3) and head movement (n=1) were observed. Corneal reflex seemed to be the best indicator of recovery at the abattoir. ID nr. 4125 Bellini° S, Alborali° L, Massirio I, Cinotti° S Biosecurity practices, pig-farming system, farm risk level, health status certification Large Anim Rev. - Vol. 15 no 5 ( 2009). - p 205-210. - 8 bib ref First author Bellini, Silvia In Italy pig industry is one of the most important sectors in livestock husbandry, also as a consequence of the economic value of by-product production. Pig farming is mainly concentrated in Northern Regions where, over the past decade a significant increase in pig population has occurred. In the remaining Regions pig farming is less specialized and it is characterized by small-scale holdings mainly for self-consumption or for small-scale trade. The presence of different pig farming systems determines the coexistence of different: management systems, production scales, health and bio-security standards, market requirements and production costs; all these factors are considered relevant for diseases spreading. Theoretically the application of rigorous prevention measures (bio-security) may modulate the risk of disease diffusion but, data emerged during the surveillance and eradication campaigns, indicate that the bio-security measures applied are too weak to guarantee the status of the entire system. This inconvenience could be overcome throughout the assignment of different levels of risk, to be established throughout the collection of objective parameters on the holding. Trade between farms of the same level of risk and sure health standard could guarantee the status of the Pag. 147 di 300 31/08/2011 entire sector and safeguard the economic and market requirements of the different production systems. ID nr. 4127 Matassa R, Vinco° LJ, Diegoli G, Montella L Veterinary training course in farm animal welfare in accordance with EEC 98/58 World Poultry Sci J. - Vol. 2009). - p 54 European Symposium on Poultry Welfare (8th : Cervia, Italy : 18-22 May 2009) Impact factor: 1,398 Veterinary training courses in farm animal welfare in accordance with EEC 98/58 Animal welfare legislation are undergoing continuous changes also due to political decisions often supported by public opinion. The application of new welfare laws however often require adjustments as they are applied in the field especially when dealing with farm animals. In this case legislation application often may influence decisions taken by operators that are very expert in one particular area. This fact may have a deep impact with severe economic consequences on very advanced production systems such as the poultry industry. Poultry production, as a matter of fact, is carried out by highly specialised and huge integrated companies. The Italian government veterinary services are, on the other hand, organised in local health units subdivided in functional areas (A= Live animals. B= Slaughtered animals and C= Other, including animal welfare). This type of organization ensures an accurate veterinary control of the territory, but cannot ensure that all the vets are highly specialised in each production sector. For this reason very often the official veterinarian is not capable to deal with the poultry operators by giving them the right answers and making the right decisions. For this specific reason the general management of animal welfare and veterinary products of the Labour Ministry, of the Health Ministry and Social Policies have financed a training programme on the subject of animal welfare, with the aim of informing and training animal farmers. Each event lasted 3 days. The first morning session was dedicated to general legislation involving all animal farm species. The following sessions were dedicated to specific species. Field private vets have been recruited as speakers in order to ensure the provision of updated data thus providing adequate instruments to adapt legislation to specific field situations. Regarding poultry the following species were treated: broilers, turkeys, layers and minor species. ID nr. 4128 Petracci M, Amadori° M, Archetti° IL, Bianchi M, Montella L, Cavani C Effect of feeding during long transport on welfare of laying pullets World Poultry Sci J. - Vol. 2009). - p 102 European Symposium on Poultry Welfare (8th : Cervia, Italy : 18-22 May 2009) Impact factor: 1,398 A study was conducted to test the effects of a newly-developed transport feed (TF) with high water content on pullets transported more than 12 hours. After preliminary tests on farmed pullets, three individual transport trials were conducted, using a total of 330 animals (Lohmann Brown, 16-wk-old, average body weight: 1.384 kg), transported in 48×54×21 cm (length×width×height), metal wire commercial crates, divided into 2 groups. Control pullets were kept without feed and water and loaded at the usual commercial stocking density (8 pullets/crate; 324 cm²/animal), whereas the experimental group had access to TF and were loaded at the same density considering TF surface (7 pullets/crate; 324 cm²/animal). Birds were placed on commercial lorries and transported for 20 hours. Before catching, and at the end of transport, blood samples (15 animals/group at random) were taken from vena ulnaris superficialis and used to determine hematocrit, total protein, sodium, glucose, plasma corticosterone, heterophil/lymphocyte (H/L) ratio, reactive oxygen metabolites (ROMs), total antioxidant power (OXY-TA) and lisozyme. TF consumption as well as changes in body weight and body (cloacal) temperature were also assessed. Mean TF consumption in experimental groups was 67.0 g/animal (12.5 g dry matter and 54.5 g water) with an energy supply of 0.206 MJ/animal. Pullets that had access to FT had lower body weight losses (6.4 vs. 5.2%; P<0.01) and a lower decrease of body temperature (-0.1 vs. -0.3°C; P<0.05), compared with controls. Moreover, TF pullets showed significantly Pag. 148 di 300 31/08/2011 lower plasma corticosterone, lisozyme, sodium and OXY-TA values as well as a reduced heterophil/lymphocyte ratio. Overall, these findings indicate that TF can reduce negative energy balance and stress in pullets during long-distance journeys. ID nr. 4129 Carra° E, Taddei R, Barbieri° I, Botti° G, Tranquillo° V, Iori° A, Gibelli° L, Cerioli° M, Cavadini° P, Gelmetti° D, Pongolini° S, Capucci° L Evaluation of three rapid diagnostic tests used in bovine spongiform encephalopathy monitoring in Italy J Vet Diagn Investig. - Vol. 21 no 6 ( 2009). - p 830-836. - 16 bib ref Impact factor: 1,403 First author Carra, Elena In 2001, a compulsory active surveillance system was started in the European Union to assess the prevalence of bovine spongiform encephalopathy (BSE) in the cattle population. The aim of the current study was to report on the field performances of 3 rapid tests: a Western blot (WB), a chemiluminescence enzyme-linked immunosorbent assay (ELISA), and an immunochromatographic assay, routinely used at 3 laboratories of the Istituto Zooprofilattico Sperimentale of Lombardia and Emilia Romagna, over 8 years of BSE monitoring activity. A total of 2,802,866 samples from slaughtered animals and 202,453 samples from fallen stock were tested by 1 of 3 tests. Positive results of the rapid tests were confirmed by histopathological examination, immunohistochemistry, and confirmatory WB. The field performances (i.e., initial reactive and false-positive rates) and practical aspects regarding resources and applicability of the tests to high-throughput routine testing laboratories were evaluated. The 3 tests proved to be reliable tools when applied to slaughtered samples, showing no or very low false-positive rates (<1 per 100,000 negative samples tested) and low retesting frequencies (0.02–0.26%). When samples from fallen stock were analyzed, performances of the immunochromatographic assay, and especially the chemiluminescence ELISA, were negatively affected, resulting in higher false-positive and retesting rates. On the other hand, both tests are less expensive, much easier to use, provide more rapid results, and adapt well to application in routine laboratories as compared with WB. In the authors' experience, the immunochromatographic assay was a good compromise between performance and convenience. ID nr. 4130 Pisoni G, Zadoks RN, Vimercati C, Locatelli C, Zanoni° MG, Moroni P Epidemiological investigation of Streptococcus equi subspecies zooepidemicus involved in clinical mastitis in dairy goats J Dairy Sci. - Vol. 92 no 3 ( 2009). - p 943-951. - 27 bib ref Impact factor: 2,486 An outbreak of clinical mastitis was observed in dairy goats due to the zoonotic pathogen Streptococcus equi ssp. zooepidemicus. Affected goats were culled to prevent transmission of infection to other animals or humans. The objective of the study was to determine whether horses on the same farm were the source of the pathogen. Streptococcus equi ssp. zooepidemicus was obtained from milk of 10% of goats in the herd and from feces of 3 of 7 healthy horses that shared pasture and housing with the goats. Isolates of caprine and equine origin had identical biochemical profiles, including the ability to ferment sorbitol and lactose, which distinguishes S. equi ssp. zooepidemicus from S. equi ssp. equi. Sequencing of the 16S–23S intergenic spacer region and results from sodA-seeI multiplex PCR supported identification of isolates as S. equi ssp. zooepidemicus. Based on random amplified polymorphic DNA typing and rpoB and sodA sequencing, caprine isolates were indistinguishable from each other, but distinct from equine isolates. Further analysis of equine fecal samples showed that multiple strains of S. equi ssp. zooepidemicus can be present in a single sample or in sequential samples obtained from a single horse. Failure to detect the mastitis-causing strain in equine feces may indicate that horses were not the source of the mastitis outbreak in goats. Alternatively, the Pag. 149 di 300 31/08/2011 outbreak may be due to presence of multiple S. equi ssp. zooepidemicus strains in equine feces and a failure to detect all strains when analyzing a limited number of isolates per sample. ID nr. 4131 Bellini° S, Cordioli° P, Cinotti° S Swine Vesicular Disease and weakness detected in swine production system Summa anim reddito. - Vol. 4 no 3 ( 2009). - p 31-35. - 9 bib ref First author Bellini, Silvia Swine Vesicular Disease (SVD) is an infectious disease of pigs induced by an Enterovirus of the Picomaviridae family. SVD does not cause severe production losses but it is of major economic importance since control and eradication measures are costly, and nations which are known to have the disease face embargoes on the export of pigs and by products. In Europe in the last decade, SVD has been persistently reported in Italy and for this reason surveillance and eradication activities are in place. In the last 3 years SVD outbreaks have been persistently reported in the non qualified regions but severe outbreaks occurred also in central and Northern Italy. In fact, in 2006 and 2007 the disease was detected in Lombardia while in 2008 the disease spread widely in Umbria (Perugia province). The epidemic in northern areas was characterized by a rapid spread of the condition and difficulties were encountered in eradicating the disease. The paper examines the factors involved in the impairment of the national eradication programme, which are linked to: 1) farm census 2) registration of animal movements 3) qualification of the holding and type of control performed 4) farro biosecurity standard. Suggestions are given to overcome the problems and for the qualification of the holding according to a " level of risU, to be established throughout the collection of objective parameters on the holding. ID nr. 4132 Tamba° M, Dell'Anna° S, Luppi° A, Bonilauri° P, Rugna° G, Dottori° M, Cordioli° P West Nile Disease: an update Prax Vet. - Vol. 30 no 2 ( 2009). - p 5-9. - 12 bib ref First author Tamba, Marco West Nile virus (WNV) is a mosquito transmitted flavivirus. It is widely distributed in Africa the Middle East, southern Europe, and Asia and was recently introduced Io North America. Birds are involved in the cycle of transmission as amplifying hosts, but WNV can infect many species of mammals, as well as amphibians and reptiles. Humans and horses are considered accidental dead-end hosts. but transmission through blood donations, organ transplants, and the intrauterine route have been reported. In Europe, an enhanced surveillance of WN infection in humans, horses, birds, and vectors mav reveal the presence of the virus in different locations. However, very little is known of the ecology and natural history of WN virus transmission in Europe and most WN outbreaks in humans and animals remain unpredictable and difficult to control. ID nr. 4133 Magnino° S, Vicari° N, Boldini° M, Rosignoli° C, Nigrelli° A, Andreoli° G, Pajoro° M, Fabbi° M Detection of Coxiella burnetii in bulk milk of dairy cattle from Lombardy, Italy Large Anim Rev. - Vol. 15 no 1 ( 2009). - p 3-6. - 1 bib ref First author Magnino, Simone We carried out a survey in order to detect Coxiella burnetii, the agent of Q fever, in cows’ bulk tank milk (BTM) Pag. 150 di 300 31/08/2011 sampled in 2007-2008 in 400 dairy herds of three provinces of Northern Italy (Cremona, Mantova, Pavia). With this aim, we employed a PCR assay targeting a segment of the transposon-like genomic region. Overall, 160 BTM samples out of 400 (i.e. 40%) tested positive. We then collected a further BTM sample from several C. burnetii positive herds as well as from C.burnetii-negative herds, for confirming or excluding the result of the first assay. The second sample tested positive and negative, respectively, in about 62 % of positive herds and in about 70% of negative herds. The detection of C. burnetii in cows’ milk has been already documented in the past. The occurrence of the organism in BTM depends on the number of infected lactating cows and on the presence of C. burnetii super-shedders in the herd. An increase or decrease in the number of milkshedder cows will accordingly affect the result of the BTM testing. The effects of the infection on the fertility of cows, as well as the implications for the health of professionally and accidentally exposed humans should be investigated . ID nr. 4134 Luini° M, Benedetti° V, Piccinini R, Vezzoli° F Campylobacter jejuni mammary infection in cattle: case report Large Anim Rev. - Vol. 15 no 2 ( 2009). - p 51-54. - 26 bib ref First author Luini, Mario The contamination of bulk milk from pathogenic microorganisms such as Campylobacter jejuni is assuming more importance as a consequence of the increasing consumption of raw milk. We describe two cases of dairy farms located in Po Valley, characterised by repeated detection of C. jejuni in bulk milk. CASES - In both cases the source of contamination of bulk milk (and consequently of raw milk) was a single udder quarter tinfection of one cow.. Just one infected quarter was able to contaminate the bulk milk of respectively 270 and 180 lactating cows. A persistent infection of the quarter was documented for at least 90 days in one herd, for 30-40 days in the other herd . Antibiotic treatment of the infected cow in the first farm was effective in the cure of mammary infection. DISCUSSION AND CONCLUSIONS - Although C.. jejuni was also detected in the faeces of some animals, the segregation of the subject with mammary infection was effective in eliminating the primary source of contamination, with the result of safe bulk milk. The analysis of pooled milk samples by culture method and PCR, followed by individual testing, are efficient tools for rapid identification of infected subjects. These data demonstrate the importance to consider the possibility of udder infection of even a single cow, as a source of bulk milk contamination, when C.. ..jejuni is repeatedly detected.. ID nr. 4135 Amadori° M, Farinacci M, Begni° B, Faita° R, Podavini° D, Colitti M Effects of interferon-[alfa] on the inflammatory response of swine peripheral blood mononuclear cells J Interferon Cytokine Res. - Vol. 29 no 4 ( 2009). - p 241-247. - 35 bib ref Impact factor: 1,774 Project PRC2005002 - Assessment and modulation of the inflammatory effects of early weaning in the piglet - Amadori Dr. Massimo - Solo - MINSAN - 2005 - 22000,00 EUR - 15/05/2006 0.00.00 14/11/2008 0.00.00 - 1 - G3 - Reparto benessere animale, immunoprofilassi, allevamenti e sperim. Animale - Amadori Dr. Massimo - I First author Amadori, Massimo Interferon-a (IFN-a) at low concentrations had been previously shown to control the expression of inflammatory cytokine genes in swine pulmonary alveolar macrophages. In the first part of this study, cultured swine peripheral blood mononuclear cells (PBMCs) were supplemented with IFN-a at low/moderate concentrations, and then stimulated with lipopolysaccharide (LPS). The expression of IFN-a, IFN- , IL-1ß, TNF-a, and IL-6 genes was determined by real-time PCR. IFN-a at low/moderate concentrations did not significantly reduce the expression of any cytokine gene under study, with clear trends though to a Pag. 151 di 300 31/08/2011 concentration-dependent reduction of IL-1ß gene expression and to a concentration-dependent increase of IFN- gene expression. In vivo, orally administered IFN-a was shown instead to modulate the inflammatory response to early weaning in uncultured PBMCs of specific pathogen-free piglets. As opposed to the in vitro model, the oral IFN-a treatment reduced after weaning the expression of the IFN- gene (P < 0.08) and increased that of the IL-1ß gene (P < 0.05). There was also a trend to a reduced expression of both IL-6 and TNF-a. The above modulation of cytokine genes expression and the greater daily mean weight gain of treated piglets highlight important regulatory properties of oral IFN-a in the response to the weaning stress. ID nr. 4136 Moreno° A, Brocchi° E, Lelli° D, Gamba° D, Tranquillo° M, Cordioli° P Monoclonal antibody based ELISA tests to detect antibodies against neuraminidase subtypes 1, 2 and 3 of avian influenza viruses in avian sera Vaccine. - Vol. 27 no 36 ( 2009). - p 4967-4974. - 25 bib ref Impact factor: 3,298 First author Moreno_Martin, Ana The objective of this study was the development and the evaluation of competitive ELISA assays based on monoclonal antibodies for the detection of antibodies specific for neuraminidase type 1 (N1), 2 (N2) and 3 (N3) in avian sera. A total of 1450 sera from different avian species (854 negative, 185 positive to N1, 136 positive to N2, 219 positive to N3 and 56 positive to other N subtypes sera) were analysed in parallel by the three ELISAs. ROC analyses were performed to enable the selection of best cut-off values and estimation of diagnostic specificity and sensitivity. In addition, the correlation between the new developed ELISAs and the neuraminidase inhibition test was evaluated on a limited number of sera. The validation process of the three ELISAs proved excellent diagnostic performances, with very high specificity and sensitivity, ranging from 99.4 to 99.8% and from 97.6 to 100%, respectively in the three assays. The discriminating potential between antibodies elicited against homologous and heterologous N validates the test for use in “DIVA” assays, to distinguish between vaccinated and infected birds. ID nr. 4137 Zecconi A, Piccinini R, Fiorina S, Cabrini L, Daprà V, Amadori° M Evaluation of interleukin-2 treatment for prevention of intramammary infections in cows after calving Comp Immunol Microbiol Infect Dis. - Vol. 2009). - p 439-451. - 27 ref bib Impact factor: 1,607 A low-dose treatment based on interleukin-2 (IL-2) was investigated for preventing mastitis in dairy cows. The treatment consisted of a single dose of IL-2 injected into the skin region drained by the supramammary lymph node 3–5 days after calving. The study included 45 cows (23 treated and 22 controls) from three commercial dairy herds. The results showed that the treatment had no side effects. The treatment with IL-2 induced the significant increase of several milk markers related to leukocyte and epithelial cell functions, i.e. SCC (somatic cell counts), serum amyloid A (SAA), lactoferrin and NAGase. The increased concentration of milk markers suggested also an activity of IL-2 on epithelial cells, resulting in a higher resistance to invading pathogens. Indeed, the increased efficiency of cells in the udder is supported by the higher frequency of healthy quarters observed in the treated group until day 17–19 after calving, in comparison with the control one. ID nr. 4138 Petrini S, Barocci S, Gavaudan S, Villa° R, Briscolini S, Sabbatini M, Mattozzi C, Barchiesi F, Salamida S, Ferrari° M, Paniccià M, Pezzotti G Detection of porcine circovirus type 2 (PCV2) from wild boars in central Italy Pag. 152 di 300 31/08/2011 Eur J Wild Res. - Vol. 55 no 5 ( 2009). - p 465-469. - 18 bib ref Impact factor: 1,543 The lesions observed in 16 wild boars, hunted in central Italy, led to the suspect that could be related to the infection by porcine circovirus type 2 (PCV2). The animals had macroscopic and histological lesions in the lungs, tonsils, and bronchial lymph nodes. PCV2 was detected in tissue samples by polymerase chain reaction (PCR) and immunohistochemistry and it was isolated in newborn swine kidney cell cultures. From the infected cell culture supernatant, the presence of PCV2 DNA was confirmed by real-time PCR whereas virus particles were observed by electron microscopy. These diagnostic data indicate that PCV2 can infect and cause disease in Sus scrofa subspecies other than domestic swine and it is present in the wild boar population in central Italy. ID nr. 4139 Bertocchi° L Milk cow and welfare law , rules and future development in Europe Inf Zootec. - Vol. 56 no 16 ( 2009). - p 48-51 First author Bertocchi, Luigi Since a long time it seems necessary to rule, as the same of calf farming that is ruled yet, the grown-up dairy cow. The legislation must take into account the animal natural behaviour to meet physiological needs and respect welfare. At the moment, the lower is writing the eighth proof that underlines the relevance of management, housing the education of caw herd. ID nr. 4140 Decaro N, Campolo M, Mari V, Desario C, Colaianni ML, Di_Trani L, Cordioli° P, Buonavoglia C A candidate modified-live bovine coronavirus vaccine: safety an immunogenicity evaluation New microbiol. - Vol. 32 ( 2009). - p 109-113. - 14 bib ref Impact factor: 0,912 Project PRF2007202 - Mammal coronaviruses: molecular epidemiology, vaccine development And implications for animal and human health - Cordioli Dr. Paolo - Capofila - MINSAN - 2007 300000,00 EUR - 01/09/2009 0.00.00 - 31/08/2011 0.00.00 - 1 - U1 - REPARTO VIROLOGIA Cordioli Dr. Paolo - I 2 - Università di Bari - Dipartimento di Sanità Pubblica e Zootecnica - Decaro Prof. Nicola - E 3 - IstitutoZooprofilattico della Sardegna - Oggiano Dr.ssa Annalisa - E 4 - Istituto Zooprofilattico della Sicilia - Guercio Dr.ssa Annalisa - E 5 - Istituo Zooprofilattico delle Venezie - Nardelli Dr. Stefano - E A modified-live vaccine against the respiratory form of bovine coronavirus (BCoV) infection was developed by progressive attenuation of a respiratory strain (438/06-TN). The vaccine was found to be safe as four colostrum-deprived newborn calves remained healthy after oronasal administration of ten doses of the vaccine. The immunogenicity of the vaccine was assessed by intramuscular injection of one vaccine dose to 30 BCoV-antibody negative 2-3-month-old calves. At 30 days post-vaccination, all vaccinated calves displayed high antibody titres against BCoV. Sequence analysis of the S gene of wild-type and cell-adapted 438/06-TN strain detected 10 nucleotide changes, 9 of which were nonsynonymous. ID nr. 4141 Rossi L, Galante F, Fusi E, Luini° M, Dell'Orto V, Baldi A Pag. 153 di 300 31/08/2011 Evaluation of the PL-PG-PA system in relation to quality of bovine milk Vet Res Commun. - Vol. 33 suppl 1 ( 2009). - p 293-295. - 6 bib ref Impact factor: 0,630 ID nr. 4142 Finazzi° G, Daminelli° P, Ducoli° S, Boni° P, Cosciani_Cunico° E Botulinum toxin inactivation during cooking of artificially contaminated potato gnocchi Ind Aliment (Pinerolo). - Vol. 48 ( 2009). - p 38-41. - 8 bib ref Project RELOPATABIODEC - Bio-decontanimation tools and methods applied to food firms - Boni Dr. Paolo - Capofila - REGIONE - 2007 - 285064,92 EUR - 01/10/2007 0.00.00 - 30/09/2010 0.00.00 - 1 I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 2 - Gruppo Impresa Finance srl - Tabladini Dr. Marco - E First author Finazzi, Guido Potato gnocchi are usuolly sold in pockoge reporting the instructions for consumere "cook in boiling salted water unti) rising to the surfoce". The object of this trial was to verify if this treatment is sufficient io inoctivote botulinum toxin in case of gnocchi accidentally contaminated with CI. botulinum. Four different types of gnocchi produced by the some foctory were contaminated with botulinum toxin obtoined from o broth medium of four different CI. botulinum strains. Each type of gnocchi was put in o pan of boiling salted water and different portions were token at floating and also ofter one minute from floating. The botulinum toxin, using o biologicol test conducted on mice, was not found in ony of analysed somples. Therefore the potential possibility of the presence of botulinum toxin in gnocchi remains remote, but it does not represent a risk for consumers who cook this type of product properly. ID nr. 4146 Riu R, Liuzzo G, Merialdi° G, Bardasi° L, Galletti°G, Coccollone A, Giacometti F, Serraino A, Rosmini R Relationship between level of contamination on hide of animals presented for slaughter and contamination on the resultant carcasses XIX Convegno Nazionale AIVI : la filiera corta: lo stato dell’arte, la tutela del consumatore, le difficoltà e le prospettive : Perugia 24 - 25 - 26 Giugno 2009 / [s.n. : s.l., 2009]. - p 44 Convegno Nazionale AIVI (19 : Perugia : 24 - 25 - 26 Giugno 2009) The hide and viscera of cattle entering a slaughter facility are potential sources of contamination of carcasses including significant pathogens such as Escherichia coli O 157: H7, Campylobacter spp. and Salmonella spp. If evisceration is correctly performed, visceral contents do not therefore contribute significandy to the overall contamination of the carcass. However, it is much more difficult to restrict contamination from the hide. The aim of this work is to investigate the relationships between the levels of dirt and contamination on the hide of animals presented for slaughter and the levels of contamination on the resultant carcasses. Cattle were visually inspected in the lairage of 2 abattoirs and assigned to a category ranging from 1 (very clean) to 5 (very dirty) depending on the observed cleanliness of the hide. Samples of hides and carcasses were taken from 50 animals for enumerate total viable counts, Enterobacteriaceae and Escherichia coli. The results show that there is a direct correlation between animai dirtiness and total bacterial count of the carcasses. ID nr. 4147 Moreno° A, Lelli° D, Barbieri° I, Canelli° E, Tamba° M, Avisani° D, Bonilauri P, Cordioli° P Diagnostic approach to a West Nile virus outbreak in Northern Italy on fall 2008 Pag. 154 di 300 31/08/2011 Third annual meeting Epizone : "Crossing borders" : 12-15 May 2009 Antalya, Turkey / [s.l. : s. n., 2009]. - 1 p. - 3 bib ref Annual meeting Epizone (3rd : Antalya, Turkey : 12-15 May, 2009) Project EPIZONE - "Network of excellence for epizootic disease diagnosis and control - "EPIZONE". - Van Rijn dr. Piet - UO - CE - 2005 - 14000000,00 EUR - 01/06/2006 0.00.00 - 31/05/2011 0.00.00 17 - U3 - REPARTO AGENTI AD ALTA DIFFUSIONE E BIOTECNOLOGIE - Bellini Dr.ssa Silvia I First author Moreno_Martin, Ana ID nr. 4148 Amadori° M, Farinacci M, Colitti M Low-dose interferon-alpha treatment can modulate the stress of early weaning in pigs Third annual meeting Epizone : "Crossing borders" : 12-15 May 2009 Antalya, Turkey / [s.l. : s. n., 2009]. - 1 p. - 3 bib ref Annual meeting Epizone (3rd : Antalya, Turkey : 12-15 May, 2009) First author Amadori, Massimo Interferon-alpha (IFN-alpha) at low concentrations had been previously shown to control in vitro the expression of inflammatory cytokine genes in swine pulmonary alveolar macrophages. Owing to the above, we wondered if a similar control action could be exerted by IFN-alpha in piglets during a natural stressing event like early weaning, characterized by a high proflogistic potential. To this purpose, four Specific Pathogen Free (SPF) littermate piglets were given human lyrnphoblastoid interferon-alpha for io days in a row in form of a freeze-dried preparation, mixed in the diet, starting on the day of early weaning at 21 days of age. The other four littermate piglets served as untreated controls; they received the same daily mass of placebo in a separate weaning cage. The expression of IFN-alpha, IFN-gamma, IL-1 beta, TNF-alpha and IL-6 genes was determined in uncultured PBMC by real time PCR. Orally administered IFN-alpha was shown to reduce alter weaning the expression of the IFN-gamma gene (p<o.o8) and to increase that of the IL-i beta gene (p<o.o5). There was also a trend to a reduced expression of both IL-6 and TNF-alpha genes. Relatively to the day of weaning, endogenous IFN-alpha was demonstrated in sera and also PBMC of untreated, control piglets at day +3, as opposed to day -1. The above modulation of cytokine gene expression and the greater daily mean weight gain of IFN-treated piglets highlight important regulatory properties of ora] IFN-alpha treatment at weaning, which probably resemble those of the endogenous cytokine. A greater daily mean weight gain and significant changes in the time-course of the main inflammatory cytokines in sera were also shown in a field trial of oral, low-dose IFN-alpha treatment at weaning. ID nr. 4149 Moreno° A, Sozzi° E, Lelli° D, Vinco° LJ, Lombardi° G Experimental infections of pigs with H7 and H5 avian influenza viruses Third annual meeting Epizone : "Crossing borders" : 12-15 May 2009 Antalya, Turkey / [s.l. : s. n., 2009]. - p 199. - 3 bib ref Annual meeting Epizone (3rd : Antalya, Turkey : 12-15 May, 2009) Project EPIZONE - "Network of excellence for epizootic disease diagnosis and control - "EPIZONE". - Van Rijn dr. Piet - UO - CE - 2005 - 14000000,00 EUR - 01/06/2006 0.00.00 - 31/05/2011 0.00.00 17 - U3 - REPARTO AGENTI AD ALTA DIFFUSIONE E BIOTECNOLOGIE - Bellini Dr.ssa Silvia I First author Moreno_Martin, Ana ID nr. 4150 Pezzoni° G, Stercoli° L, Cordioli° P, Brocchi° E Serodiagnosis of pestiviruses infection by competitive-ELISA based on monoclonal. antibodies and recombinant ns3 Pag. 155 di 300 31/08/2011 Third annual meeting Epizone : "Crossing borders" : 12-15 May 2009 Antalya, Turkey : Programme and Abstract / [s.l. : s. n., 2009]. Annual meeting Epizone (3rd : Antalya, Turkey : 12-15 May, 2009) Project PRC2005012 - Production and characterization of recombinant viral proteins as antigens for serology - Pacciarini Dr.ssa Maria - Solo - MINSAN - 2005 - 68000,00 EUR - 04/09/2006 0.00.00 - 03/09/2009 0.00.00 - 1 - H2 - Reparto di Biologia Molecolare - Pacciarini Dr.ssa Maria - I First author Pezzoni, Giulia Bovine Viral Diarrhea Virus (BVDV), Border Disease virus (BDV) and Classical Swine Fever virus (CSFV) belong to Pestivirus group, the three viruses are antigenically related. The most immunogenic and conserved protein among pestiviruses is the non strutturai protein 3 (NS3), a multifunctional enzyme with at least two domains associated with enzymatic activities: a serine protease activity and an NTPase-elicase activity. Currently, serological assays for Pestiviruses are based on the detection of antibodies against NS3. We expressed the NS3-NTPase-elicase domain (rNS3E) of BVDV NADL strain in a baculovirus/insect celi system, in order to preserve the natural antigenic and strutturai properties of the native antigen. The rNS3E is produced at high yielci and is recognized in immunofluorescence by three anti-NS3 monoclonal antibodies (MAbs) prevìously raised against an Italian isolate of BVDV. According to the results of reciprocal competition the MAbs identify three different epitopes on the rNS3E as well as on the native antigen; their absence of reactivity in Western-blot indicates that the three epitopes are conformation-dependent. When combined as catching and conjugated antibody in sandwich ELISA assays, the three MAbs showed reactivity profiles with the rNS3E identical to those observed with.the native antigen. Overall, this reactivity provided evidente that the recombinant protein reproduces folding and antìgenicity of the native virai protein, providing the conditions for the development of a functional antibody-detection ELISA for pestiviruses. For the test design we chose a competitive ELISA, since it is equivalently applicable to any animal species. In particular, the MAb-based competitive test, routinely used in our laboratory, was modified in order to substitute the BVD virus used as source of NS3 with the rNS3E. MAb 3H4 was confirmed as the best antigen capture antibody to display most antigenic epitopes and MAb 3A3, conjugated with peroxidase, as the best competing antibody. Diagnostic performance of the competitive ELISA based on rNS3E was evaluated by testing bovine and pig sera in parallel with the in-house test for pestiviruses antibodies; an additional test for CSFV-specific antibodies, provided by the National Referente Laboratory for CSF (IZS Perugia), was used as confirmatory test far positive pig seral. Results for 369 bovine sera showed a 100% concordante between the two ELISAs for pestiviruses, wíth 147 positive and 222 negative samples in both tests. Regarding pig sera, out of 2691 field samples examined, 221 scored positive and 2456 scored negative in both ELISAs (99.5 % concordant results). Ali the positive pig sera were elicited by infection with pestiviruses other than CSFV, as none of them reacted in the CSFV-specific ELISA. The capability of recombinant competitive ELISA to recognize allo infection by CSF virus was investigated using a panel of sera from pigs experimenta]ly vaccinated with the CSF China strain and subsequently challenged with a pathogenic virus: results of the immune response detected by the recombinant ELISA consistently corcelated with results provided by the in-house test based on the native viral antigen and by the C5FV-specific ELISA. In conclusion, the rNS3E can successfully substitute the virai antigen in serological diagnosîs of infections cavsed by pestiviruses; the use of a recombinant antigen in association with characterized MAbs makes the productíon and yield of biological reagents safer and easier and ensures improved standardization and reproducibility of serological tests. ID nr. 4151 Calzolari° M, Bonilauri° P, Bellini R, Veronesi R, Pilani R, Defilippo° F, Caimi M, Parco V, Fedeli P, Barbieri° I, Maioli° G, Lelli° D, Lavazza° A, Cordioli° P, Dottori° M Arboviral surveillance program on mosquitoes from "valli di Comacchio" and "parco lombardo della valle del Ticino" (Northern Italy) Third annual meeting Epizone : "Crossing borders" : 12-15 May 2009 Antalya, Turkey : Programme and Abstract / [s.l. : s. n., 2009]. Annual meeting Epizone (3rd : Antalya, Turkey : 12-15 May, 2009) First author Calzolari, Mattia Pag. 156 di 300 31/08/2011 Background Recently Italy was involved in two important outbreaks of human arbovirus diseases (chikungunya and West Nile). In 2oo8 a preliminary surveillance program in two Italian wetlands to check the presence of arboviruses in mosquitoes was activated. In this abstract the preliminary results of this program are presented. Methods Mosquitoes were collected with C02 traps in areas with high density of mosquitoes near Comacchio (Emilia-Romagna region) and in the Ticino River Park (Lombardia region) in the mosquito season (July-October). Mosquitoes were pooled according to date, location and species. For simultaneous detection of arbovirus causing most important human and animai disease the pools obtained were tested with 3 screening PCR for the Flavivirus, Alphavirus and Bunyavirus genus. The amplified fragments were sequenced and analyzed using the Mega 4 program. Virus isolation was carried out on the same pools analyzeci with PCR by celi culture (Vero and C61C36 cells) and embryonated eggs. Results Wetested a total of 31.861 mosquitoes (369 pools), 16.156 (203 pools) from Comacchio and 15.705 (166 pools) from the Ticino River Park. The mosquitoes tested belong to the species Anopheles maculipennis, Aedes vexans, Ae cinereus, Ae albopictus, Ochlerotatus caspius, O geniculatus, O detrirtus, Culex pipiens and Cx modestus. The most abundant species were Cx pipiens (43,2%), O caspius (25,9%), Ae vexans (13,3%), An maculipennis (2,8%). 2 pools of O caspius, captured near Comacchio on July 23rd resulted positive for the presence of Flavivirus RNA in screening PCR, i pool of 0 caspius captured in Lido di Spina (near Comacchio), on JUIy 25th and 1 pool of An maculipennis captured in Ticino Park on August 22nd resulted positive in the Bunyavirus screening PCR. The isolation of viruses produced negative results in alt the samples tested. In BLAST analysis the sequence of the positive amplified fragment from Ticino Park showed maximum homology (95%) with Batai virus (GB:AB257762). The sequence of Bunyavirus from Lido di Spina showed maximum homology (99%) with Marituba virus (GB:AY613923), it also showed a good homology (970/0) with Tahyna virus (GB:U47142). The 2 pools of O. caspius positive for Flavivirus showed light similarity (less than 8o%) with Cx Flavivirus (CuFV) isolated from Cx pipiens in Japan. Conclusion Bunyavirus positive PCR found and sequenced in An maculipennis captured in Tirino Park is probably to ascribe to the presence of a Batai virus, first isolated in 196o from this species of mosquito and not associated with human disease. The sequence of Bunyavirus obtained form Lido di Spina shows a very high homology with a virus (Marituba virus) first isolated in Amazon region in Brazil in the 6os. The second hìghest homology obtained in BLAST analysis is with Tahyna, a virus mainly isolated from Aedes and Ochlerotatus species that caused influenzalike symptoms in humans in Europe. The isolation of the virus failed, therefore a fina) classificatlon of this positive PCR was impossible; however the presence of Tahyna virus is more probable than the presence of Marituba virus in pooled mosquitoes. The detected flaviviruses probably belong to a group of virus that are present only in mosquitoes species, so this virus does not represent a risk for human and animal populations. These positive PCR detections demonstrate that a wide range of arboviruses causing human and animal diseases couid be detected by our surveillance program even in the absence of human or animai disease outbreaks. ID nr. 4152 Lelli° D, Moreno° A, Sozzi° E, Canelli° E, Tamba° M, Capucci° L, Brocchi° E, Cordioli° P Serological investigation for Chickungunya virus in different animal species reared in the area of italian ourbreak in 2007 Third annual meeting Epizone : "Crossing borders" : 12-15 May 2009 Antalya, Turkey : Programme and Abstract / [s.l. : s. n., 2009]. - p 232. - 3 bib ref Annual meeting Epizone (3rd : Antalya, Turkey : 12-15 May, 2009) First author Lelli, Davide ID nr. 4153 Massi° P, Tosi° G, Vandi L, Piva A experimental infection of SPF chickens with a Salmonella hadar field strain and evaluation of the efficacy of a mixture of organic acids and natural flavors (European patent n. 1391155b1) added to feed. Atti della Societa' Italiana di Patologia Aviare 2009 : XLVIII convegno annuale 1-2 Aprile 2009, Forli / [s.l. : s.n., 2009]. - p 103-106. - 1 ref bib Convegno annuale Societa' Italiana Patologia Aviare (SIPA) (48 : Forli' : 1-2 Aprile 2009) First author Massi, Paola Pag. 157 di 300 31/08/2011 To evaluate the efficacy of a mixture of organic acids and natural flavors added to feed at different concentrations (0.3, 1.0 and 5.0 kg/T of feed) an experimental infection of SPF chickens with a Salmonella hadar field strain was carried out. The effects of this treatment on infection and zootechnical parameters are discussed. ID nr. 4154 Vida P, Mammone T, Lavazza° A, Moretto° A European Project “ECORAIP”: European content for public health awareness of rural population on influenza prevention (2007-2008) Atti della Societa' Italiana di Patologia Aviare 2009 : XLVIII convegno annuale 1-2 Aprile 2009, Forli / [s.l. : s.n., 2009]. - p 121-122 Convegno annuale Societa' Italiana Patologia Aviare (SIPA) (48 : Forli' : 1-2 Aprile 2009) The European project “ECORAIP: European content for public health awareness of rural population on avian influenza prevention (2007—2008)” was founded by the Public Health Executive Agency (PHEA) with Agreement n. 20067 (http://ecoraip.eu/). Its main objective was to provide the populations living in rural areas in different European countries with updated and scientific based information and guidelines to prevent and control the outcome of epidemic outbreaks of influenza, including highly pathogenic avian influenza (H5N1 and similar HPAI viruses). ID nr. 4155 Massi° P, Tosi° G An outbreak of Mycoplasma gallisepticum infection in broiler breeders with vertical transmission to progeny: dynamic of the infection and laboratory investigation Atti della Societa' Italiana di Patologia Aviare 2009 : XLVIII convegno annuale 1-2 Aprile 2009, Forli / [s.l. : s.n., 2009]. - p 101-102. - 2 ref bib Convegno annuale Societa' Italiana Patologia Aviare (SIPA) (48 : Forli' : 1-2 Aprile 2009) First author Massi, Paola An outbreak of Mycoplasma gallisepticum in broiler breeders is described. The effects of the vertical transmission on different broiler flocks are evaluated. The laboratory techniques used for the diagnosis and their interpretation are discussed. ID nr. 4156 Taddei° R, Tosi° G, Massi° P Optimization of a PCR method to detect Salmonella spp. in animal feed Atti della Societa' Italiana di Patologia Aviare 2009 : XLVIII convegno annuale 1-2 Aprile 2009, Forli / [s.l. : s.n., 2009]. - p 116-119. - 3 ref bib Convegno annuale Societa' Italiana Patologia Aviare (SIPA) (48 : Forli' : 1-2 Aprile 2009) First author Taddei, Roberta The aim of this study was to optimize a PCR method to detect Salmonella spp. in animal feed. The sensitivity of three different DNA extraction procedure coupled with a traditional PCR protocol, was evaluated and compared to the reference cultural method (ISO 6579(2002)/Cor1 (2004)). Sensitivity of the assays was comparable to the reference cultural method and resulted not related to the extraction protocols tested. Pag. 158 di 300 31/08/2011 ID nr. 4157 Circella E, Pennelli° D, Tagliabue° S, Ceruti R., Giovanardi D, Camarda A Geni di virulenza in avian pathogenic Escherichia coli nel tacchino Atti della Societa' Italiana di Patologia Aviare 2009 : XLVIII convegno annuale 1-2 Aprile 2009, Forli / [s.l. : s.n., 2009]. - p 57-62. - 7 ref bib Convegno annuale Societa' Italiana Patologia Aviare (SIPA) (48 : Forli' : 1-2 Aprile 2009) 50 Escherichia coli (APEC-Avian Pathogenic Escherichia coli) strains and 15 E. coli (AFEC-Avian Faecal Escherichia coli) from turkeys aff ected by colibacillosis and from healthy turkeys were tested for the presence of eight diff erent virulence-associated genes. Besides, APEC were serotyped. O78 has been the most detected serotyped. The presence of the tested virulence genes was prevalently related to the APEC isolates. With reference to serogroup, all the tested O78 resulted iss and irp2 positive. Besides, tsh e cva/cvi were respectively present in 88.9 and 83.3 % of O78. Nevertheless, the fi nding of a not typeable strains equipped with all the eight tested virulence genes among the APEC isolates suggest the importance of a careful and complete characterisation of the isolate to evaluate the real potential pathogenic attitude of the bacterium. ID nr. 4158 Colmegna° S, Invernizzi° A, Mascher° A, Corsale E, Ferrazzi V, Grilli G Microbiological characteristics of poultry meats-results of inspections carried out in the province of Milan Atti della Societa' Italiana di Patologia Aviare 2009 : XLVIII convegno annuale 1-2 Aprile 2009, Forli / [s.l. : s.n., 2009]. - p 63-68. - 5 ref bib Convegno annuale Societa' Italiana Patologia Aviare (SIPA) (48 : Forli' : 1-2 Aprile 2009) First author Colmegna, Silvia Under the qualitative/quantitative microbiological profile (C.B.T., Coliforms, E. coli, S. aureus, Sulphate-reducing Clostrides, B. cereus, Salmonella spp. and Lysteria spp. and Campylobacter spp.), 240 samples of poultry meat (chicken, turkey and quail) were examined and officially considered according to the norms envisioned by the regional plan of the programming and co-ordinating of operations concerning official inspections of Lombardy animal origin and from a few private industries for self-inspection. The CBT always turned out to be less and in line with that reported in the bibliography, as is also the case with coliforms, E. coli, S. aureus, sulphate reducingClostrides and B. cereus. As for Salmonella spp., only 5 samples have turned out positive: one for S. typhimurium and one for S. enteritidis (chicken); only one sample from turkey has turned out positive for S. blokley, and two out of five samples analysed from quail have been positive for S. typhimurium. About 3% of the samples analyzed have turned out positive for Listeria monocitogenes, but within the limits of the law. Research on Campylobacter thermophiles has involved only 50 samples, of which only 5 have resulted positive. These results confirm the high quality of hygiene and cleanliness of poultry meat, in agreement with that reported in the national bibliographyand with respect to EU norms. ID nr. 4159 Tosi° G, Catania S Laboratory diagnosis of avian mycoplasmosis Atti della Societa' Italiana di Patologia Aviare 2009 : XLVIII convegno annuale 1-2 Aprile 2009, Forli / [s.l. : s.n., 2009]. - p 35-40. - 8 ref bib Convegno annuale Societa' Italiana Patologia Aviare (SIPA) (48 : Forli' : 1-2 Aprile 2009) Pag. 159 di 300 31/08/2011 First author Tosi, Giovanni In this review the most common methods for the laboratory diagnosis of avian mycoplasmosis are described: culture methods and agent identification, serological methods (agglutination, ELISA and hemagglutinationinhibition) and molecular methods (in particular the “polymerase chain reaction” or PCR). ID nr. 4160 Vinco° LJ, Ortali G, Gavazzi L Respiratory diseases in turkeys, broilers and layers Atti del XLVIII convegno annuale della Societa' Italiana di Patologia Aviare : 1-2 Aprile 2009, Forli / [s.l. : s.n., 2009]. - p 17-18 Convegno annuale Societa' Italiana Patologia Aviare (SIPA) (48 : Forli' : 1-2 Aprile 2009) First author Vinco, James Leonardo Respiratory diseases still represent one of the major challanges in poultry production. This in spite of the severe increase of enteric disorders driven by debatable decisions (ban of growth promoters, bone and meat meal etc.). In most cases several pathogens are contemporarly involved in respiratory outbreaks thus complicating diagnosis. This paper reports and describes the main respiratory diseases diagnosed in Italy between september 2008 and April 2009. ID nr. 4161 Tamba° M West Nile Disease: an update Atti del XLVIII convegno annuale della Societa' Italiana di Patologia Aviare 2009 : 1-2 Aprile 2009, Forli / [s.l. : s.n., 2009]. - p 19-22. - ref bib 8 Convegno annuale Societa' Italiana Patologia Aviare (SIPA) (48 : Forli' : 1-2 Aprile 2009) First author Tamba, Marco West Nile virus (WNV) is a mosquito transmitted flavivirus. Birds are involved in the cycle of transmission as amplifying hosts, but WNV can infect many species of mammals, as well as amphibians and reptiles. Humans and horses are considered accidental dead-end hosts, but transmission through blood donations, organ transplants, and the intrauterine route have been reported. In Europe, an enhanced surveillance of WN infection in humans, horses, birds, and vectors may reveal the presence of the virus in different locations. However, very little is known of the ecology and natural history of WN virus transmission in Europe and most WN outbreaks in humans and animals remain unpredictable and difficult to control. ID nr. 4162 Amadori° M, Razzuoli° E, Farinacci M, Colitti M Low-dose interferon-alpha treatment can modulate the stress of early weaning in pigs Annual meeting Epizone : November 19-20, 2009 Maisons - Alfort : Theme 5 / [s.l. : s. n., 2009]. - 1 p. Meeting Epizone : Maisons - Alfort : November 19-20, 2009) First author Amadori, Massimo Interferon-alpha (IFN-alpha) at low concentrations had been previously shown to control in vitro the expression of inflammatory cytokine genes in swine pulmonary alveolar macrophages. Owing to the above, we wondered if a similar control action could be exerted by IFN-alpha in piglets during a natural stressing Pag. 160 di 300 31/08/2011 event like early weaning, characterized by a high proflogistic potential. To this purpose, four Specific Pathogen Free (SPF) littermate piglets were given human lyrnphoblastoid interferon-alpha for io days in a row in form of a freeze-dried preparation, mixed in the diet, starting on the day of early weaning at 21 days of age. The other four littermate piglets served as untreated controls; they received the same daily mass of placebo in a separate weaning cage. The expression of IFN-alpha, IFN-gamma, IL-1 beta, TNF-alpha and IL-6 genes was determined in uncultured PBMC by real time PCR. Orally administered IFN-alpha was shown to reduce alter weaning the expression of the IFN-gamma gene (p<o.o8) and to increase that of the IL-i beta gene (p<o.o5). There was also a trend to a reduced expression of both IL-6 and TNF-alpha genes. Relatively to the day of weaning, endogenous IFN-alpha was demonstrated in sera and also PBMC of untreated, control piglets at day +3, as opposed to day -1. The above modulation of cytokine gene expression and the greater daily mean weight gain of IFN-treated piglets highlight important regulatory properties of ora] IFN-alpha treatment at weaning, which probably resemble those of the endogenous cytokine. A greater daily mean weight gain and significant changes in the time-course of the main inflammatory cytokines in sera were also shown in a field trial of oral, low-dose IFN-alpha treatment at weaning. ID nr. 4163 Fabbi° M, Messeri D, Vicari° N, Merlo LM, Pierozzi C, Talini M, Perelli G, Wanderlingh W An outbreak of tularaemia in Tuscany, Central Italy, linked to a natural spring water 6th International Conference on Tularemia 2009 : Tularemia Network, September 13 - 16, 2009 Berlin, Germany / [s.l. : s. n., 2009]. - p 108 ( International Conference on Tularemia (6th : Berlin, Germany : September 13-16, 2009) First author Fabbi, Massimo Aims: We report an outbreak of tularaemia occurred in the Italian province of Pistoia, Tuscany, linkec to a natural spring water. Methods: Between April 2007 and March 2008, 43 cases of tularaemia were confirmed by clinical signs and serological analysis by tube agglutination test. Most cases (n = 38) occurred between December 2007 and March 2008. The probable source of infection was natural spring water collected from a small cement basin at about 950 m of altitude. Water from the spring was usually collected by resident people and tourists, stored in containers and consumed at home. Water samples from the spring were collected twice, on February 15th and March 4th, 2008 and tested for Francisella tularensis by PCR, microbiogical methods and mouse inoculation. Results: Out of the 43 confirmed cases, 34 (79 %) had been exposed to a common source of water The most frequently clinical presentation observed was a cervical lymphadenopathy and tonsillitis and sore throat were observed in a few cases. Antibodies titres of confirmed cases ranged from 1:5C to 1:1,600. Fransisella tularensis subsp. holarctíca (type B) was demonstrated both times in the natural spring water by PCR and mice inoculation. Direct culture of the organism from water was unsuccessfull. The outbreak was brought under control after the demolition of the cement basin and the restoration of the water source as stream. Conclusions: This large epidemie occurred about 20 years after two last important outbreak of Tularaemia recorded in northern and centra) Italy (Liguria and Tuscany regions) and confirms the circulation of Fransisella tularensis in Tuscany. Nevertheless further investigations are needed to explain the route of contamination and the environmental characteristics that could have maintained or supported the presence or the replication of Francisella tularensis in the natural spring waters.. ID nr. 4164 Razzuoli° E, Villa° R , Sossi° E, Amadori° M Evaluation of the interferon-alpha response in pigs after weaning 3rd European Veterinary Immunology Workshop (EVIW) : 10th - 13th September 2009, Berlin, Germany : Programme & book of abstract / [s.l. : s. n., 2009]. European Veterinary Immunology Workshop (3th : Berlin, Germany : 10th - 13th September 2009) Project PRC2005002 - Assessment and modulation of the inflammatory effects of early weaning in the piglet Pag. 161 di 300 31/08/2011 - Amadori Dr. Massimo - Solo - MINSAN - 2005 - 22000,00 EUR - 15/05/2006 0.00.00 14/11/2008 0.00.00 - 1 - G3 - Reparto benessere animale, immunoprofilassi, allevamenti e sperim. Animale - Amadori Dr. Massimo - I First author Razzuoli, Elisabetta Piglets often show an interferon (IFN)-alpha response in serum after early weaning. This issue was investigateti in a field trial on sg pigiets weaned at either 22 or 28 days. Ali the pigs remained healthy and showed the expected weight gains. A low-titered IFN-alpha response was detected in many sera at day +6 alter weaning. The antiviral activity on MDBK cells could be blocked by a monoclonal antibody to porcine IFNalphai. By gel filtration chromatography, the antiviral activity of sera could be traced back to three components of apparent molecular mass 27/18ho kDa, respectively. A small percentage of peripheral blood mononuclear cells (PBMC) from severa) pigiets at day +6 were also positive in a flow cytometry assay for intracellular porcine IFN-alpha. The prevalente of IFN alpha-positive PBMC showed no evident correlation with the serum IFN-alpha response. The expression of porcine IFN-alpha genes was investigateti by RT-Real Time PCR at days -1 and +6 in PBMC of 8 piglets. At day -i, the IFN alphas, alpha6 and alphaiz genes were shown to be expressed in 7 out of 8 pigiets; the IFN alphas, alpha7, alphan, alphaz and alpha4 genes were expressed in fewer pigs. On the contrary, ali the above genes were not expressed at day +6.Our results are in agreement with previous reports about constitutive expression and secretion of IFN-alpha. These findings highlight the importante of type I IFNs as homeostatic agents in the response to environmental stressors. ID nr. 4165 Catalani E, Amadori° M, Vitali A, Bernabucci U, Nardone A, Lacetera N Heat shock proteins 72, iimmunological and metabolic parameters in peri-parturient dairy cows 3rd European Veterinary Immunology Workshop (EVIW) : 10th - 13th September 2009, Berlin, Germany : Programme & book of abstract / [s.l. : s. n., 2009]. - 1 p. European Veterinary Immunology Workshop (3th : Berlin, Germany : 10th - 13th September 2009) The present study was aimed at assessing whether the peri-parturient period is associated with changes of intracellular (IC) or plasma inducible heat shock proteins (Hsp) 72 kQa, and to establish the relationships between Hsp72, immunological and metabolic parameters in high yielding dairy cows. The study was carried out in a commercial dairy unit on 3S Hoistein cows. Three, two and one week before the expected calving date, and one, two, three, four and five weeks alter calving, the body condition score (BCS) of cows was established, and individual blood samples were taken to measure peripheral blood mononuclear ceil (PBMC) concentrations of Hsp72, proliferation of PBMC stimulated with Iipopoiysaccharide (LPS), and plasma concentrations of Hsp72, glucose and nonesterified fatty acids (NEFA). After calving, the IC and plasma concentrations of Hsp72, and plasma NEFA increased significantly, whereas significantly overvalues were detected for BCS, plasma glucose and proliferative response of PBMC to IPS. Furthermore, several significant correlations were found among thee parameters. The time-course of IC and plasma Hsp72 during the peri-parturient period has not been described before either in dairy cows or in other species. Conversely, immunological and metabolic changes recorded in this study are in line with previous findings referred to periparturient dairy cows. Further studies are needed to ascertain possible cause and effect relationships between changes of Hsp72, immune and metabolic parameters, in dairy cows around calving.. ID nr. 4166 Simoni° M, Berneri° R, Pellegrini° E, Ferretti° D, Piro R, Sangiorgi° E Assessing olive oil : quality using FTNIR spectroscopy Euroanalysis 2009 : 6 - 10 September 2009 Innsbruck, Austria : Abstracts / [s.l. : s. n., 2009]. Euroanalysis : Innsbruck, Austria : 6 - 10 September 2009) First author Simoni, Massimo Quality assessment of final foodstuffs is a fundamental parameter in food production in order to maintain high Pag. 162 di 300 31/08/2011 quality products. Olive oil, especially extra virgin olive oil, is one of the well recognized important component of a modern diet, due to its healthy and nutritional quality. Several different analysis are required by official methods, like COI methods and EC Regulations 2568/1991 methods to distinguish among the different olive oil categories and to verify oil quality; they appear to be very complicated, time spending and expensive. More attractive are alternative and non destructive techniques such as spectroscopy. Aim of this work was to verify the possibility of NIR spectroscopy in assessing oil quality. NIR analysis were performed using a Fourier transform-NIR spectrometer (NIRFlex N-500, Búchi Laboretechnick AG, Flawill, Switzweriand) in the 4,00010,000 cm-' range at 8 cm-' resolution with NIRCal 5.2 software for calibration. Samples were analysed using quarti cells (5 mm path length) in transmittance mode. Every spectrum was a 8 scans average. 160 oil samples coming from different italian regions were analyzed. Good correlations with chemical analysis were obtained for lipid composition (miristic, palmitic, heptadecanoic, stearic, arachidic, behenic, lignoceric, palmitoleic, heptadecenoic, oleic, eicosenoic, linoleic and linolenic acids), K 232, K270, AK, peroxides and acidity; that means the possibility to have a rapid "screening" for virgin olive oil because these analysis are required, along with organoleptic analysis, to establish the trueness of a virgin olive oil. Further attempts were made to have good correlations for other, more specific, features, like tocopherols, poliphenols and antioxidants moieties. According to our results, NIR spectroscopy seems to be a promising technique for oil quality index. ID nr. 4167 Simoni° R, Berneri° R, Lorandi° D, Ferretti° D, Piro° R, Sangiorgi° E Using spectroscopy FTIR analysis in honey characterization and official parameters determination Euroanalysis 2009 : 6 - 10 September 2009 Innsbruck, Austria / [s.l. : s. n., 2009]. Euroanalysis : Innsbruck, Austria : 6 - 10 September 2009) First author Simoni, Massimo Honey is very important in the modern diet due to its nutritional features, its genuineness and healthiness. Honey composition is quite simple but its analysis is complicated by the different techniques implicated, e.g. refractometry and conductivity for moisture and ash determinations, liquid chromatography for hydroxymethylfurfural and sugars determinations, enzymatic reaction for diastase content and titration for acidity content determination, whereas FTIR spectroscopy allows to have many parameters with a single determination and only dilution as sample preparation. Aim of this work was to evaluate the effectiveness of FTIR analysis in honey characterization and official parameters determination. An IR Fourier transformspectrometer for liquid was used (Milkoscan FT2, Foss Electric) with three waves lengths between 240 and 1299 nm (250-405 nm, 445-460 nm e 735-770 nm), with WINISI II 1.50 software for data elaboration. Honey samples, 2470 at all, were from national competition selections. For parameters calibration sets from 754 (moisture) to 364 samples (minor sugars) were used. Honey samples were diluted with water and analyzed for the following parameters: moisture, fructose, glucose, sucrose, HMF, diastase, Pfund color, minor sugars (erlose, maltose, isomaltose, maltulose, melezitose, rhamnose, raffinose, threalose, turanose), proline, conductivity and polarizer. The principal constituents curves showed good correlations whereas the minor carbohydrates ones looked promising. With IR technology it was possibie to verify the principal official requirements and a qualitative valuation of honey quality in a quick and cheap mode. It was even successfully possibie, for some monolloreal honeys to compare FTIR data with European monofioreal honey profiles (L.Persano Oddo, Apidologie 35, 2004). Methylantranilate is a marker for citrus honey and promising correlations were obtained between FTIR and chemical analysis, showing, also in this case, the possibility to obtain, in a cheap and quick manner, the most part of official parameters and monofloreal features determination. ID nr. 4168 Brookes S, Nunez A, Clifford D, Essen S, Irvine R, Van_Reeth K, Untz-Simon G, Loeffen W,, Foni° E, Larsen L, Matrosovich M, Bublot M, Garcia J, Beer M, Cattoli G, Brown I Infection dynamics of the current novel swine-like' human influenza A/H1N1 in pigs: A/California/07/09 Pag. 163 di 300 31/08/2011 8th International Congress of Veterinary Virology : 23rd - 26th August 2009 Budapest - Hungary : 20 years of ESVV: Integrating Classical and Molecular Virology : Programme & proceeding / [s.l : s.n., 2009]. - p 42 - 3 bib ref International Congress of Veterinary Virology (8. : Budapest - Hungary : 23rd - 26th August 2009) ID nr. 4169 Chiapponi° C, Zanni° I, Garbarino° C, Barigazzi° G, Foni° E Evaluation of the CACO-2 cell line for isolation of swine influenza virus compared to standard methods 8th International Congress of Veterinary Virology : 23rd - 26th August 2009 Budapest - Hungary : 20 years of ESVV: Integrating Classical and Molecular Virology : Programme & proceeding / [s.l : s.n., 2009]. - p 186 - 4 bib ref International Congress of Veterinary Virology (8. : Budapest - Hungary : 23rd - 26th August 2009) Project PRC2005016 - Epidemiologic surveillance of influenza virus circulation in domestic and wild animals: detection, antigenic and genomic characterisation of viruses circulating in susceptible species of domestic animals - Barigazzi Dr. Giuseppe - Solo - MINSAN - 2005 - 77500,00 EUR - 05/06/2006 0.00.00 - 04/06/2008 0.00.00 - 1 - N5 - Parma - Foni Dr.ssa Emanuela - I 2 - N8 - Reggio Emilia - Dottori Dr. Michele - I 3 - N3 - Forlì - Massi Dr.ssa Paola - I 4 - G1 - Reparto di Virologia e Sierologia Specializzata - Moreno Martin Dr.ssa Ana - I 5 - M6 - Mantova - Nigrelli Dr. Arrigo - I First author Chiapponi, Chiara During a swine influenza virus (SIV) monitoring programme, 104 samples were submitted to virus isolation using embryonated chicken eggs (ECE), MDCK cells and CACO-2 cells and 60 SIVs were isolated. The use of CACO-2 cells was able to isolate 100% of H1N1 and H1N2 subtypes, while the isolation rate for H3N2 was 50%. ECE showed to be able to isolate H1N1 in 44%, H1N2 in 11% and H3N2 in 100% of the cases. MDCK cells permitted SIV isolation in 56% of H1N1, 3.5% of H1N2 and 38% of H3N2. ID nr. 4170 Grazioli° S, Pezzoni° G, Cordioli° P, Brocchi° E Validation of a competitive ELISA for serodiagnosis of PRRS based on recombinant N-protein and monoclonal antibody 8th International Congress of Veterinary Virology : 23rd - 26th August 2009 Budapest - Hungary : 20 years of ESVV: Integrating Classical and Molecular Virology : Programme & proceeding / [s.l : s.n., 2009]. - p 193 - 1 bib ref International Congress of Veterinary Virology (8. : Budapest - Hungary : 23rd - 26th August 2009) Project PRC2005012 - Production and characterization of recombinant viral proteins as antigens for serology - Pacciarini Dr.ssa Maria - Solo - MINSAN - 2005 - 68000,00 EUR - 04/09/2006 0.00.00 - 03/09/2009 0.00.00 - 1 - H2 - Reparto di Biologia Molecolare - Pacciarini Dr.ssa Maria - I First author Grazioli, Santina ID nr. 4171 Pezzoni° G , Stercoli° L, Cordioli° P, Brocchi° E Recombinant NS3 and monoclonal antibodies for serodiagnosis of pestiviruses infection by competitive ELISA 8th International Congress of Veterinary Virology : 23rd - 26th August 2009 Budapest - Hungary : 20 years of ESVV: Integrating Classical and Molecular Virology : Programme & proceeding / [s.l : s.n., 2009]. - p 74 - 2 bib ref International Congress of Veterinary Virology (8. : Budapest - Hungary : 23rd - 26th August 2009) Pag. 164 di 300 31/08/2011 Project PRC2005012 - Production and characterization of recombinant viral proteins as antigens for serology - Pacciarini Dr.ssa Maria - Solo - MINSAN - 2005 - 68000,00 EUR - 04/09/2006 0.00.00 - 03/09/2009 0.00.00 - 1 - H2 - Reparto di Biologia Molecolare - Pacciarini Dr.ssa Maria - I First author Pezzoni, Giulia ID nr. 4172 Pezzoni° G, Brocchi° E A Baculovirus expressed NS3 protein of bovine viral diarrhea virus displays conformational and antigenical properties as the native protein 8th International Congress of Veterinary Virology : 23rd - 26th August 2009 Budapest - Hungary : 20 years of ESVV: Integrating Classical and Molecular Virology : Programme & proceeding / [s.l : s.n., 2009]. - p 205 - 1 bib ref International Congress of Veterinary Virology (8. : Budapest - Hungary : 23rd - 26th August 2009) Project PRC2005012 - Production and characterization of recombinant viral proteins as antigens for serology - Pacciarini Dr.ssa Maria - Solo - MINSAN - 2005 - 68000,00 EUR - 04/09/2006 0.00.00 - 03/09/2009 0.00.00 - 1 - H2 - Reparto di Biologia Molecolare - Pacciarini Dr.ssa Maria - I First author Pezzoni, Giulia ID nr. 4173 Sarli G, Ostanello F, Morandi F, Fusaro L, Gnudi M, Bacci B, Nigrelli° A, Alborali° L, Dottori° M, Vezzoli° F, Barigazzi° G, Fiorentini° L, Sala V, Leotti G, Joisel F Application of a protocol for the diagnosis of postweaning multisystemic wasting syndrome in Italy Vet Rec. - Vol. 164 ( 2009). - p 519-523. - 29 bib ref Impact factor: 1,240 Samples of superficial inguinal and bronchial lymph nodes, ileum, tonsil and lung were taken from three to five pigs on each of 61 farms with a clinical history of postweaning multisystemic wasting syndrome (PMWS). The samples were examined histologically and by immunohistochemistry for porcine circovirus type 2 (PCV-2). PMWS was diagnosed in two stages: first, an evaluation of the haematoxylin and eosin-stained sections that identified the cases in which the characteristic PCV-2 cytoplasmic inclusion bodies were apparent, and secondly, a conclusive step in which immunohistochemistry was applied to confirm PMWS in the cases in which there were positive immunohistochemical results that coincided with lesions indicative of PMWS in at least one of the lymphoid and/or lung tissues. The location of PCV-2 in specific lesions (cell depletion in lymphoid organs and interstitial pneumonia) confirmed PMWS in 45 of the 61 farms, 31 of which were also infected with porcine reproductive and respiratory syndrome virus. The lymphoid tissues were more reliable than the lungs for the diagnosis of PMWS, both in individual pigs and in groups of pigs, and farm diagnoses based on a group of pigs were more reliable than diagnoses based on single pigs. ID nr. 4174 Boselli E, Rodriguez-Estrada MT, Fedrizzi° G, Caboni MF Cholesterol photosensitised oxidation of beef meat under standard and modified atmosphere at retail conditions Meat Sci. - Vol. 81 ( 2009). - p 224-229. - 29 bib ref Impact factor: 2,183 The effect of the fluorescent light exposure and type of packaging (normal atmosphere and oxygen-rich atmosphere) was evaluated on the oxidation parameters (peroxides and cholesterol oxidation products) of raw beef slices placed in packed vessels and refrigerated. The concentration of COPs in meat treated under modified atmosphere ranged from 0.15 to 0.52 mg/100 g meat (average value of 0.27 mg COPs/100 g meat), which was twice as much as the average COPs content (0.14 mg/100 g) of meat packed under air (0.04–0.27 Pag. 165 di 300 31/08/2011 mg COPs/100 g meat). The main cholesterol oxide was 7k, which represented about one third of the total cholesterol oxides, followed by 7ß-OH (20–25% of total COPs), 7a-OH (about 20%) and ß-epoxy (12–18%). In normal atmosphere, photoxidation was a superficial process, since an inverse correlation between meat slice weight and COPs content on a lipid basis was observed, unlike in a high oxygen (32%) atmosphere. ID nr. 4175 Marzadori° F, Frasnelli° M, Raffini° E, Menotta° S, Fedrizzi° G Evaluation of micro-organisms producing biogenic amines and the concentration of these metabolites in animal origin food stuf fs which could be correlated to food poisoning episodes Ing Aliment. - Vol. 6 no 26 ( 2009). - p 54-62 - 25 bib ref Project PRC2005014 - Evaluation of the presence of biogenic-amines producing microorganisms and of the concentration of these metabolites in animal-origin food with correlation to possible food-poisoning episodes - Marzadori Dr. Fausto - Solo - MINSAN - 2005 - 18997,00 EUR - 02/10/2006 0.00.00 31/01/2008 0.00.00 - 1 - N7 - Ravenna (Lugo di Romagna) - Marzadori Dr. Fausto - I 2 - NA - Reparto Merceologia degli Alimenti di origine animale (Bologna) - Fedrizzi Dr. Giorgio - I First author Marzadori, Fausto We have shown the results using Moellers broth contoining lysine, orgmine and ornithine inoculoted with isolcted batteria from fresh and seosoned sausoges, pork muscle, minced chicken aria freshly minced beef. We then measured the concentrotions of biogenic amines from high pressure liquid chromatogrophs (HPLC).At the seme time, we counted the histamine forming Enterobacteria (HFB) using the Niven test and the histamine value from the high pressure liquid chromotogrophs (HPLC). While we believe thot we have con firmed the validity of using the Moeller broth solution to find micro-orgonism producing biogenic amines, the data given by the Niven test were discordant and there fore couid not be con firmed. From on overall onolysis of our data, we believe thet the totol mesophyle microbic titre and the leve] of Enterobacteria can be used as food sofety indicators to indicate the leve) of risk of biogenic amines in these products os respectively I 10(alla quarta) e 1-10(alla terza) ufc/g. ID nr. 4176 Canelli° E, Luppi° A, Barbieri° I, Sozzi° E, Lelli° D, Cordioli° P Phylogenetic characterization of bovine viral diarrohea virus (BVDV) strains isolated in Northern Italy during the last decade 14th International Symposium for the World Association of Veterinary Laboratory Diagnosticians : 18-20 June Madrid : Abstract / [s.n. : s.l., 2009]. - p 121. - 7 bib ref International Symposium for the World Association of Veterinary Laboratory Diagnosticians (14 : Madrid : 18-20 June) First author Canelli, Elena Bovine viral diarrhoea virus (BVDV) is the causative agent of bovine viral diarrhoea-mucosa) disease (BVDMD) and fit is responsible for considerable economic losses in cattle industry all over the world. On a genetic basis, two different genotypes, BVDV-1 and BVDV-2, are distinguished. Genetic typing of BVDVs is usually based on the genetic diversity of the 5'UTR, NprO and E2 genomic regions. So far, 15 distinct subgroups within BVDV-1, and 2 within BVDV-2 have been detected [2,3]. Here the results of the genetic analysis are reported, based on the partial amplification of the 5'UTR and NprO regions, performed to characterize the BVDV strains isolated in Northern Italy between 1999 and 2008. Genetic relationships of these strains and eventual temporal) and geographical distributions of the prevailing subtypes were also assessed. Material & Methods 128 samples collected during the 1999-2008 period from different cattle farms located in Northern Italy were submitted to the laboratory for routinely virological analysis and tested BVDV positive. Total RNA was extracted directly from the original samples; retro transcription and amplification reactions were performed in a one-step PCR system. The primer pairs used were BE–B2 [1;5] and B32-B31 [7] for the 5'UTR and NprO analysis, respectively. The Npr° analysis was carried out on fifty of the strains in Pag. 166 di 300 31/08/2011 order to confirm the assessment based on the 5'UTR analysis. Following amplification, PCR products of the expected size were purified and sequenced in an automated sequencer using the sure PCR primers. The sequences obtained were aligned with those of representative strains present in GenBank and phylogenetically analyzed. Results Out of the 128 samples analysed 124 were typed as BVDV-1 and 4 as BVDV-2.On the basis of sequence analysis of the 5'UTR region, eight BVDV-1 subtypes and two BVDV-2 subtypes were detected. Within BVDV-1, the overall branching pattern showed that the Northern Italy strains principally clustered into subgroups 1 e (36 strains) and 1 b (51 strains). strains of the BVDV-1 b subgroup formed and ho mogeneous group with an homology value with a median of 97%, while in the BVDV-1 e cluster, at least two divergent groups (homology lower than 92%)were identified. Other strains grouped as BVDV-1 a, d, f, h, g and k (6, 9, 7, 6, 2 and 2 strains respectively). The two strains belonging to BVDV-1 k were compared with strains identified from Switzerland demonstrating an identity of roughly 95%. Following the 5'UTR region analysis, a small group of 5 strains was genetically lowly correlated to all the other subgroups within BVDV-1, but the NprO analysis demonstrated that one belonged to 1 g subgroup, and the others four formed a distinct cluster close to subgroup f. The sequence analysis of the NpfO region of the remaining strains confirmed the results obtained analysing the 5'UTR region. BVDV-2 strains were a II typed as belonging to subgroup b, except for one that fell within subgroup a. Overall, from a first analysis, no interesting correlation was observed regarding the geographical origin of the samples or the year of isolation and their phylogenetic clustering. Discussion &Conclusione Northern Italy, and particularly the Lombardia and Emilia Romagna regions, are highly representative of the Italian situation, with about 37% of all national cattle population heritage. This study confirms the high heterogeneity level of BVDV strains circulating in Italy. Almost all of the strains (1241128, 96,9%) were assigned to the BVDV-1 genotype (8 subgroups), while only four (41128, 3,1 %) to BVDV-2 genotype (2 subgroups). BVDV-1 strains mostly belonged to two main subgroups (1b and 1e}. The high prevalent for BVDV-1 b subgroup is similar to that reported in other European countries such as the Netherlands, Germany, Belgium, and fortifies the hypothesis that this subgroup has an European origin. It was showed that group 1 e could be further divided into at least two clusters, confirming the high variability within this subgroup, already described for Spanish [6] and German strains [4]. We also detected two strains belonging to the subgroup 1 k, until I now described only in Switzerland [5], but no evident epidemiological correlation with those strains has been found. A single group was found to be divergent from all others, and from Npr° analysis fit was considered as forming a separate cluster within subgroup 1 f. Regarding BVDV 2, the low number of isolates agrees with data from other Europeans countries, thus confirming that this genotype has a low importance at least in Europe. The high genetic heterogeneity of BVDVs circulating in Italy is probably linked to the importation of large numbers of potentially infected cattle from other European countries, in association with the Jack of systematic disease control measures. Therefore, phylogenetic studies on circulating strains may contribute to a deeper understanding of the epidemiology and pathogenesis of BVDV infections, and may represent the first step for the development of efficient diagnosis and control strategies. ID nr. 4177 Canelli° E, Luppi° A, Lavazza° A, Sandri C, Magnone W, Pascotto E, Gelmetti° D, Cordioli° P Description of an encefalomiocarditis virus outbreak in an italian zoo: pathological presentation and diagnostic course 14th International Symposium for the World Association of Veterinary Laboratory Diagnosticians : 18-20 June Madrid : Abstract / [s.n. : s.l., 2009]. - p 223. - 7 bib ref International Symposium for the World Association of Veterinary Laboratory Diagnosticians (14 : Madrid : 18-20 June) First author Canelli, Elena Encephalomiocarditis virus (EMCV) is a Cardiovirus belonging to the Picornaviridae family and is worldwide recognized as a pathogen mainly in pigs, but also in non-human primates and in a variety of other wild and domestic animals. Several fatal outbreaks of EMCV involving different species were described in zoos in Australia and USA [1:6]. Rodents are probably the natural host and reservoir of the virus, and may spread the infection to susceptible animals by contaminating feed or water. This work describes the development, lesions and diagnostic course of an outbreak of EMC affecting primates of an Italian zoo. Material ~ Methods The Natura Viva zoo in Bussolengo (Verona, Italy) houses various primates, and hosts the most relevant captive Pag. 167 di 300 31/08/2011 lemur population in Italy. From October 2006 to March 2007, a third of the entire lemur population - a Black lemur (Eulemur macaco macaco), three ring-tailed lemurs (Lemur Gatta), nine red-ruffed lemurs (Varecia variegate rubra), two white-fronted lemurs (Eulemur albifrons), two Barbary macaques (Macaca sylvanus) and two common marmosets (Callithrix jacchus) -lied without showing any apparent clinical sign. The epidemiological investigation revealed nothing significant, but an increased number of rats inside the zoo and deratization procedures in progress. Post mortem examination was performed and selected internal organs (including lung, heart, small and gross intestine, kidneys, liver, brain and spleen) were sampled for diagnostic investigation. For histopathology, portion of the different organs were fixed in 10% buffered formalin, embedded in paraffin and 5 pm-thick sections were stained with haematoxylin-eosin. Immunohistochemistry was performed using a biotin-streptavidin method employing the 3E5 EMCV monoclonal antibody (mAb) produced by IZSLER. Parasitologicalanti bacteriological exams were performed using standard methods. Toxicological examination was focused to detect rodenticidals. For virological analysis, the different organs were homogenised in MEM-A, clarified and inoculated on VERO and BHK21 cells. Some rats were also captured and sampled for virological examination. Results In all cases the clinical presentation was sudden death without any evident symptoms or external lesions. At necropsy, the main lesions were in the cardiorespiratory system: cardiomegaly and grey-white necrotic foci of the myocardium, accumulation of excessive fluid in the body cavities (hydrothorax and ascite ), hydropericardium and severe pulmonary oedema. Histologically, hydropic degeneration with focal areas of necrosis and different degrees of lymphocytes and neutrofilic granulocytes interstitial infiltrations were observed in the myocardium. Degenerated myocardial fibres were hypertrophic, with eosinophilic and amorphous cytoplasm and elongated nuclei showing with clumped chromatin or pyknosis. Examination of the small and gross intestine, kidneys, liver and spleen ditty not show any specific changes. Using immunohistochemistry, EMCV immunopositive myocardiocites were observed in all cases; distribution and intensity of the staining were in accordance with the severity of the histological lesions. All the other organs tested negative. No significant bacteria or parasite were identified from any of the animals and toxicological investigations were all negative; but viral cytopathic effect was detected at 24-72h post-inoculation of pathological tissues on both VERO and BHK21 cells. The isolated virus was identified as EMCV by using both a mAb-based sandwich ELISA and immunoelectronmicroscopy. All sampled rats resulted negative at viral isolation. Discussion & Conclusions This report describes an outbreak of ECMV occurring in zoo's captive primates in Italy and confirms the risk that this virus poses for such animals and their high susceptibility to the infection [1;2;4;5;7]. Thus, in our opinion EMCV should always be included in differential diagnosis when sudden death of primates without any evident symptoms occurs, in particular when myocarditis with myocardial degeneration is reported. Even if ECMV was not isolated from captured rats, rodents should be considered an important risk factor for EMCV infection and their potential role in spreading the virus calls for a regular and adequate application of rodent control programs in zoos. In this case, a rodent control plan was strengthened involving all food storage sites and food preparation areas. Unfortunately, to avoid dangerous stress to the animals it was not possible to verify their serological status. Further investigations will be necessary to asses if, as it has been previously suggested [6], immunity may not be protective against later exposure to this virus. Finally, considering the zoonotic nature of ECMV, these finding are nevertheless of public concern. ID nr. 4178 Lelli° D, Moreno_Martin° A, Lavazza° A, Canelli° E, Sozzi° E, Brocchi° E, Cordioli° P Neuraminidase avian influenza viruses identification using monoclonal antibodies 14th International Symposium for the World Association of Veterinary Laboratory Diagnosticians : 18-20 June Madrid : Abstract / [s.n. : s.l., 2009]. - p 98. - 2 bib ref International Symposium for the World Association of Veterinary Laboratory Diagnosticians (14 : Madrid : 18-20 June) First author Lelli, Davide ID nr. 4179 More SJ, Cameron AR, Greiner M, Clifton-Hadleyd RS, Correia_Rodeia S, Bakker D, Salman MD; Sharph JM, De_Massis F, Aranaz A, Boniotti° MB, Gaffuri° A, Have P, Verlooe D, Woodfordl M, Wierupm M Defining output-based standards to achieve and maintain tuberculosis freedom in farmed deer, with Pag. 168 di 300 31/08/2011 reference to member states of the European Union Prev Vet Med. - Vol. 90 ( 2009). - p 254-267. - 33 bib ref Impact factor: 1,506 Within the European Union (EU), detailed legislation has been developed for cattle, but not deer, to minimise disease risks associated with trade in animals and animal products. This legislation is expressed as inputbased standards, providing a detailed outline of the activity required (for example, testing of animals and application of defined control measures), on the expectation that an adequate output (for example, confidence in freedom) will be achieved. Input-based standards are at odds with the increasing shift towards outputbased standards, particularly in OIE rules governing international trade. In this paper, we define output-based standards to achieve and maintain freedom from tuberculosis (TB) in farmed deer, with reference to EU member states. After considering the probability of freedom achieved for cattle under existing EU legislation, we defined a ‘free farmed deer holding’ as one with a probability of freedom from infection of at least 99%. We then developed an epidemiological model of TB surveillance systems for deer holdings, incorporating different surveillance strategies, including combinations of diagnostic tests, and a variety of different scenarios relating to the potential for introduction of infection. A range of surveillance strategies were identified to achieve and maintain a free farmed deer holding, and worked examples are presented. The surveillance system sensitivity for varying combinations of screening and confirmatory tests in live animals, animals at slaughter and on-farm deaths is also presented. Using a single test at a single point in time, none of the TB tests routinely used in farmed deer is able to achieve an acceptable probability of TB freedom. If repeat testing were undertaken, an acceptable probability of TB freedom could be achieved, with differing combinations of the surveillance system sensitivity, frequency of testing and risk of introduction. The probability of introduction of infection through the importation of infected deer was influenced by the use of a pre-movement test (assumed 90% test sensitivity and negative test results), the TB prevalence in the source herd and the number of animals imported. A surveillance system sensitivity of at least 81% was achieved with different combinations of annual live animal surveillance and surveillance of animals at slaughter or on-farm deaths. This methodology has broad applicability and could also be extended to other diseases in both deer and other species with relevance to trade in animals and animal products. ID nr. 4180 Fabbi M° Tularemia: pathology, zoonotic aspects and bioterrorism XI Congresso Nazionale SIDiLV : Parma, Centro Congressi, Comune di Parma 30 Settembre - 2 Ottobre 2009 : volume degli atti / [s.l. : Societa' Italiana Diagnostica di Laboratorio Veterinaria ( SIDiLV ), 2009]. - p 50-51 Congresso Nazionale Societa' Italiana Diagnostica di Laboratorio Veterinaria (SIDiLV) (11. : Parma : 30 Settembre - 2 Ottobre 2009) First author Fabbi, Massimo Tularemia is a zoonotic disease recognized in more than 70 species of vertebrates, albeit with varying degrees of susceptibility. Mainly affects rodents and lagomorphs (hares, rabbits, beaver, prairie dog, hamster, lemming, squirrel, voles, mice, rats, etc.), with broad spectrum of host (foxes, ferrets, weasels, hedgehogs, cows, sheep, pig, dog, cat, birds). In nature it is usually disease of rodents and lagomorphs in which induce fata] septicemia . The causative agent is Francisella tularensis, a small gram-negative bacteria easily transmissible to humans through various routes with the development of different clinical pictures in different severity. To its characteristics of extreme spread and infectivity is present in the A List of microorganisms employed in bioterrorism. Known for at least a century, the disease is present in North America, Asia and Centrai and Eastern Europe. in Italy there is sporadic or limited in time and space (Emilia-Romagna, Lombardy, Piedmont, Tuscany, Liguria, Umbria). The humans epidemic events in Italy (mainly Tuscany and Liguria) has been linked to contaminated water coming from nonchlorinated and non controlled water systems. Sporadic episodes (Lombardy and Piedmont) are linked to contact with hares or rodents (handling, skinning) or from bites of arthropod vectors (ticks). Attention should be paid to the risk of introduction of the disease through the importation of hares from eastern Europe for restocking because of the endemic situation that persists in these countries in respect of tularemia. Pag. 169 di 300 31/08/2011 ID nr. 4181 Natale A, Patregnani T, Tagliabue° S, Alborali° L, Ferronato A, Bucci G, Toffan C, Ceglie L, Catania S, Bonfanti L Management of a leptospirosis outbreak due to Leptospira interrogans serovar Hardjo in a dairy farm in the Po Valley, Italy Large Anim Rev. - Vol. 15 no 4 ( 2009). - p 153-157. - 11 bib ref During October 2007 a dairy cow serum collected after abortion tested positive to L. interrogans serovar Hardjo (serogroup Sejroe) with a titre of 1:400. After serological confirmation an official outbreak was declared and restrictions measures were put in place (D.P.R. 320/54, O.M. 4 settembre 1985). The active control of the outbreak included direct prophylaxis measures, serological monitoring, molecular and microbiological diagnosis on urine samples collected from serologically positive animals. Antibiotic therapy was administered to positive animals. Based on this acquired experience, our study suggests an alternative approach for reducing the period of sanitary and restriction measures. ID nr. 4182 Bardasi° L, Bonilauri° P, Rugna° G, Galletti° G, Fedrizzi° G, Santandrea G, Gandolfi P, Vecchi G, Merialdi° G Growth of naturally occuring Listeria innocua in coppa di testa XIX Convegno Nazionale AIVI : la filiera corta: lo stato dell’arte, la tutela del consumatore, le difficoltà e le prospettive : Perugia 24 - 25 - 26 Giugno 2009 / [s.n. : s.l., 2009]. - p 47 Convegno Nazionale AIVI (19 : Perugia : 24 - 25 - 26 Giugno 2009) Project PRC2007001 - Determination of quality and safety features based on predictive microbiology and risk assessment of traditional regional food products - Finazzi Dr. Guido CON DELIBERA DG N. 461 DEL 17/09/2010 SOSTITUITO DR. BONI CON DR. FINAZZI - Solo - MINSAN - 2007 - 615000,00 EUR - 01/09/2008 0.00.00 - 31/08/2010 0.00.00 - 1 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 2 - M6 - Sezione diagnostica provinciale di Mantova - Franzini Giuliana - I 3 - M9 - Sezione diagnostica provinciale di Sondrio - Bertoletti Dr.ssa Irene - I 4 - N1 - Sezione diagnostica provinciale di Bologna - Bardasi Dr.ssa Lia - I 5 - N6 - Sezione diagnostica provinciale di Piacenza - Cammi Dr.ssa Giuliana - I 6 - N7 - Sezione diagnostica provinciale di Ravenna (Lugo di Romagna) - Raffini Dr. ssa Elisabetta - I First author Bardasi, Lia Coppa di testa is a traditional cookcd pork salami produced in different ltalian regions. The main raw material is deboned meat of pork head with the addition of tongue and rind. After a long (3-5 h) high temperature (97°C) cooking, additives and flavourings are added and the salami is prepared. After cooling the salami is often portioned and vacuum-packaged. In this study the growth of naturally occurring contaminati on of Listcria innocua in thrce batches of vacuum packaged Coppa di testa, stored at 4°C for 80 days, is described. The average µmax was 0.24 (days-1) and thc average doubling time was 2.87 days. The maximum growth level ranged from 4.90 to 8.17 (log10 cfu/g). Thesc results indicate that Coppa di testa definitely supports the growth of Listeria innocua in the considered storage conditions. Taking into account that at 4°C Listcria monocytogenes strains are associated with higher grow rates than L. innocua, these results emphasize the importance of preventing Listcria monocytogenes contamination in the produetion stages following cooking. ID nr. 4184 Ferrari° M, Borghetti P, Foni° E, Robotti° C, Di_Lecce R, Corradi A, Petrini° S, Bottarelli E Pag. 170 di 300 31/08/2011 Pathogenesis and subsequent cross-protection of influenza virus infection in pigs sustained by an H1N2 strain Zoonoses Public Health. - Vol. 57 ( 2010). - p 273-280. - 28 bib ref Impact factor: 1,912 First author Ferrari, Maura The H1N1, H3N2 and, more recently, H1N2 subtypes of influenza A virus are presently co-circulating in swine herds in several countries. The objectives of this study were to investigate the pathogenesis of Sw/Italy/1521/98 (H1N2) influenza virus, isolated from respiratory tissues of pigs from herds in Northern Italy, and to evaluate its potential cross-protection against the Sw/Fin/2899/82 (H1N1) strain. In the pathogenesis test, eight pigs were intranasally infected with H1N2 virus; at pre-determined intervals, these animals were killed and necropsied, along with eight uninfected animals. In the cross-protection test, sixteen pigs were infected by intranasal (i.n.) and intratracheal (i.t.) routes with either H1N2 or H1N1 virus. Twenty days later, all pigs were challenged (by the same route), with either the homologous H1N2 or heterologous H1N1 virus strains. Control group was inoculated with culture medium alone. On post-challenge days (PCD) 1 and 3, two pigs from each infected group, along with one control pig, were killed. Clinical, virological, serological and histopathological investigations were performed in both the pathogenicity and cross-protection tests. In the pathogenicity test, mild clinical signs were observed in two pigs during 3 and 4 days, respectively. Virus was isolated from two pigs over 6 days and from lung samples of pigs killed on post-infection days 2 and 4. Seroconversion was detected in the two infected animals killed 15 days after infection. In the cross-protection study, mild clinical respiratory signs were detected in all pigs infected with either the H1N2 or H1N1 virus. The virus was isolated from nasal swabs of almost all pigs till 6 days. After the challenge infection, the pigs remained clinically healthy and virus isolation from the nasal secretions or lung samples was sporadic. Antibody titres in H1N1 or H1N2 infected groups were similar, whereas the H1N2 sub-type induced less protection against re-infection by homologous and heterologous virus than H1N1 sub-type. The controls had no signs of the disease. In the H1N2 infected pigs, a reduced number of goblet cells in nasal and tracheal mucosa and small foci of lymphomononuclear cell infiltrates in the submucosa were detected. Furthermore, the goblet cell reduction was related to the time of infection. Diffuse mild interstitial pneumonia was also recorded in pigs infected with the H1N2 virus and challenged with either H1N1or H1N2 pigs. These studies showed the moderate virulence of the H1N2 virus and a partial cross-protection against heterologous infection. ID nr. 4185 Decaro N, Mari V, Campolo M, Lorusso A, Camero M, Elia G, Martella V, Cordioli° P, Enjuanes L, Buonavoglia C Recombinant canine coronaviruses related to transmissible gastroenteritis virus of swine are circulating in dogs J Virol. - Vol. 83 no 3 ( 2009). - p 1532-1537. - 28 bib ref Impact factor: 5,308 Project PRF2007202 - Mammal coronaviruses: molecular epidemiology, vaccine development And implications for animal and human health - Cordioli Dr. Paolo - Capofila - MINSAN - 2007 300000,00 EUR - 01/09/2009 0.00.00 - 31/08/2011 0.00.00 - 1 - U1 - REPARTO VIROLOGIA Cordioli Dr. Paolo - I 2 - Università di Bari - Dipartimento di Sanità Pubblica e Zootecnica - Decaro Prof. Nicola - E 3 - IstitutoZooprofilattico della Sardegna - Oggiano Dr.ssa Annalisa - E 4 - Istituto Zooprofilattico della Sicilia - Guercio Dr.ssa Annalisa - E 5 - Istituo Zooprofilattico delle Venezie - Nardelli Dr. Stefano - E Four canine coronavirus type II (CCoV-II) strains were identified in the guts and internal organs of pups which had died of acute gastroenteritis. The CCoV-II strains were strictly related to porcine transmissible gastroenteritis virus (TGEV) in the N-terminal domain of the spike protein, whereas in the other parts of the genome, a higher genetic relatedness to recent CCoV-II isolates was observed. Experimental infection of dogs with a TGEV-like isolate induced mild gastroenteritis without any systemic involvement. By virus neutralization tests, antigenic differences between reference and TGEV-like CCoVs were found. Our data Pag. 171 di 300 31/08/2011 support the potential recombinant origin of the TGEV-like CCoVs. ID nr. 4186 Losi° CG, Sossi° E, Ferrari° S, Villa° R, Ferrari° M An innovative method for cell line identification and interspecies crosscontraminations: cytochrome B polymerase chain reaction - restriction fragment length polymorphism analysis 42° International Symposium of animal production "New analytical technologies : tools and implementation strategies in animal science" / [s.l. : s.n., 2009]. - p 121-130. - bib ref 9 International Symposium of animal production (42 First author Losi Claretta_Gioia One of the major problems in cell culture technology is the misidentification or crosscontaminations of cell lines. According to that, the authentication of all cell lines collected in the Cell Culture Center in Brescia is routinely performed with the aim to confirm the species of origin of each substrate. Currently, this investigation is performed by isoenzyme analysis: however, this method displays several disadvantages such as it is time consuming, it produces variable results and it is difficult to standardize. The need to improve isoenzyme analysis led to the development of a novel technique based on the application of a Polymerase Chain Reaction-Restriction Fragment Length Polymorphism analysis to a portion of cytochrome b. This method allows to identify 30 different animal species and to detect interspecies cross contaminations with a sensitivity at least similar to that of isoenzyme analysis. ID nr. 4187 Cordioli° P Diagnostic methods in avian viral infections Atti della Societa' Italiana di Patologia Aviare 2008 : XLVII convegno annuale 2 Ottobre 2008, Forli / [s.l. : s.n., 2008]. - p 80-83 Convegno annuale Societa' Italiana Patologia Aviare (SIPA) (47 : Forli' : 2 Ottobre) First author Cordioli, Paolo The common methods used in avian pathology for the diagnostic of viral infections are reviewed. ID nr. 4189 Tosi° G Group 1 adenovirus infections Atti della Societa' Italiana di Patologia Aviare 2008 : XLVII convegno annuale 2 Ottobre 2008, Forli / [s.l. : s.n., 2008]. - p 11-18 Convegno annuale Societa' Italiana Patologia Aviare (SIPA) (47 : Forli' : 2 Ottobre) First author Tosi, Giovanni In this review the most common diseases caused by group 1 fowl adenovirus are described: quail bronchitis, pancreatitis in guinea fowl, inclusion body hepatitis, hydropericardium syndrome and respiratory diseases caused by CELO virus. In addition, laboratory diagnosis and intervention strategies of these diseases are reported. Pag. 172 di 300 31/08/2011 ID nr. 4190 Sozzi° E, Luppi° A, Lelli° D, Moreno_Martin° A, Canelli° E, Brocchi° E, Lavazza° A, Cordioli° P Comparison of enzyme-linked immunosorbent assay and RT-PCR for the detection of porcine epidemic diarrhoea virus Res Vet Sci. - Vol. 88 no 1 ( 2010). - p166-168. - 17 bib ref Impact factor: 1,345 Project PRC2003024 - Set-up of reagents and diagnostic methods for the study of animal coronaviruses Cordioli Dr. Paolo - Capofila - MINSAN - 2003 - 76500,00 EUR - 26/04/2004 0.00.00 - 25/10/2006 0.00.00 - 1 - G1 - Reparto di Virologia e Sierologia Specializzata - Moreno Martin Dr.ssa Ana - I 2 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I 3 - IZSVE - Nardelli Dr. Stefano - E First author Sozzi, Enrica Porcine epidemic diarrhoea (PED) is a contagious enteric disease of pigs caused by a coronavirus. A double antibody sandwich enzyme-linked immunosorbent assay (DAS-ELISA) based on the use of monoclonal antibodies was developed for the detection of porcine epidemic diarrhoea virus (PEDV). The DAS-ELISA was compared with RT-PCR in the examination of 506 specimens collected during 2006–2007 from pigs originating from different farms located in the Po valley. Both faecal samples obtained directly from the rectum of live animals showing clinical signs and intestinal samples collected from the caecum of deceased pigs were included in the study. The correlation between the two methods was higher when testing faecal samples (K = 0.97, 95% CI: 0.94–1.00) than testing intestinal samples (K = 0.62, 95% CI: 0.35–0.89). The use of ELISA technology provided an efficient and effective mean of evaluating the presence of coronavirus PED antigen in field samples and indicates that this procedure is a very useful tool in epidemiological studies.. ID nr. 4191 Vitali A, Segnalini M, Bertocchi° L, Bernabucci U, Nardone A, Lacetera N Seasonal pattern of mortality and relationships between mortality and temperature-humidity index in dairy cows J Dairy Sci. - Vol. v 92 no 8 ( 2009). - p 3781-3790. - 24 bib ref Impact factor: 2,486 The 2 studies described investigated seasonal variations of mortality and temperature-humidity index (THI)– mortality relationships in dairy cows. Mortality data were extracted from the Italian Bovine Spongiform Encephalopathy databases, which contain records on cows older than 24 mo that died on a farm from all causes (98% of total records), were slaughtered in an emergency state, or were sent for normal slaughter but were sick in the preslaughter inspection (2% of total records). Both studies evaluated mortality data during a 6-yr period (2002 to 2007). The seasonal pattern study was conducted throughout Italy and was based on 320,120 deaths. An association between season and deaths was found for all 6 yr. Summer and spring were the seasons with the highest and lowest frequency of deaths (15,773.3 ± 2,861 and 11,619.3 ± 792.3), respectively, and within summer months, the number of deaths in July and August (5,435 ± 284 and 5,756 ± 676.2, respectively) was higher than in June (4,839 ± 344.8). The THI–mortality relationships study was carried out only for deaths (51,240) reported for the Lombardia and Emilia Romagna regions. For this study, the mortality databases were integrated with THI data, which were calculated by using data from 73 weather stations. Each farm where deaths were recorded was assigned the THI values (maximum and minimum) calculated at the closest weather station for each day the events (deaths) were reported. Analysis of data indicated that approximate THI values of 80 and 70 were the maximum and minimum THI, respectively, above which the number of deaths in dairy farms starts to increase. Maximum and minimum THI values of 87 and 77 were the upper critical THI above which the risk of death for dairy cows becomes maximum. This study defined quantitative relationships between mortality risk and THI in dairy cows and may help to provide emergency interventions and mitigation measures, which may ensure survival of dairy cows and reduce replacement costs associated with heat stress-related mortality. Pag. 173 di 300 31/08/2011 ID nr. 4193 Badan M, Dorigo M, Dalvit P, Zambon D, Biancotto G, Bertocchi° L, Varisco° G, Barberio A Factors affecting Aflatoxin M1 excretion into milk Buiatria. - Vol. 4 no 3 ( 2009). - p 39-44. - 5 bib ref Project PRC2003026 - Study and demonstration of feed-management techniques for the reduction of mycotoxins carry-over in milk and harmonisation of analytical methods through production of reference material - Varisco Dr. Giorgio - Capofila - MINSAN - 2003 - 60000,00 EUR - 26/04/2004 0.00.00 - 25/04/2006 0.00.00 - 1 - I4 - Reparto produzioni zootecniche e sorveglianza epidemiologica degli allevamenti - Bolzoni Dr. Giuseppe - I 2 - I4 - Reparto produzioni zootecniche e sorveglianza epidemiologica degli allevamenti Bertocchi Dr. Luigi - I 3 - IZSVE - Barberio Dr. Antonio - E 4 - IZSLT - Rosati Dr. Remo - E 5 - IZSUM - Valiani Dr. Andrea - E ID nr. 4194 Dorigo M, Badan M, Dalvit P, Zambon D, Biancotto G, Bertocchi° L, Varisco° G, Barberio A Carry-over in milk of low doses of aflatoxin B1 Buiatria. - Vol. 4 no 3 ( 2009). - p 33-38. - 5 bib ref Project PRC2003026 - Study and demonstration of feed-management techniques for the reduction of mycotoxins carry-over in milk and harmonisation of analytical methods through production of reference material - Varisco Dr. Giorgio - Capofila - MINSAN - 2003 - 60000,00 EUR - 26/04/2004 0.00.00 - 25/04/2006 0.00.00 - 1 - I4 - Reparto produzioni zootecniche e sorveglianza epidemiologica degli allevamenti - Bolzoni Dr. Giuseppe - I 2 - I4 - Reparto produzioni zootecniche e sorveglianza epidemiologica degli allevamenti Bertocchi Dr. Luigi - I 3 - IZSVE - Barberio Dr. Antonio - E 4 - IZSLT - Rosati Dr. Remo - E 5 - IZSUM - Valiani Dr. Andrea - E ID nr. 4195 Bertocchi° L, Cerioli° M Biosecurity in Veterinary : biosecurity in bovine breeding La biosicurezza in veterinaria / edito a cura della Fondazione Iniziative Zooprofilattiche e Zootecniche. Brescia : Fondazione Iniziative Zooprofilattiche e Zootecniche, 2009. - (Atti delle giornate di Studio Fondazione Iniziative Zooprofilattiche e Zootecniche ; 74) p 21-46. - 37 bib ref This work examines the means and management practice procedures to prevent and limit the introduction and spread of biological risks and then the development of diseases and pathological states in cow. This work is divided into two parts: the first one general that speaks about milk herd management and the second one special that treats about the most important farm pathologies. ID nr. 4196 Pignatelli J, Jimenez M, Luque MT, Rejas MT, Lavazza° A, Rodriguez D Molecular characterization of a new PToV strain : evolutionary implications Virus Res. - Vol. 143 ( 2009). - p 33-43. - 56 bib ref Pag. 174 di 300 31/08/2011 Impact factor: 2,429 Toroviruses are emergent viruses, belonging to the Nidovirales order, that remain mostly ignored, despite they are able to infect different species of domestic animals and humans, causing enteric diseases and diarrhea. Thus far, only five variants of porcine torovirus (PToV) have been identified. In this report we describe the identification and partial characterization of a new strain of porcine torovirus (PToV-BRES) that was detected by RT-PCR in a swine faecal specimen from a farm in Brescia (Italy). The complete genes coding for the nucleocapsid (N), hemagglutinin-esterase (HE) and membrane (M) proteins were amplified, and sequence analysis showed that PToV-BRES is a new PToV strain that, based on the HE gene sequence, is phylogenetically related to P4 strain, that was up to now the only member of a distinct PToV lineage. The nucleocapsid protein from PToV-BRES was expressed in insect cells as a his-tagged protein, purified by affinity chromatography and used to develop an ELISA method to detect antibodies against PToV. This assay was evaluated using a serum collection including 45 samples from three commercial farms from Spain. High antibody prevalence against PToV was observed in the three farms, both in adult animals and in piglets, which could suggest that PToV might be endemic in Spanish porcine population. The ELISA method developed in this work could be useful in future epidemiological surveys about toroviruses. ID nr. 4200 Lavazza° A, Cerioli° M, Grilli° G Biosecurity in veterinary medicine: biosecurity in bovine breeding La biosicurezza in veterinaria / edito a cura della Fondazione Iniziative Zooprofilattiche e Zootecniche. Brescia : Fondazione Iniziative Zooprofilattiche e Zootecniche, 2009. - (Atti delle giornate di Studio Fondazione Iniziative Zooprofilattiche e Zootecniche ; 74) p 91-120. - 30 bib ref This work examines the means and management practice procedures to prevent and limit the introduction and spread of biological risks and then the development of diseases and pathological states in cow. This work is divided into two parts: the first one general that speaks about milk herd management and the second one special that treats about the most important farm pathologies. ID nr. 4201 Martelli P, Lavazza° A, Nigrelli° AD, Merialdi° G, Alborali° G, Pensaert MB Epidemic of diarrhoea caused by porcine epidemic diarrhoea virus in Italy Vet Rec. - Vol. 162 ( 2008). - p 307-310. - 17 bib ref Impact factor: 1,087 There was an epidemic of diarrhoea affecting pigs of all ages in Italy between May 2005 and June 2006. In 63 herds the cause was confirmed as porcine epidemic diarrhoea virus by electron microscopy, immunoelectron microscopy, PCR and serology. Watery diarrhoea without mucus and blood was usually associated with a reduction of feed consumption. In farrowing-to-weaning herds, diarrhoea affected the sows and suckling piglets, and the mortality in newborn piglets was up to 34 per cent. In growers and fatteners the morbidity ranged from 20 to 80 per cent, but there was either no mortality or it was very low. Depending on the size of the herd and the type of operation, the clinical disease lasted for weeks or months. ID nr. 4202 De_Bernardinis° F, Finazzi° G, Daminelli° P, Bertolassi° R, Boni° P, Bonometti° E, Boni° P Dynamic of several pathogens in artificially contaminated Salame Piacentino DOP Ind Aliment (Pinerolo). - Vol. 48 n 497 ( 2009). - p 40-45. - 6 bib ref Pag. 175 di 300 31/08/2011 Project PRC2006001 - Development and implementation of epidemiological surveillance and risk analysis for primary production and processing of typical area food - Boni Dr. Paolo - Solo - MINSAN - 2006 - 1131023,00 EUR - 02/07/2007 0.00.00 - 01/07/2010 0.00.00 - 1 - M6 - Sezione diagnostica provinciale di Mantova - Nigrelli Dr. Arrigo - I 2 - N1 - Sezione diagnostica provinciale di Bologna - Belletti Dr. Gian Luca - I 3 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 4 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I 5 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I First author De_Bernardis, Federica ID nr. 4204 Renzi° M Rabbits : gastrointestinal bacterial diseases Obiet Docum Vet. - Vol. 30 no 1 ( 2009). - p 13-21. - 59 bib ref First author Renzi, Maria The aim of this work is to describe the gastrointestinal bacterial disease as a major cause of economic losses in intesive rabbit production. The aetiological agents ( Escherichia coli, Clostridium sp. Salmonella sp.and Klebsiella pneumoniae ) and the role of the gut barrier, caecotropy and caecal metabolism in digestive disorders are reviewed. ID nr. 4205 Laroucau K, Vorimore F, Bertin C, Mohamad KY, Thierry S, Hermann W, Maingourd C,Pourcel C, Longbottom D, Magnino° S, Sachse K, Vretou E, Rodolakis A Genotyping of Chlamydophila abortus strains by multilocus VNTR analysis Vet Microbiol. - Vol. 137 ( 2009). - p 335-344. - 22 bib ref Impact factor: 2,370 Chlamydophila (C.) abortus is the causative agent of ovine enzootic abortion with zoonotic potential whose epidemiology has been held back because of the obligate intracellular habitat of the bacterium. In the present study, we report on a molecular typing method termed multiple loci variable number of tandem repeats (VNTR) Analysis (MLVA) for exploring the diversity of C. abortus. An initial analysis performed with 34 selected genetic loci on 34 ruminant strains including the variant Greek strains LLG and POS resulted in the identification of five polymorphic loci, confirming the widely held notion that C. abortus is a very homogeneous species. Analysis of additional 111 samples with the selected five loci resulted in the classification of all strains into six genotypes with distinct molecular patterns termed genotypes [1] through [6]. Interestingly, the classification of the isolates in the six genotypes was partly related to their geographical origin. Direct examination of clinical samples proved the MLVA to be suitable for direct typing. Analysis of the genomic sequences in six C. abortus prototypes of amplicons generated with each of the five selected VNTR primers revealed that variation between genotypes was caused by the presence or absence of coding tandem repeats in three loci. Amplification of Chlamydophila psittaci reference strains with the five selected VNTR primers and of the six C. abortus prototype strains with the eight VNTR primers established for the typing of C. psittaci [Laroucau, K., Thierry, S., Vorimore, F., Blanco, K., Kaleta, E., Hoop, R., Magnino, S., Vanrompay, D., Sachse, K., Myers, G.S., Bavoil, P.M., Vergnaud, G., Pourcel, C., 2008. High resolution typing of Chlamydophila psittaci by multilocus VNTR analysis (MLVA). Infect. Genet. Evol. 8(2), 171–181] showed that both MLVA typing systems were species-specific when all respective VNTR primer sets were used. In conclusion, the newly developed MLVA system provides a highly sensitive, high-resolution and easy-toperform tool for the differentiation of C. abortus isolates of different origin, which is suitable for molecular epidemiological studies. Pag. 176 di 300 31/08/2011 ID nr. 4206 Sachse K, Laroucau K, Vorimore F, Magnino° S, Feige J, Müller W, Kube S, Hotzel H, Schubert E, Slickers P, Ehricht R DNA microarray-based genotyping of Chlamydophila psittaci strains from culture and clinical samples Vet Microbiol. - Vol. 135 ( 2009). - p 22-30. - 23 bib ref Impact factor: 2,370 The avian and human pathogen Chlamydophila (C.) psittaci represents a genetically heterogeneous species. To facilitate epidemiological surveys, more rapid yet highly specific molecular tests are needed. Currently used typing methods, i.e. serotyping and PCR-RFLP, have only limited sensitivity and are incapable of covering the wide spectrum of naturally occurring types of C. psittaci strains. In the present study, a new DNA microarray assay based on the ArrayTube® (AT) technology was used to genotype C. psittaci in 98 isolates and 23 clinical tissue samples. The present array carries 35 oligonucleotide probes derived from variable domains 2 and 4 of the ompA gene. The assay proved highly sensitive, allowing correct genotyping of DNA from 2 inclusion-forming units. The results of DNA microarray genotyping of cultured strains proved highly concordant with the data from PCR-RFLP typing and serotyping. Sequencing of the ompA gene served as the reference test to verify the accuracy of AT genotyping results. In 15 instances (15.3%), strains were successfully typed by the AT assay, while serotyping and/or PCR-RFLP genotyping failed to produce unambiguous results. Eleven of these samples were ompA sequenced to confirm the AT findings. In addition to the currently accepted nine ompA genotypes, the microarray test was shown to recognise new provisional genotypes, such as Mat116 and YP84. In conclusion, the new AT assay proved to be suitable for rapid, sensitive and reproducible genotyping of C. psittaci strains and can be recommended for routine diagnosis. ID nr. 4207 Donati M, Di_Francesco A, Baldelli R, Magnino° S, Pignanelli SI, Shurdhi A, Delucca F, Cevenini R In vitro detection of neutralizing antibodies to Chlamydia suis in pig sera Vet Rec. - Vol. 164 ( 2009). - p 173-174. - 13 bib ref Impact factor: 1,240 ID nr. 4208 Ferreri AJN, Dolcetti R, Magnino° S, Doglioni C, Ponzoni M Chlamydial infection : the link with ocular adnexal lymphomas Nat Rev Clin Oncol. - Vol. 6 ( 2009). - p 658-669. - 115 bib ref Impact factor: 9,113 Chlamydiae are obligate intracellular bacteria that grow in eukaryotic cells and cause a wide spectrum of diseases. They can establish persistent infections, are mitogenic in vitro, promote polyclonal cell proliferation in vivo and induce resistance to apoptosis in infected cells—properties that might contribute to tumorigenesis. In fact, Chlamydophila psittaci (Cp) has been linked to the development and maintenance of ocular adnexal marginal zone B-cell lymphoma (OAMZL). In this indolent malignancy, Cp is transported by monocytes and macrophages and causes both local and systemic infection. Cp elementary bodies are viable and infectious in the conjunctiva and peripheral blood of patients with OAMZL. Bacterial eradication with antibiotic therapy is often followed by lymphoma regression. Despite recent advances in the understanding of this bacterium– lymphoma association, several questions remain unanswered. For instance, prevalence variations among different geographical areas and related diagnostic and therapeutic implications remain a major investigational issue. We will focus on clinical and therapeutic implications of chlamydial infections in patients with lymphomas and summarize the current knowledge on the association between Cp infection and OAMZL. Available data on the epidemiology, biology and pathogenesis of this association are analyzed and new investigative and clinical approaches are discussed. Pag. 177 di 300 31/08/2011 ID nr. 4209 Luppi° A, Bonilauri° P, Mazzoni C, Spaggiari° B, Leonelli° R, Di_Lecce R, Dottori° M Diagnostic approach about PMWS/PCVD and PCV2 infection evaluation in pig Large Anim Rev. - Vol. 15 no 2 ( 2009). - p 55-60. - 13 bib ref First author Luppi, Andrea ID nr. 4211 Candotti° P, Rota_Nodari° S, Amadei A The legislative decree 146/2001. Suinicoltore. - Vol. 16 suppl 1 ( 2009). - p 21-28 First author Candotti, Paolo The author illustrate the content of the legislative decree 146/2001 on the welfare of the animals kept for farming purposes. ID nr. 4212 Ducatez MF, Moreno_Martin° A, Ademola A. Owoade AA, Olatoye IO, Alkali BR, Maikano I, Chantal J, Snoeck JS, Sausy A, Cordioli° P, Muller CP Characterization of a new genotype and serotype of infectious bronchitis virus in Western Africa J Gen Virol. - Vol. 90 ( 2009). - p 2679-2685. - 42 bib ref Impact factor: 3,092 Between 2002 and 2007, more than 1000 chickens from commercial farms, live bird markets and backyard farms in Nigeria and Niger were tested for the presence of the infectious bronchitis virus (IBV) genome. Phylogenetic analysis of full-length sequences of the spike 1 (S1) gene revealed a new genotype of IBV that we refer to as ‘IBADAN’. The minimum genetic distance to the closest ‘non-IBADAN’ strains (UK/7/93 at the nucleotide level; H120 and M41 at the amino acid level) reached 24 and 32 % at the nucleotide and amino acid levels, respectively. The full genome of the IBADAN reference strain (NGA/A116E7/2006) had a genetic distance of 9.7–16.4 % at the nucleotide level with all available fully sequenced strains. As IBV S1 plays a major role in antigenicity, the antigenic relatedness of NGA/A116E7/2006 was compared with strains of other serotypes. NGA/A116E7/2006 did not cross-react with antisera against IT02, M41, D274, Connecticut or 793/B strains in virus neutralization assays. NGA/A116E7/2006 cross-reacted with the QX-like strain ITA/90254/2005 but only to a low level (antigenic relatedness of 33 %), suggesting that IBADAN also represents a new serotype. A comparison of S1 sequences identified several amino acids that may play a role in IBV antigenicity. Despite the absence of obvious clinical signs in poultry infected by IBADAN strains, it is important to test the cross-protection of current vaccine strains. ID nr. 4213 Piccirillo A, Pasotto D, Moreno_Martin° A, Cordioli° P Serological survey for influenza type A viruses in domestic dogs (Canis lupus familiaris) and cats (Felis catus) in North-Eastern Italy Zoonoses Public Health. - Vol. 2009). - p 1-5. - 31 bib ref Impact factor: 1,333 To ascertain the potential transmission of influenza A viruses to dogs and cats, a serological survey was carried out in North-eastern Italy. In a 4-year period, 637 serum samples were screened using a Mab-based Pag. 178 di 300 31/08/2011 competitive ELISA for anti-nucleoprotein A (NPA) antibody detection of influenza viruses. No evidence of antiNPA antibodies was observed. ID nr. 4214 Moreno_Martin° A, Barbieri° I, Sozzi° E, Luppi° A, Lelli° D, Lombardi° G, Zanoni° MG, Cordioli° P Novel swine influenza virus subtype H3N1 in Italy Vet Microbiol. - Vol. 138 ( 2009). - p 361-367. - 34 bib ref Impact factor: 2,370 First author Moreno_Martin, Ana To date, three subtypes of swine influenza viruses, H1N1, H1N2, and H3N2 have been isolated in Italy. In 2006, a novel swine influenza virus subtype (H3N1) was isolated from coughing pigs. RT-PCR performed on lung tissues, experimental infection in pigs with the novel isolate, and cloning the virus by plaque assay confirmed this unique H and N combination. The novel isolate was also antigenically and genetically characterized. Genetic and phylogenetic analysis showed that the complete HA gene of the H3N1 strain has the highest nucleotide identity to three Italian H3N2 strains, one isolated in 2001 and two in 2004, whereas the full length NA sequence is closely related to three H1N1 subtype viruses isolated in Italy in 2004. The remaining genes are also closely related to respective genes found in H1N1 and H3N2 SIVs currently circulating in Italy. This suggests that the novel SIV could be a reassortant between the H3N2 and H1N1 SIVs circulating in Italy. ID nr. 4215 Frasnelli° M, Raffini° E, Pongolini S, Zanotti S, Gallegati P, Savorellli P E. coli O157 and thermotolerant campylobacter spp, detection in dairy cattle farms producing raw milk in Ravenna province (italy) Large Anim Rev. - Vol. 15 no 5 ( 2009). - p 199-203. - 28 bib ref First author Frasnelli, Matteo We carried out a study in order to find Escherichia coli 0157 and thermotolerant Campylobacter spp, and to determine their prevalence in dairy cattle farms producing raw milk in Ravenna province (Italy). During 2008 summer months we collected and examined pooled recto-anal swabs, bulk milk samples and milking machine filters using immunomagnetic separation for E. coli 0157 detection and microbiological standard methods for thermotolerant Campylobacter spp, detection. A genetic characterization of all the E. coli 0157 strains we isolated was made. E. coli 0157 prevalence was 33% in farms and 4.9% in pooled swabs. Thermotolerant Campylobacter spp. prevalence was 83% in farms and 42% in pooled swabs. All E. coli 0157 strains we isolated were positive for ease gene and for vero cytotoxins-coding genes. All bulk milk and milking machine filters samples were negative for 'both pathogens. We think that the lack of E. coli 0157 and thermotolerant Campylobacter spp, detection in bulk milk may be an index of good hygiene practice during milking procedures, milk collection and storage. We observe that the farms found positive for E. coli 0157 in our study were those located on the hills and where heifers used to graze during spring and summer months. We confirm rectoanal swabbing as a valid sampling method for E. coli 0157 detection. ID nr. 4216 Nigrelli° AD, Bertoletti° I, Boldini° M, Fabbi° M, Luini° M, Paterlini° F, Faccini° S Prevalence of BVDV infection in dairy cattle in Lombardy and proposal of a farm eradication program Large Anim Rev. - Vol. 15 ( 2009). - p 195-198. - 27 bib ref Pag. 179 di 300 31/08/2011 Project PRC2004015 - Evaluation of BVD virus infection in dairy farms of Lombardy Region and definition of a herd eradication programme. - Nigrelli Dr. Arrigo - Solo - MINSAN - 2004 - 155000,00 EUR 01/07/2005 0.00.00 - 31/12/2007 0.00.00 - 1 - M6 - Mantova - Nigrelli Dr. Arrigo - I 2 - M1 - Brescia - Alborali Dr. Loris - I 3 - M4 - Cremona - Boldini Dr. Massimo - I 4 - M8 - Pavia - Fabbi Dr. Massimo - I 5 - M5 - Lodi - Luini Dr. Mario - I 6 - M7 - Milano - Colmegna Dr.ssa Silvia - I 7 - M2 - Bergamo - Paterlini Dr. Franco - I 8 - M3 - Como-Varese-Lecco (Binago) - Sacchi Dr.ssa Cristina - I First author Nigrelli, Arrigo Daniele The authors have verified the seroprevalence of BVDV in a. stratified random sample of 240 cattle farms in some provinces of Lombardy. In each herd, young (heifers) and adult (cows) animals were sampled and tested for antibodies to BVDV NS 2-3 by ELISA. The prevalence of positivity in groups and the observed ODS allowed to assess: (i) the presence of active circulation of BVDV in 89 herds (37.1%), (ii) responses related to prior infection in 108 herds (45.0%) and (iii) responses probably related to the use of vaccine in 7 herds (2.9%). Another sampling involved 194 farms located in two provinces of Lombardy in the course of 24 months, with quarterly examinations of the tank bulk milk antibodies by ELISA. The high percentage of "seroconversion" (63 of 194 corresponding to 32.5%) strongly suggests the evidence for a high circulation of BVDV among herds in Lombardy. The eradication protocol applied in 14 farms was based on the research of BVDV by PCR of pools of 20 sera to cover the whole herd from one day old calves. Moreover all new-born calves averse tested by PCR during the 9 following months. A minimum of 1 to a maximum of 14 (0.1% to 5.8%) persistently infected (PI) animals were identified in the controlled farms. The elimination of PI subjects identified in all herds led to eradication of infection. This was documented by repeated negative antibody response in 6/8 months old subjects and by PCR on the bulk milk samples. ID nr. 4217 Fusaro A, Monne I, Cattoli G, De_Nardi R, Salviato A, Moreno_Martin° A, Capua I, Terregino C Gene segment reassortment between Eurasian and American clades of avian influenza virus in Italy Arch Virol. - Vol. 155 ( 2010). - p 77-81. - 25 bib ref Impact factor: 1,909 All genes of avian influenza A viruses are phylogenetically distinguished into two large clades, namely the American and Eurasian clade. Reassortments among the gene segments of influenza viruses belonging to the two distinct clades are rare events and have never been described in poultry in Europe and Asia before. This study presents the genetic characterization of two influenza viruses isolated from domestic mallards in Italy in 2004 and 2005. Phylogenetic analysis of the entire genome showed that these viruses contain mixed gene segments belonging to the American and Eurasian clades. ID nr. 4218 Mattiello S, Andreoli E, Stefanelli A, Cantafora A, Bianchi° A How to evaluate body conditions of red deer (Cervus elaphus) in an alpine environment Ital J Anim Sci. - Vol. 8 no 4 ( 2009). - p 555-565. - 28 bib ref Impact factor: 0,132 The aim of this investigation was to compare different indices for evaluating nutritional conditions of red deer (Cervus elaphus) in an alpine environment during the autumn in order to detect the most convenient ones for management purposes in our specific situation. Body conditions of 274 red deer were evaluated using kidney fat index, back fat index and body condition scores. Body Condition Scores was the easiest but the least Pag. 180 di 300 31/08/2011 reliable method. Both kidney fat index and back fat index were significantly affected by age and sex class (always lower in younger animals) and, in females, also by lactation status. In stags, a negative regression effect of culling date on both kidney fat index and back fat index was observed. A significant positive correlation between kidney fat index and back fat index was recorded. Both kidney fat index and back fat index were objective indicators of nutritional status and sensitive to changes in physical conditions, but back fat index was both quicker and easier to be measured. As a direct implication, we suggest that back fat index can be a practical and reliable indicator for monitoring red deer conditions in alpine areas during the autumn, provided that the effects of sex, age and date of culling are taken into account. ID nr. 4219 Battisti A, Franco A, Merialdi° G, Hasman H, Iurescia M, Lorenzetti R, Feltrin F, Zini M, Aarestrup FM Heterogeneity among methicillin-resistant Staphylococcus aureus from Italian pig finishing holdings Vet Microbiol. - Vol. 142 ( 2010). - p 361-366. - 33 bib ref Impact factor: 2,874 Project PRC2007106 - Prevalence study of methicillin-resistant S. aureus (MRSA) in fattening pigs - Battisti dr. Antonio - UO - MINSAN - 2007 - 0,00 EUR - 29/09/2008 0.00.00 - 28/09/2010 0.00.00 - 2 N1 - Sezione diagnostica provinciale di Bologna - Merialdi Dr. Giuseppe - I A survey for methicillin-resistant Staphylococcus aureus (MRSA) in finishing pig holdings was carried out in Italy in 2008. MRSA isolates were characterised by spa-, MLST-, SCCmec- and antimicrobial susceptibility typing. A prevalence of 38% (45/118, 95% CI 29.4–46.9%) positive holdings was observed. Eleven different spa-types were found among 102 MRSA isolates, clustering in lineages associated with farm animals (ST398, ST9, ST(CC)97 in 36 holdings) and humans (ST1, 7 holdings). Nine (7.6%) holdings were positive for two, three or four different and unrelated spa-types in various combinations. ST398 was the most prevalent lineage (33 positive holdings). The most prevalent spa-type was t899 (ST398), detected in 22 positive holdings. Three novel spa-types (t4794 of ST9; t4795 of ST97; t4838 of ST398) were detected. Ten holdings were positive for spa-type t1730, that proved to be a new single-locus variant of ST97, within the CC97 (ST1476). The most prevalent SCCmec was Type V (79 isolates), while Type IVb was found in 10 isolates. None of the isolates was positive for Panton-Valentine Leukocidin, while most of the t127 and t1730 isolates, one t4794, one t4795, and one t2922 were positive for LukE-LukD genes. All 64 antimicrobial susceptibility tested isolates were resistant to tetracyclines, with high resistance rates to trimethoprim (68.8%), erythromycin (60.9%), and ciprofloxacin (35.4%). All t127, ST1 isolates were resistant to tetracycline–ciprofloxacin–erythromycin. This survey provides the first report of MRSA ST1 and ST(CC)97 among pigs and the first report of MRSA ST9 from pigs in Europe. The presence of human-associated CA-MRSA (t127, ST1, SCCmec type V) in 6% holdings surveyed can represent an additional MRSA reservoir for infections in humans.. ID nr. 4220 Finazzi° G, Miraglia° V, Daminelli° P, Monastero P, Bonometti° E, Gregorelli M, Boni° P Listeria monocytogenes behaviour in gastronomy food: octopus and potato salad Ind Aliment (Pinerolo). - Vol. 49 n 498 ( 2010). - p 28-34. - 5 bib ref Project PRC2006001 - Development and implementation of epidemiological surveillance and risk analysis for primary production and processing of typical area food - Boni Dr. Paolo - Solo - MINSAN - 2006 - 1131023,00 EUR - 02/07/2007 0.00.00 - 01/07/2010 0.00.00 - 1 - M6 - Sezione diagnostica provinciale di Mantova - Nigrelli Dr. Arrigo - I 2 - N1 - Sezione diagnostica provinciale di Bologna - Belletti Dr. Gian Luca - I 3 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 4 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I 5 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I First author Finazzi, Guido Pag. 181 di 300 31/08/2011 Octopus and potato salad was artificially contaminated with a L. monocytogenes suspension (mix of three different strains), packaged and stored at different temperatures 5°, 10°, 15° and 20°C for several days. This food didn’t support the grow of Listeria: in fact during the shelf-life period we observed microorganism decreasing with a speed directly correlated to storage temperature increasing. As a consequence, a batch of octopus and potato salad respecting the critical limit for L. monocytogenes established by European regulation for ready-to-eat foods (< 100 cfu/g) can be considered safe beyond the end of shelf-life period fixed by the producer (9 days) not only at optimal storage conditions but also at domestic storage conditions or even in situation of thermal abuse. ID nr. 4223 Chiapponi° C, Zanni° I, Garbarino° C, Barigazzi° G, Foni° E Comparison of the usefulness of the CACO-2 cell line with standard substrates for isolation of swine influenza A viruses J Virol Methods. - Vol. 163 ( 2010). - p 162-165. - 26 bib ref Impact factor: 2,133 Project ESNIP2 - "European surveillance network for influenza in pigs 2 (ESNIP 2). - Van Reet dr.ssa Kristien - UO - CE - 2005 - 300000,00 EUR - 01/01/2006 0.00.00 - 31/03/2009 0.00.00 - 4 - N5 - Parma - Foni Dr.ssa Emanuela - I PRC2005016 - Epidemiologic surveillance of influenza virus circulation in domestic and wild animals: detection, antigenic and genomic characterisation of viruses circulating in susceptible species of domestic animals - Barigazzi Dr. Giuseppe - Solo - MINSAN - 2005 - 05/06/2006 0.00.00 04/06/2008 0.00.00 - 77500,00 EUR 1 - N5 - Parma - Foni Dr.ssa Emanuela - I 2 - N8 - Reggio Emilia - Dottori Dr. Michele - I 3 - N3 - Forlì - Massi Dr.ssa Paola - I 4 - G1 - Reparto di Virologia e Sierologia Specializzata - Moreno Martin Dr.ssa Ana - I 5 - M6 - Mantova - Nigrelli Dr. Arrigo - I First author Chiapponi, Chiara Influenza A virus isolation is undertaken routinely in embryonated chicken eggs, but to improve virus detection various cell lines can be used. The CACO-2 cell line was compared to the MDCK cell line and embryonated chicken eggs for the isolation of H1N1, H1N2, H3N2 swine influenza A virus subtypes from clinical specimens. From 2006 to 2008, 104 influenza A samples found positive by PCR from 42 respiratory outbreaks in Italian swine farms were examined by virus isolation. Sixty swine influenza A viruses were isolated (16 H1N1, 28 H1N2 and 16 H3N2) and their growth behaviour on the different substrates was examined. 16/16 H1N1, 28/28 H1N2 and 8/16 of H3N2 viruses were isolated from the CACO-2 cell line, while 7/16 H1N1, 3/28 H1N2 and 16/16 H3N2 viruses were isolated using embryonated chicken eggs. Only 9/16 H1N1, 1/28 H1N2 and 6/16 H3N2 viruses replicated in MDCK cells. A link was found between viral hemagglutinin and the isolation rate on the various substrates. The CACO-2 line was statistically more sensitive (Fisher’s exact test, p < 0.01) compared to the MDCK cells and embryonated chicken eggs for the isolation of H1N1 and H1N2 subtypes. In contrast influenza A H3N2 virus was isolated more readily in embryonated chicken eggs than in cultured cells (Fisher’s exact test, p < 0.01). ID nr. 4226 Martinelli° N, Luppi° A, Lelli° D, Sozzi° E, Canelli° E, Moreno_Martin° A, Fontana° R, Lavazza° A, Lombardi° G. Prevalence of hepatitis e virus antibodies among pigs in Northern Italy Atti Convegno SIPAS. - Vol. 35 ( 2009). - p 431-436. - 12 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (35 : Modena : 12-13 Marzo 2009) Pag. 182 di 300 31/08/2011 First author Martinelli, Nicola The Hepatitis E virus (HEV), the causative agent of hepatitis E, is a non enveloped RNA virus, belonging to genus Hepevirus, the only member of the Hepeviridae family. HEV is classified into four major genotype but only one serotype is identifi ed. A survey to detect antibodies against hepatitis E virus was undertaken on 39 Italian pig farms (17 farrow to feeder, 10 farrow to fi nish and 12 fattening enterprises). For the study 1422 pig sera samples were tested using a commercial indirect ELISA, originally developed for testing human sera and properly adapted for the analysis of pig sera. 38 of the farms (97,43%) were positive for anti-HEV IgG antibodies and 714 of 1422 sera samples resulted positive (50,21%). Th e study confi rm that HEV is spread in pigs in Italy and is probably endemic in many farms. ID nr. 4227 Tittarelli° C, Sozzi° E, Spaggiari° B, Alborali° GL, Cordioli° P, Lavazza° A Electronmicroscopic diagnosis of swinepoxvirus, aetiological agent of sporadic skin disease during the period 2002-2008 in Northern Italy Atti Convegno SIPAS. - Vol. 35 ( 2009). - p 507-512. - 9 bib ref Meeting Annuale della Societa Italiana di Patologia ed Allevamento dei Suini (SIPAS) (35 : Modena : 12-13 Marzo 2009) First author Tittarelli, Cristiana During the period 2002-2008, 44 skin samples were performed in northern Italy by electron microscopy (EM). In 5 (11.3%) cases a diagnosis of suipoxvirus was ascertained, corfirming that the disease is sporadic. Of these, 3 cases were piglets or weaning pigs, 2 were foetuses. Negative staining EM is a useful tool for diagnosis of poxvirus infection in pigs. ID nr. 4235 Bellini° S General principles of biosecurity in farm and risk factors La biosicurezza in veterinaria / edito a cura della Fondazione Iniziative Zooprofilattiche e Zootecniche. Brescia : Fondazione Iniziative Zooprofilattiche e Zootecniche, 2009. - (Atti delle giornate di Studio Fondazione Iniziative Zooprofilattiche e Zootecniche ; 74) p 1-8. - 4 bib ref First author Bellini, Silvia Biosecurity is a set of preventive measures designed to reduce the risk of transmission of infectious diseases in livestock. It assumes a transversal value and the implementation of a valid bio-security system represents the key point in the management of the risk factors at fann leve]. Bio-security within a farming system should be viewed as a whole as each part of the system is closely linked to the next. The knowledge of the transmission pathway of an infectious agent is essential when selecting the most applicable control technique. The paper reviews the main factors associated with the spread of infections, characteristics of pathogens, hosts, environment and main pathways of infection. ID nr. 4236 Miraglia° V, Finazzi° G, Daminelli° P, Bonometti° E, Gregorelli° M, Boni° P Behaviour of Listeria monocytogenes in chunked or sliced seasoned Bresaola della Valtellina IGP Ind Aliment (Pinerolo). - Vol. 48 n 496 ( 2009). - p 58-64. - 10 bib ref First author Miraglia, Viviana Pag. 183 di 300 31/08/2011 The purpose of this work was to get data of Listerio monocytogenes behaviour during the shelf-life of portioned Tresco a della Valtellina IGP".At the end of the seasoning process, Bresaola has been contominated with a m ixture of different L. monocytogenes stra i ns allowing to obtoin a surfoce concentrotion of 10 03 ufc/cm2. Afterwords, different Bresaola were cut in pieces and vocuumpacked or sliced and pocked in a mod ified otmosphere. Both products hove been preserved ot different temperatures in occordonce to the shelf-life period estoblished by the producer. In this trial shelf-life was conducted ot 5°C, temperature shown on the lobel of the product; ot 10°C, moderate heat abuse which corresponds to the temperature overoge of the household preservotion; ot 15° and 20°C, heat abuse useful to define the product and/ or the pathogens behaviour following the interruption of the cold choin. The experiment lasted 127 days for the chunked product and 120 for the sliced one. It hos been verified and concluded that: with the bio-competition of the high lactic flora percentage belonging to both products L. monocytogenes does not take roots in the product, but it decreases during the shelf-life. ID nr. 4237 Morandi F, Ostanello F, Fusaro L, Bacci B, Nigrelli° A, Alborali° L, Dottori° M, Vezzoli° F, Barigazzi° G, Fiorentini° L, Sala V, Leotti G, Joisel F, Sarli G Immunohistochemical detection of aetiological agents of proliferative and necrotizing pneumonia in italian pigs J Comp Pathol. - Vol. 142 ( 2010). - p 74-78. - 16 bib ref Impact factor: 1,725 Proliferative and necrotizing pneumonia (PNP) is a form of interstitial pneumonia that occurs in weaning and post-weaning pigs. PNP is characterized by hypertrophy and hyperplasia of type II pneumocytes and coagulative necrosis and granular debris within alveolar spaces. Canadian and European studies suggest that the porcine reproductive and respiratory syndrome virus (PRRSV) and porcine circovirus type 2 (PCV2) are the main causes of the disease, but Aujezsky's disease virus (ADV) and swine influenza virus (SIV) have also been considered as potential aetiological agents. An immunohistochemical study was carried out on the lungs of 28 Italian pigs with PNP in order to evaluate the role of PRRSV, PCV2 and ADV in PNP lesions. PRRSV infection was identified in the lungs of 11 pigs, PCV2 in the lungs of four pigs and coinfection with both viruses in the lungs of eight pigs. Neither virus was detected in the lungs of the remaining five pigs. ADV antigen was not detected in any sample. The principle aetiological agent of PNP in Italy therefore appears to be PRRSV. Coinfection with PRRSV and PCV2 is characterized by more severe microscopical changes in affected lungs. ID nr. 4238 Strive T, Wright J, Kovaliski J, Botti° G, Capucci° L The non-pathogenic Australian lagovirus RCV-A1 causes a prolonged infection and elicits partial cross-protection to rabbit haemorrhagic disease virus Virology. - Vol. 398 n 1 ( 2010). - p 125-134. - 42 bib ref Impact factor: 3,042 Two caliciviruses occur in Australian wild rabbits: rabbit calicivirus Australia 1 (RCV-A1) and rabbit haemorrhagic disease virus (RHDV), which is used in Australia as a biocontrol agent to reduce feral rabbit populations. There is concern that RCV-A1 acts as a natural vaccine and protects from lethal RHDV infection. To investigate this hypothesis, domestic rabbits were perorally infected with RCV-A1, monitored for 28 days and subsequently challenged with RHDV. We show that RCV-A1 causes a non-pathogenic infection and is shed in faeces for up to 7 days post-infection. RCV-A1 was detected in the bile 2 months post-inoculation, indicating a prolonged or possible persistent infection. All animals infected with RCV-A1 developed antibodies cross-reacting to RHDV. When challenged with RDHV, half of the rabbits (n = 4) survived the infection. The results indicate that RCV-A1 is likely to persist in rabbit populations and can elicit partial cross-protection to lethal RHDV infection. Pag. 184 di 300 31/08/2011 ID nr. 4239 De_Nadai V, Finazzi° G, Daminelli° P, Bonometti° E, Bertolassi° R, Boni° P Behavioural dynamics of several pathogen microorganisms during processing and ripening of Bagòss cheese Ind Aliment (Pinerolo). - Vol. 48 no 495 ( 2009). - p 58-63. - 13 bib ref Project PRC2007001 - Determination of quality and safety features based on predictive microbiology and risk assessment of traditional regional food products - Finazzi Dr. Guido CON DELIBERA DG N. 461 DEL 17/09/2010 SOSTITUITO DR. BONI CON DR. FINAZZI - Solo - MINSAN - 2007 - 615000,00 EUR - 01/09/2008 0.00.00 - 31/08/2010 0.00.00 - 1 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 2 - M6 - Sezione diagnostica provinciale di Mantova - Franzini Giuliana - I 3 - M9 - Sezione diagnostica provinciale di Sondrio - Bertoletti Dr.ssa Irene - I 4 - N1 - Sezione diagnostica provinciale di Bologna - Bardasi Dr.ssa Lia - I 5 - N6 - Sezione diagnostica provinciale di Piacenza - Cammi Dr.ssa Giuliana - I 6 - N7 - Sezione diagnostica provinciale di Ravenna (Lugo di Romagna) - Raffini Dr. ssa Elisabetta - I First author De_Nadai, Valentina The aim of the survey was to value the behaviour of the most common dairy pathogens in the Bagòss, a peculiar ripe cheese of the Bagolino area (Brescia). Milk wasn contaminated with a three strains suspension of each of the investigated microorganism (L. monocytogenes, Salmonella typhimurium, E. coli O157:H7 e Staph. aureus), then processed and ripened in collaboration with the dairy. Cooking and next rest under whey of curd were not able to determine any effect on pathogens concentration. But rather the ripening ensured the abatement of Salmonella, E. coli and Staph. aureus and the decrease of 4-5 log of Listeria concentration. ID nr. 4241 Gasparini° M, Curatolo° M, Assini° W, Bozzoni° E, Tognoli° N, Dusi° G Confirmatory method for the determination of nandrolone and trenbolone in urine samples using immunoaffinity cleanup and liquid chromatography–tandem mass spectrometry J Chromatogr A. - Vol. 1216 ( 2009). - p 8059-8066. - 30 bib ref Impact factor: 3,756 First author Gasparini, Mara A confirmatory method for the simultaneous determination of nandrolone (a and ß) and trenbolone (a and ß) in urine samples by liquid chromatography electrospray mass spectrometry (LC–MS-MS) was developed. After an enzymatic deconjugation, the urine was subjected to a one-step cleanup on a commercially available immunoaffinity chromatography cartridge. The analytes were detected by liquid chromatography–positive ion electrospray tandem mass spectrometry using deuterium labelled internal standards. The analytical procedure was applicable to bovine and swine urine samples. The procedure was validated as a quantitative confirmatory method according to the Commission Decision 2002/657/EC criteria. The results obtained showed that the method was suitable for statutory residues testing regarding the following performance characteristics: instrumental linearity, specificity, precision (repeatability and intra-laboratory reproducibility), recovery, decision limit (CCa), detection capability (CCß) and ruggedness. The decision limits (CCa) obtained, were between 0.54 and 0.60 µg L-1; the recovery was above 64% for all the analytes. Repeatability was between 1.6% and 5.7% and within-laboratory reproducibility between 1.6% and 6.0% for all the steroids. ID nr. 4242 Bassi° S, Carra° E , Carpana E, Paganelli° GL, Pongolini° S A scientific note on the detection of spores of Paenibacillus larvae in naturally and artificially Pag. 185 di 300 31/08/2011 contaminated honey: comparison of cultural and molecular methods Apidologie. - Vol. 41 no 4 ( 2010). - p 425-427 - 11 bib ref Impact factor: 1,493 Project PESTE AMERICANA - Development of diagnostic techniques and control systems for American foulbrood of bees. - Carpana Dr. Emanuele - UO - ALTRI - 2009 - 14000,00 EUR - 01/01/2008 0.00.00 - 31/12/2010 0.00.00 - 1 - N4 - Sezione diagnostica provinciale di Modena - Bassi Dr. Stefano - I First author Bassi, Stefano The detection of Paenibacillus larvae spores in honey produced by infected colonies enables an early identification of American foulbrood (Ritter, 2003). Bacterial culture with colony counting is the reference method for P. larvae spores assessment in honey (OIE, 2008), but it is time consuming and the overgrowth of other Bacilli can confuse the results. The aim of our study was the evaluation of a PCR method targeting 16S rDNA as a faster alternative to culture in the screening of honey samples for the presence of P. larvae spores. The analytical sensitivity of both PCR and bacterial culture was determined. Then, PCR was compared to culture to determine its ability to discriminate non-contaminated from contaminated samples with different loads of spores One hundred and two samples were tested. They included 91 honeys from apicultural production, 4 artificially-contaminated honey samples containing approximately 10,000 - 1,000 - 100 and 10 spores of P. larvae per gram, 1 spore-free honey , 6 water suspensions of P. larvae spores ranging from 104 to 10-1 spores/ml. The results indicate that the PCR protocol employed is as sensitive as culture with MYPGP for P. larvae spores detection in hone. but it gives results in 24 hours instead of 8 days needed for bacterial culture. The superior sensitivity of PCR for water suspensions compared to honeys could be due to PCR inhibitors or less effective DNA extraction from honey. ID nr. 4245 Amadori° M, Cristiano° A, Ferrari° M Constitutive expression of interferons in swine leukocytes Res Vet Sci. - Vol. 88 ( 2010). - p 64-71. - 50 bib ref Impact factor: 1,345 First author Amadori, Massimo Interferon (IFN)-a and IFN- positive cells were revealed by flow cytometry in peripheral blood mononuclear cells (PBMC) of Specific Pathogen Free (SPF) pigs. A low prevalence of IFN- positive cells was also detected in PBMC of some Porcine Reproductive and Respiratory Syndrome virus-infected pigs and uninfected, control pigs. IFN-a positive cells showed phenotypes of both monocytes and plasmacytoid dendritic cells. The presence of IFN-a in PBMC was also confirmed by Western blotting. By immunoprecipitation, IFN-a was detected as 32 and 55–57 kDa bands in PBMC of healthy SPF piglets. These samples were also IFNpositive; the cytokine was revealed as 24, 37 and 54 kDa bands. The unusual molecular mass values of intracellular interferons were probably due to oligomerization, as previously described for human IFN-a. Swine intracellular IFN-a displayed the expected antiviral activity on bovine MDBK cells. The results indicate that interferons are constitutively expressed in swine leukocytes with peculiar molecular features. ID nr. 4246 Galarini R, Fioroni L, Moretti S, Gasparini° M, Dusi° G Determination of nine corticosteroids in bovine urine using liquid chromatography tandem mass spectrometry 1st Mass Spectometry Food Day : 2-3 December 2009 Parma / [Parma : s.n., 2009]. - p - 3 bib ref Mass Spectometry Food Day (1 : Parma : 2-3 December 2009) A liquid chromatography tandem mass spectrometry (LC-MS/MS) confirmatory method was developed for the Pag. 186 di 300 31/08/2011 simultaneous determination of nine synthetic corticosteroids in bovine urines. After enzymatic hydrolysis, the urine clean up was accomplished using a SPE column. The procedure was validated in accordance with the criteria defined in Commission Decision 2002/657/EC. ID nr. 4248 Olivo F, Gili M , Stella P, Dusi° G Multi-residue method for detection of anticoccidial drugs in egg and muscle by liquid chromatography - tandem mass spectrometry: validation according to Commission Decision 2002/657/EC 1st Mass Spectometry Food Day : 2-3 December 2009 Parma / [Parma : s.n., 2009]. - p - 2 bib ref Mass Spectometry Food Day (1 : Parma : 2-3 December 2009) A rapid and very effective analytical procedure for the liquid chromatographic detection of 8 coccidiostats in muscle and eggs was developed and tested. The method validation study was performed according to criteria defined by Decision 2002/657/EC for qualitative screening methods, and the following parameters were determined: response linearity, specificity, CCß, ruggedness and stability. The proposed method is suitable for screening analysis. ID nr. 4249 Assini° W, Tognoli° N, Bozzoni° E, Gasparini° M, Dusi° G Development and validation of a confirmatory method for the determination of gestagens in animal fat sample by liquid chromatography-tandem mass spectrometry 1st Mass Spectometry Food Day : 2-3 December 2009 Parma / [Parma : s.n., 2009]. - p - 2 bib ref Mass Spectometry Food Day (1 : Parma : 2-3 December 2009) First author Assini, Walter A confirmatory method for the determination of eight gestagens in animal fat was developed and validated. After acetonitrile extraction and SPE clean up the analytes were detected by positive ion electrospray LCMS/MS using deuterium-labelled internal standards. The parameters taken into account during the validation, carried out according to the Decision 2002/657/EC criteria, were: decision limit (CCa), detection capability (CCb), precision, recovery, calibration curves, specificity and ruggedness. ID nr. 4250 Massi° P, Tosi° G; Fiorentini° L Experimental infection with the “IT-02” strain of avian Infectious Bronchitis virus in commercial broilers vaccinated with different vaccination programmes using live attenuated vaccines XVIth World Veterinary Poultry Association Congress : November 8-12, 2009 Marrakesh : book of abstracts / [Marrakesh : s.n., 2009]. - p - 3 bib ref World Veterinary Poultry Association Congress (16 : Marrakesh : November 8-12, 2009) First author Massi, Paola The trial was performed utilizing four groups (group 1 to group 4) of commercial broilers, reared in isolation units in Italy at the IZSLER laboratory , Forlì. The aim was to evaluate the cross-protection induced by different types of commercial Infectious Bronchitis (IB) live attenuated vaccines, heterologous with respect to the challenge strain, and of vaccination programmes, against an experimental challenge with the “IT-02” strain of avian Infectious Bronchitis virus (IBV IT-02). This strain was first isolated in Italy and then sequenced by Bochkov, Y.A. and Drygin, V.V in 2002; it has been subsequently detected in several European countries. Pag. 187 di 300 31/08/2011 Comparing a sequence of 343 basis pairs of the S1 gene, IT-02 virus showed 88.3% homology with the 793/B variant and 77.4% with the Massachussets serotype. Group 1 was vaccinated at 1 and 14 days of age with a live vaccine (CR88 strain, Gallivac® IB88) belonging to the 793/B group of IBV. Group 2 received one dose of a H120 IB live vaccine at day-old and one dose of the 793/B vaccine at 14 days of age. All of the vaccines were applied by eye-drop. Groups 3 (“positive controls”) and 4 (“negative controls”) were not vaccinated. Groups 1, 2 and 3 were experimentally challenged with an infectious dose of 104DIE50 of IT-02 IBV strain, diluted in 0.1 ml of distilled water, and administered by oculo-nasal route at 35 days of age. Group 4 was kept unvaccinated and unchallenged. The groups were monitored during the 7 days post-challenge to assess vaccine protection by evaluating the following parameters: clinical signs and gross lesions, level of antibodies to IBV detected by ELISA and ciliary motility of tracheal epithelium. Ciliary motility is a natural mechanism of defence of the respiratory tract of animals against external agents such as viruses and bacteria that could colonize the airways causing infections and lesions in those tissues. Neither clinical signs nor lesions were caused by the IT-02 IBV challenge in the vaccinated groups, whereas respiratory signs were observed in the group of positive controls. A serological response was detected from 14 days of age in all of the vaccinated groups, with the highest levels observed in Group 2 vaccinated with H120 at day old and 793/B at 14 days. The level of protection afforded by vaccination, as measured by ciliary motility of tracheal rings 3 and 7 days postchallenge, proved to be above 95% in Group 2 which reported a protection index comparable to that of the unchallenged controls (Group 4); it was above 80% in Group 1, whereas it was 0% in Group 3 (positive controls). Overall these results indicate that cross-protection could be achieved by vaccination with commercially available live IBV vaccines, against a novel strain of IBV, IT-02, that emerged in Europe during the last few years. The highest protection was recorded in Group 2, vaccinated with H120 at dayold and 793/B at 14 days of age. ID nr. 4258 Carra° E, Taddei° R, Barbieri° I, Botti° G, Tranquillo° V, Iori A, Gibelli L, Cerioli° M, Cavadini° P, Gelmetti° D, Pongolini° S, Capucci° L Evaluation of three rapid diagnostic test used in bovine spongiform encephalopathy on 3 million cows III Workshop nazionale di virologia veterinaria : Istituto Superiore di Sanità, Facoltà di medicina veterinaria, Università degli studi di Bari : Valenzano (Bari), 11-12 giugno 2009 : riassunti / a cura di Emiliana Falcone ... [et al.]. - Roma : Istituto Superiore di Sanità, c2009. - (ISTISAN congressi ; 09/C4) p 30 Workshop Nazionale di virologia veterinaria (3. : Valenzano (Bari) : 11-12 giugno 2009) First author Carra, Elena In 2001 in Italy an active surveillance system was started to assess the prevalence of BSE in the cattle population, based on the use of laboratory rapid tests.The aim of the current study was to report on the field performances of 3 rapid tests: a western blot (WB), a chemiluminescence enzyme-linked immunosorbent assay (ELISA), and an immunochromatographic assay, routinely used at 3 laboratories of the IZSLER over 8 years and on 3 million cows tested. The 3 tests proved to be reliable tools when applied to slaughtered samples, showing no o very low false-positive, and low retesting frequencies. The performances of the immunochromatographic assay, and especially the chemiluninescence ELISA were negatively affected, resulting in higher false-positive and retesting rates on samples from fallen stock. ID nr. 4262 Chiari° M, Zanoni° MG, Alborali° L, Salogni° C, Tittarelli C, Tagliabue° S, Fabbi° M, Capucci° L, Lavazza° A Application of a surveillance Program in Wild European Brown Hares (Lepus europeaus) in Brescia province, North Italy Atti del III Convegno Nazionale di Ecopatologia della Fauna Torino SIEF, 15-17 Ottobre 2009 / [s.l. : s.n., 2009]. - p 14 Pag. 188 di 300 31/08/2011 Convegno Nazionale di Ecopatologia della Fauna Torino SIEF (3 : Torino : 15-17 Ottobre 2009) First author Chiari, Mario European brown hare is a game animal that undergoes to specific hunting management and restocking programs. The progressive declining of the stability of hares’ populations in Europe has been associated, among the other causes, to the occurrence of European Brown Hare Syndrome (EBHS). In mid ’90, the serological checking of hares captured in closed zones (named ZRC), used for restocking of free-hunting areas, represented the first application of a sanitary program. On hunting season 2006-07, a more completed sanitary surveillance was adopted in Brescia Province. In addition to the control of hares captured in ZRC, both the causes of death in free-living dead hares were determined and the internal organs of hares shot during hunting were gathered and examined. Post-mortem examination and bacteriological, virological and parasitological analysis as well as serological tests for EBHS, Brucella sp, Francisella tularensis, Leptospira interrogans antibodies were carried out. Two types of serum sampling were used i.e. blood on paper from open wound (shot hares) and liquid in the heart cavities (dead hares). In addition to the 252 sera taken in 7 different ZRC and the hares (31 carcasses and 150 shot) examined during 3 hunting season, 464 sera taken from hares captured in ZRC during non-consecutive hunting seasons were examined. Laboratory results indicate that EBHS is endemic in Brescia province and it is sporadically but constantly detected (diagnosed in 5 dead and 1 shot hares). A high seroprevalence with low level of mortality was found especially in high density areas. Other diseases including zoonosis (brucellosis and tularemia) were never detected, but Toxoplasma gondi was sporadically identified. The most common observed diseases were pseudotubercolosis, pasteurellosis and parasitic infestations (coccidiosis, verminosis). The results of this study firstly suggest that the deterministic model explaining the natural diffusion of EBHS could fit in the study areas: where densities were higher, the virus could circulate stimulating hares immunity. Then, it should be pointed that the application of surveillance programs is useful to ascertain the health status of hares and represents an important part of that integrated hunting management based on the use of animals produced on site within closed controlled zones for the restocking of hunting areas.. ID nr. 4263 Chiari° M, Lanfranchi° P, Zanoni° MG, Alborali° L, Salogni° C, Tittarelli° C, Tagliabue° S, Fabbi° M, Lavazza° A Application of a surveillance Program in Wild European Brown Hares (Lepus europeaus) in Brescia province, North Italy VI International Symposium on Wild Fauna : May 21-24, 2009 Paris, France : Atti / [s.l. : s.n., 2009]. - p 137 International Symposium on Wild Fauna (6 : Paris, France : May 21-24, 2009) First author Chiari, Mario The progressive decreasing in Europe of hare densities and the occurrence of epidemic diseases impose the application of surveillance programs. This study focuses on the epidemiology of EBHS and other bacterial and viral diseases in selected populations of free-living brown hares in Brescia, a province of North Italy. Either serological as well as post mortem examination and bacteriological, virological and parasitological analysis were carried out. ID nr. 4264 Tittarelli° C, Gelmetti° D, Rota° Nodari S, Gibelli° L, Lavazza° A Encephalitozoonosis of rabbits: the relationship between macro-microscopic kidney lesions and antibody titers in rabbits at slaughterhouse Atti delle Giornate di coniglicoltura ASIC 2009 : Forlì 2-3 Aprile 2009 / [s.l. : s.n., 2009]. - p 81-83. - 6 bib ref Giornate di coniglicoltura ASIC : Forlì : 2-3 Aprile 2009) Project RELO2004685CUNISVEZZ - Influence of weaning age and diet on productive performance, prevention of digestive diseases and welfare of the young rabbit - Toschi Dr. Ivan - UO - REGIONE Pag. 189 di 300 31/08/2011 - 2004 - 92817,00 EUR - 04/10/2004 0.00.00 - 31/01/2007 0.00.00 - 1 - G1 - Reparto di Virologia e Sierologia Specializzata - Lavazza Dr. Antonio - I PRC2005010 - Importance of blood sampling as investigation tool for the evaluation of health condition and welfare of farming rabbits - Lavazza Dr. Antonio - Capofila - MINSAN - 2005 02/10/2006 0.00.00 - 02/05/2009 0.00.00 - 53000,00 EUR 1 - G1 - Reparto di Virologia e Sierologia Specializzata - Lavazza Dr. Antonio - I 2 - IZSUM - Perugini Dr. Gianni - E 3 - S.A.T.A. Servizio di Assistenza Tecnica Allevamenti - Sezione Conigli - Regione Lombardia Brivio Dr. Ruggero - E First author Tittarelli, Cristiana Encephalitozoonosis is a chronic parasitic infection caused by E. cuniculi, largely diffused in industrial rabbit farms in Italy. From 107 meat or adult rabbits taken at slaughterhouse, we sampled the kidneys and the blood in order to correlate macroscopic and microscopic lesions to anti-E.cuniculi antibodies determined using Carbon Immono Assay (CIA) test. Over 85% of rabbits with lesions scoring from 1 to 4 resulted seropositive whereas only 12% of the animals without kidney lesions were positive. A good correlation was found between serological titers, ranging between 1/40 to 1/5120, and severity of lesions. The microscopic lesions reflected the severity of the infection, thus making possible a graduation system on the base of the various changes observed in the glomeruli and in the tubuli. ID nr. 4265 Stacchiotti A, Pedretti N, Lavazza° A, Zanola A, Grigolato P, Aleo ME, Rezzani R Nephrotoxic metals and stress response: a comparative in vitro study Ital J Anat Embryol. - Vol. 114 no 2 suppl. 1 ( 2009). - p 208 Congresso Nazionale della Società Italiana di Anatomia e Istologia (63 : Torino : 10-12 September 2009) Mercury Hg, lead Pb and cisplatin CisPt are nephrotoxic metals that affect S3 portion of cortical proximal tubules. The unifying factor in determining their toxicity appears to be the generation of reactive oxygen ROS and nitrogen species RNS that induces cellular defence mechanísm i.e. GSH, antioxidant enzymes, stress proteins or may lead to cell-death by autophagy, apoptosis or necrosis. Autophagy is thought to be a general response to stress contributing to cell death, but it may act as a cytoprotective mechanism. Stress proteins, i.e. heat shock proteins HSPs, glucose regulated proteins GRPs and metallothioneins MTs, are cytoprotective chaperones that stabilize other proteins or organelles damaged by heavy metals. This in vitro study was performed to compare the effects of HgC12 1-40rnicroM, PbC12 10-500microM and CisPt 10-200microM, in a rat proximal tubular celi line NRK52E exposed to each metal from 3h up to 48h. In partícular we focused on the distribution and abundance of HSP72, HSP25, GRP75, GRP78, MTs and the expression of LC3-II a marker of autophagy, by immunohistochemistry and immunoblotting. Concomitantly wc evaluated ROS/RNS production and apoptosis/ necrosis by FACS or ultrastructural analysis.After 24h of treatment, 20 microM HgII induced apoptosis/necrosis and ROS/RNS production that well correlateti with HSP72 and MTs induction. In contrast, 60 or 300 microM PbII, evaluated at the same time, stimulated ER chaperone GRP78, but was unable to induce HSP72, MTs, nor ROS/RNS. Remarkably, 10 microM CisPt early stimulated autophagy, while, except for GRP78, stress proteins enhanced later at 24h following exposure to 50 microM CisPt, concurrently with ROS, apoptosis and cytoskeleton damage. These results outline that, in NRK52E cell line, the metal-induced stress chaperones are related to nephrotoxic mechanisms, such as oxidative damage and apoptosis, but their expression changes as a function of each metal; in addition, the over-expression of ER chaperone GRP78 appears to be associated to autophagy. So, the modulation of the stress response may represent a complementary tool to better understand the specific mechanisms of meta] induced nephrotoxicity.. ID nr. 4266 Corsetti G, Stacchiotti A, Filippini F, Lavazza° A, Rezzani R Beneficial effects of amino acid supplementation in aged mice kidney Pag. 190 di 300 31/08/2011 Ital J Anat Embryol. - Vol. 114 no 2 suppl. 1 ( 2009). - p 74 Congresso Nazionale della Società Italiana di Anatomia e Istologia (63 : Torino : 10-12 September 2009) The kidney is particularly affected by age even when other pathology is absent, due to high requirement for an active oxidative metabolism and regulation of blood pressure. It has been reported that balanced dici limited aged-induced structural and metabolic changes in humans and experimental animals. This study was performed to assess the efficacy of ora] amino acid AA mixture supplementation on the kidney of aged mice. Methods: C573BL/6 mice were divided in two g~roups consisting of 12 months old controls treated with standard rodent diet and tap water, and AA-group, administered AA mixture big-one 05, 1.5 g/kg daily in drinking tap water for three months. Additionally 2 months old mice were used as adult physiological controls. Fibrosis and collagen deposition were studied by Masson thrichrome and Sirius red polarized microscopy. Moreover perfusion status of glomerulus and interstitial peritubular space was described by VEGF imnnmohistochemistry. On semithin sections we measured the volume and density n°/100p2 of glomeruli and the ratio between glomerular volume and total volume Vg/Vt. At ultrastructural leve], we evaluated the tubular mitochondria distribution and density n°/100p2. Results Wc did not observe any difference in body weight between AA feed and aged controls. Long term AA supplementation attenuates glomerular and interstitial fibrosis, increases about 25% the Vg/Vt ratio 0.08±0.02 vs 0.10±0.03 eve if the density of glomeruli doesn't change. The expression of cytochrome c-oxidase increased strongly in AA animals. In addition, tubular eNOS immunostaining and VEGF pattern restricted to podocytes in aged mice, enhanced in glomerulus and peritubular space after AA supplementation, suggesting an improvement of blood perfusion. Furthermore, the Bc12 expression increased in AA group indicating the beneficial effects on tubular cells survival. The density of mitochondria increased strongly in AA treated vs aged controls 15 ± 5.031100p2 vs 11.12 ± 3.02/100p2 and they vere distríbuted mainly near the basolateral side in proximal tubules. The results obtained from aged mice supplemented with AA vere similar to adult controls. Conclusions: These preliminary data corroborate the hypothesis, previously test-ed in muscles and heart, that a balanced nutritional intake might be crucial to delay ageing changes in tbc kidney.. ID nr. 4267 Spaggiari° B, Rugna° G, Licata° E, Frasnelli° M, Barigazzi° G, Gelmini° L, Massi° P, Renzi° M, Ricchi° M, Merialdi° G Wildlife fauna monitoring program in emilia romagna: health status of roe deer (Capreolus capreolus) population Atti del III Convegno Nazionale di Ecopatologia della Fauna Torino SIEF, 15-17 Ottobre 2009 / [s.l. : s.n., 2009]. - p 16 Convegno Nazionale di Ecopatologia della Fauna Torino SIEF (3 : Torino : 15-17 Ottobre 2009) First author Spaggiari, Brunella Roe deer (RD) was included in target species of Emilia Romagna monitoring program of wildlife during 20082009 with the aim of gathering information on population health status, prevalence of zoonotic agents and relevant infectious diseases for interacting domestic livestock. The regional plan included serological investigations for M. avium subsp. paratuberculosis (MAP), Brucella spp. and B. burgdorferi antibodies on hunter-killed RD. Additional investigations for MAP, Brucella spp., VTEC, Y. enterocolitica, Salmonella spp. and gastrointestinal parasites were performed on either found-dead (except for run-over subjects) or sick (including unhealthy culled individuals) RD by bacteriological, biomolecular and parasitological analyses. Data were evaluated by Fisher’s exact test (p<0.05). Overall 576 RD were examined: 464 hunter-killed and 112 either found-dead or sick. During post-mortem examination of carcasses or viscera, gross signs of enterocolitis and diarrhoea were found in 14% of cases. Significantly, 55% of found-dead RD exhibited diarrhoea while only 4% of hunted ones did. Serological investigations for Brucella spp. yielded negative outcomes, while B. burgdorferi infection was found in 56/273 individuals. MAP antibodies were found in 4/353 healthy RD. On the other hand, MAP PCR-positive RD (7/35) were diarrhoic individuals. EAE gene+ E. coli was detected 13/94 animals with statistically significant differences between shot and found-dead/sick RD. Moreover, the pathogen was prevalent (p<0,05) in diarrhoic animals. Salmonella spp. was isolated from 2 non-diarrhoic culled RD. Eight percent of RD tested positive for Y. enterocolitica Biogroup1A, which includes non-pathogenic european strains. Gastrointestinal strongyles occurred at high prevalence (46/131) even Pag. 191 di 300 31/08/2011 though low parasite burdens prevailed. When present, low level coccidia parasitism (16/131) almost always co-occurred with worms and rarely associated with diarrhoea. In the current survey pathogens typical of wild ruminants were found to be associated with enterocolitis in RD. With respect to the investigated pathogens, RD population does not represent an important source of zoonotic agents and its role in disease transmission to livestock needs to be further investigated. ID nr. 4268 Renzi° M, Buratti° L, Frasnelli° M, Rugna° G, Spaggiari° B, Merialdi° G Serological survey on toxoplasma gondii diffusion in roe deer (Capreolus capreolus) in Emilia Romagna Atti del III Convegno Nazionale di Ecopatologia della Fauna Torino SIEF, 15-17 Ottobre 2009 / [s.l. : s.n., 2009]. - p 33 Convegno Nazionale di Ecopatologia della Fauna Torino SIEF (3 : Torino : 15-17 Ottobre 2009) First author Renzi, Maria In Emilia Romagna roe deer (RD) (Capreolus capreolus) population has been constantly increasing during recent years reaching high values of biotic density. The presence of Toxoplasma gondii in wild ruminants and in other wild species was recognized since the early 1960s and RD is known to be an intermediate host of the parasite. A seroprevalence study was performed during 2008-2009 to verify and quantify the diffusion of T. gondii infection in RD populations of Emilia Romagna. In the present study the resulting prevalences are presented and the efficacy of a multispecies ELISA assay is evaluated as an alternative to direct agglutination test. RD sera were collected from Jan 2008 to Jul 2009 during Emilia Romagna regional wild fauna monitoring plan and tested for T. gondii antibodies (Abs) by ELISA assay (ID-VET® commercial multispecies kit). Positive sera were tested and confirmed by Indirect Immunofluorescence (IFI) (OIE method for sheep and goat) using Biomerieux® slides and anti-RD IgG produced by IZSLER. Abs titers = 1:40 were considered positive. Association was analyzed between prevalence data and risk factors such as of sex, province and age class (3 age classes: <11 mths; 12-23 mths; >23 mths) ( 2 test). Two hundred forty eight RD sera were examined and 63 tested positive, for an overall 25,4% prevalence (CI 95%: 20,1%-31,3%). Each ELISA-positive sample was confirmed by IFI. In each province the prevalence was found to be as follows: Bologna 25,3% (CI 95%: 16,036,7), Forlì-Cesena 40% (CI 95%: 5,3-85,3), Modena 21,9% (CI 95%: 9,3-40,0), Ravenna 22,5% (CI 95%: 13,5-34,0), Reggio Emilia 29,2% (CI 95%: 18,6-41,8). No statistically significant differences were found for different provinces and sex (p>0,05), while seroprevalence levels were significantly different in different age classes (p<0,01): higher prevalences were found in individuals older than 23 mths (<12mths: 14,3%; 13mths23mth: 9,1%; >24mths: 32,06%). The prevalence found in the present study is medium-to-high if compared to the prevalence found in some alpine areas and demonstrates the high and diffused exposure of adult roe deer to Toxoplasma infection. Risk factors for toxoplasmosis transmission need to be further investigated. The employed ELISA assay resulted to be specific and easy to use, representing an effective alternative to direct agglutination test. ID nr. 4269 Spaggiari° B, Gelmini° L, Fontana° MC, Lavazza° A, Merialdi° G Diagnostic investigation on found-dead brown hares (Lepus europaeus) in three Emilia Romagna provinces during 2008 Atti del III Convegno Nazionale di Ecopatologia della Fauna Torino SIEF, 15-17 Ottobre 2009 / [s.l. : s.n., 2009]. - p 34 Convegno Nazionale di Ecopatologia della Fauna Torino SIEF (3 : Torino : 15-17 Ottobre 2009) First author Spaggiari, Brunella The aim of this work is to report the result of diagnostic investigations performed to ascertain the causes, infectious or not, of death of wild brown hares (Lepus europaeus) found dead in the territory of three Emilia- Pag. 192 di 300 31/08/2011 Romagna provinces (Reggio Emilia, Modena and Bologna). The carcasses of found-dead hares were submitted to IZSLER laboratories for necropsy in order to establish the presence of infectious diseases and identify the cause of death. Bacteriological, parasitological, virological (EBHS) investigations were performed on all submitted subjects; cyto-histological and PCR methods (Toxoplasma gondii and Francisella tularensis) were applied for further specific investigations. Overall 59 animals were examined. EBHSV antigen was found in 4 hares showing typical lesions. Acute trauma was lethal for 5 individuals. Regarding bacterial and mycotic infections, the following diagnoses were established: pasteurellosis (3), streptococcal infection (3), pseudotuberculosis (2) and aspergillosis (2). As far as endoparasites are concerned: intestinal coccidiosis (11), serosal/hepatic cysticercosis (10), parasitic broncopneumonia (Protostrongylus spp.) (8) and toxoplasmosis (5) were diagnosed. Tick infestation was present in 4 hares. Finally, one hare was affected by lymphoma and another one by proliferative hepatitis. Parasitic diseases were therefore the most frequently detected ones (64%), followed by bacterial/mycotic diseases (17%), viral/neoplastic diseases (10%) and trauma (8%). Intestinal coccidiosis was the most frequently diagnosed disease but also Cysticercus pisiformis represented an interesting and relatively frequent finding. Fatal toxoplasmosis was established as the cause of death in 8% of hares, which represents an index of the territorial pressure by definitive hosts (relevant environmental contamination with oocysts). Two relevant zoonotic agents, Brucella spp. and Francisella tularensis, were never detected. EBHSV, which indeed is endemic in Emilia Romagna since more than 20 years, was detected in a relative low number of hares, suggesting that this virus is not one of the most common causes of death, as often occurs where the hares’ population have a large seroprevalencence. A wide range of pathogens was found in the present investigation. Monitoring programs of wild population of brown hare would be useful in order to better understand the epidemiology of different pathogens and their impact on brown hare population health status . ID nr. 4270 Giammarioli M, Canelli° E, Ciulli S, Rossi E, De_Mia GM Genetic diversity of bovine viral diarrhoea virus isolates from Italy 8th International Congress of Veterinary Virology : 23rd - 26th August 2009 Budapest - Hungary : 20 years of ESVV: Integrating Classical and Molecular Virology : Programme & proceeding / [s.l : s.n., 2009]. - p 143 - 5 bib ref International Congress of Veterinary Virology (8. : Budapest - Hungary : 23rd - 26th August 2009) ID nr. 4271 De_Bernardis° F, Finazzi° G, Daminelli° P, Bertolassi° R, Boni° P, Bonometti° E, Boni° P Dynamic of several pathogens in artificially contaminated Salame Piacentino DOP VII workshop nazionale Enter-net Italia Sistema di sorveglianza delle infezioni enteriche Infezioni trasmesse da alimenti e acqua : diagnostica ed epidemiologia : 4-5 novembre 2009 Roma / a cura di I Luzzi... [et al.]. Roma : Istituto Superiore di Sanità, 2009. - (ISTISAN congressi ; 09/C10) p 30 Workshop nazionale Enter-net Italia (7 : Roma : 4-5 novembre 2009) First author De_Bernardis, Federica The aim of this trial was to value the dynamic of Salmonella typhimurium, L. monocytogenes and E. coli O157:H7, during the seasoning of Salame Piacentino DOP. Different salami were artificially contaminated during preparation with these pathogens and samples were collected during the seasoning period. Salmonella typhimurium decreased with a linear trend characterized by decimal decreasing time (D) = 16 days e 20 hours ± 19 hours. E. coli O157:H7 decreased with a D = 13 days e 5 hours ± 13 hours. Decreasing of L. monocytogenes observed was very slow, with a D = 112 days e 23 hours ± 32 days e 21 hours, even in presence of Staph. carnosus used as a starter culture. Pag. 193 di 300 31/08/2011 ID nr. 4272 De_Nadai° V, Finazzi° G, Daminelli° P, Bertolassi° R, Boni° P Behavioural dynamics of several pathogen microorganisms during processing and ripening of Bagòss cheese VII workshop nazionale Enter-net Italia Sistema di sorveglianza delle infezioni enteriche Infezioni trasmesse da alimenti e acqua : diagnostica ed epidemiologia : 4-5 novembre 2009 Roma / a cura di I Luzzi... [et al.]. Roma : Istituto Superiore di Sanità, 2009. - (ISTISAN congressi ; 09/C10) p 32 Workshop nazionale Enter-net Italia (7 : Roma : 4-5 novembre 2009) Project PRC2007001 - Determination of quality and safety features based on predictive microbiology and risk assessment of traditional regional food products - Finazzi Dr. Guido CON DELIBERA DG N. 461 DEL 17/09/2010 SOSTITUITO DR. BONI CON DR. FINAZZI - Solo - MINSAN - 2007 - 615000,00 EUR - 01/09/2008 0.00.00 - 31/08/2010 0.00.00 - 1 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 2 - M6 - Sezione diagnostica provinciale di Mantova - Franzini Giuliana - I 3 - M9 - Sezione diagnostica provinciale di Sondrio - Bertoletti Dr.ssa Irene - I 4 - N1 - Sezione diagnostica provinciale di Bologna - Bardasi Dr.ssa Lia - I 5 - N6 - Sezione diagnostica provinciale di Piacenza - Cammi Dr.ssa Giuliana - I 6 - N7 - Sezione diagnostica provinciale di Ravenna (Lugo di Romagna) - Raffini Dr. ssa Elisabetta - I First author De_Nadai, Valentina The aim of the survey was to value the behaviour of the most common dairy pathogens in the Bagòss, a peculiar ripe cheese of the Bagolino area (Brescia). Milk wasn contaminated with a three strains suspension of each of the investigated microorganism (L. monocytogenes, Salmonella typhimurium, E. coli O157:H7 e Staph. aureus), then processed and ripened in collaboration with the dairy. Cooking and next rest under whey of curd were not able to determine any effect on pathogens concentration. But rather the ripening ensured the abatement of Salmonella, E. coli and Staph. aureus and the decrease of 4-5 log of Listeria concentration. ID nr. 4273 Oliverio° E, Finazzi° G, Daminelli° P, Ducoli° S, Costanzi C, Bonometti° E Behaviour of enteroxigenic Staph. aureus in cow milk added with lactic starter culture VII workshop nazionale Enter-net Italia Sistema di sorveglianza delle infezioni enteriche Infezioni trasmesse da alimenti e acqua : diagnostica ed epidemiologia : 4-5 novembre 2009 Roma / a cura di I Luzzi... [et al.]. Roma : Istituto Superiore di Sanità, 2009. - (ISTISAN congressi ; 09/C10) p 52 Workshop nazionale Enter-net Italia (7 : Roma : 4-5 novembre 2009) First author Oliverio, Elisa Aim of this trial was to value effects of lactic flora on enterotoxigenic Staph. aureus in milk. Two batches of UHT milk, one inoculated with 5% of yogurt, were contaminated with a pathogen concentration of 104- 105 ufc/ml; two batches of raw milk, one inoculated with 5% of yogurt were contaminated in the same way. Staph. aureus population increased and produced the toxin within 28 hours in UHT milk without lactic flora added stored at 20°C. In UHT milk with yogurt and in both raw milk samples pathogen concentration didn’t vary without toxin production. Lactic flora naturally or artificially added to milk is able to inhibit Staph. aureus replication and toxin production at 20°C. ID nr. 4274 Miraglia° V, Finazzi° G, Daminelli° P, Monastero° P, Bertolassi° R, Todeschi° S, Boni° P Check of histamin presence in Iseo lake Alosa fallax lacustris kept in oil and in-vitro evaluation VII workshop nazionale Enter-net Italia Sistema di sorveglianza delle infezioni enteriche Infezioni trasmesse da alimenti e acqua : diagnostica ed epidemiologia : 4-5 novembre 2009 Roma / a cura di I Luzzi... [et al.]. - Pag. 194 di 300 31/08/2011 Roma : Istituto Superiore di Sanità, 2009. - (ISTISAN congressi ; 09/C10) p 49 Workshop nazionale Enter-net Italia (7 : Roma : 4-5 novembre 2009) First author Miraglia, Viviana Batches of Iseo lake Alosa fallax lacustris kept in oil coming from five different producers were analysed for histamine presence. In 2 samples were found 568 and 101 ppm of histamin associated to Enterobacteraceae concentration of 103-105 ufc/g. Hafnia alvei strains isolated from positive fishes were inoculated in Tuna fish infusion broth and kept at 30°C for over 60 days. In vitro histamin production was observed, with increasing of concentration, not only associated to the log phase of Hafnia but also during stationary and decreasing phases. ID nr. 4275 Brookes MB, Irvine RM, NunezN, Clifford D, Essen S, Brown JH, Van_Reeth K, KuntzSimon G, Loeffen L, Foni° E, Larsen L, Matrosovich M, Bublot M, Maldonado J, Beer M, Cattoli G Influenza A (H1N1) infection in pigs Vet Rec. - Vol. 164 no 24 ( 2009). - p760-761. - 2 bib ref Impact factor: 1,240 ID nr. 4276 Recordati C, Gualdi V, Craven M, Sala° L, Luini° M, Lanzoni A, Rishniw M, Simpson KW, Scanziani E. Spatial distribution of Helicobacter spp. in the gastrointestinal tract of dogs. Helicobacter. - Vol. 14 ( 2009). - p 180-191. - 43 bib ref Impact factor: 2,470 BACKGROUND: In dogs, the gastric Helicobacter spp. have been well studied, but there is little information regarding the other parts of the alimentary system. We sought to determine the spatial distribution of Helicobacter spp. in the gastrointestinal tract and the hepatobiliary system of dogs using culture-independent methods. MATERIALS AND METHODS: Samples of stomach, duodenum, ileum, cecum, colon, pancreas, liver, and bile from six dogs were evaluated for Helicobacter spp. by genus, gastric, and enterohepatic Helicobacter spp. Polymerase chain reaction, 16S rRNA gene sequence analysis, immunohistochemistry, and fluorescence in situ hybridization (FISH). RESULTS: In the stomach, Helicobacter spp. DNA was detected in all six dogs, with H. bizzozeronii and H. felis identified by specific polymerase chain reaction. Helicobacter organisms were localized within the surface mucus, the lumen of gastric glands, and inside parietal cells. The small intestine harbored gastric and enterohepatic Helicobacter spp. DNA/antigen in low amounts. In the cecum and colon, Helicobacter spp. DNA, with highest similarity to H. bilis/flexispira taxon 8, H. cinaedi, and H. canis, was detected in all six dogs. Helicobacter organisms were localized at the mucosal surface and within the crypts. Gastric Helicobacter spp. DNA was detected occasionally in the large intestine, but no gastric Helicobacter spp. were present in clone libraries or detected by FISH. CONCLUSIONS: This study demonstrates that in addition to the stomach, the large intestine of dogs is also abundantly colonized by Helicobacter spp. Additional studies are necessary to investigate the association between enterohepatic Helicobacter spp. and presence of intestinal inflammatory or proliferative disorders in dogs. ID nr. 4277 Radaelli E, Luini° M, Domeneghini C, Loria GR, Recordati C, Radaelli P, Scanziani E. Expression of class II major histocompatibility complex molecules in chronic pulmonary Mycoplasma bovis infection in cattle J Comp Pathol. - Vol. 140 ( 2009). - p 198-202. - 17 bib ref Pag. 195 di 300 31/08/2011 Impact factor: 1,398 Pulmonary inflammation often results in expression of the class II major histocompatibility complex (MHCII) by both professional antigen-presenting cells (APCs; histiocytes and lymphocytes) and non-professional APCs (respiratory epithelium and endothelium). In this study lesions from 17 cases of bovine chronic pneumonia, associated with Mycoplasma bovis infection, were examined immunohistochemically for M. bovis antigen and MHCII expression. Ten cases of chronic necrosuppurative bronchopneumonia (NBP) were shown to be characterized by abundant perinecrotic M. bovis antigen associated with scant MHCII expression by degenerate leucocytes. Seven cases of chronic catarrhal bronchointerstitial pneumonia (CBP) showed prominent MHCII expression by both professional APCs and respiratory epithelium, in the absence of intralesional M. bovis immunolabelling. The results suggest that prominent MHCII expression by both professional and non-professional APCs plays a role in the pathogenesis of M. bovis-induced CBP. Conversely, the role of MHCII expression in necrosuppurative foci typical of M. bovis-associated NBP can be considered negligible. ID nr. 4278 Kuntz-Simon G, Kyriakis CS, Foni° E, Maldonado J, Loeffen W, Brown IH, Essen S, Madec F, Matrosovich M, Bublot M, Chenchev I, Peiris M, Ólsen C, Van_Reeth K The european surveillance network for influenza in pigs (ESNIP) Third annual meeting Epizone : "Crossing borders" : 12-15 May 2009 Antalya, Turkey / [s.l. : s. n., 2009]. Annual meeting Epizone (3rd : Antalya, Turkey : 12-15 May, 2009) Project ESNIP2 - "European surveillance network for influenza in pigs 2 (ESNIP 2). - Van Reet dr.ssa Kristien - UO - CE - 2005 - 300000,00 EUR - 01/01/2006 0.00.00 - 31/03/2009 0.00.00 - 4 - N5 - Parma - Foni Dr.ssa Emanuela - I Swine influenza is an important cause of acute respiratory disease in pigs and pigs are considered as an intermediate host for the transmission of influenza viruses to humans. While surveillance networks for human, equine and avian influenza have been established decades ago, surveillance for swine influenza has long been neglected. The "European Surveillance Network for Influenza in Pigs 2" (ESNIP 2) was a co-ordination action (SSPE-CT-2005-022749, January 2006 - March 2009) funded by the European Commission in the 6ch Framework Research Programme. It maintained and expanded the surveillance network established during ESNIP 1 (2001-2004) and aimed to improve our knowledge of the epidemiology and evolution of swine influenza viruses (SIVs) in Europe. During the 3-year period of the project, virological and serological surveillance have been conducted in parallel in six European countries. The data confirmed that SIVs of H1N1, H3N2 and H1N2 subtypes are co-circulating among European pigs. Still, there were differences in the prevalence of each subtype on regional or national levels, with little if any H3N2 activity in the UK or Brittany (Frane). No major antigenic changes in the hemagglutinin proteins of each SIV subtype were detected. However, novel reassortant viruses between the first generation 111N2 reassortants and avian-like swine H1N1 viruses were occasionally detected in Italy and France. These data will be used to optimise the diagnosis and control of swine influenza. European swine influenza researchers also started to liaise with researchers in the US and Asia with the purpose to compare the epidemiology of swine influenza on different continents. Furthermore, the ESNIP consortium has been working on improved methods for the serological detection of avian influenza in pigs. These initiatives and interactions are consistent with improved pandemic preparedness and planning for human influenza. ID nr. 4279 Lelli° D, Canelli° E, Luppi° A, Moreno° AM, Sozzi° E, Lombardi° G, Cordioli° P Comparison among different serological gE ELISA kits for Aujeszky's disease by testing sera from experimental infections 3th ESVV Veterinary Herpesvirus Symposium, April 22-24, 2009 Greifswald - Insel Riems / [s.n. : s.l., 2009]. - Pag. 196 di 300 31/08/2011 ESVV Veterinary Herpesvirus Symposium (3th : Greifswald - Insel Riems : April 22-24, 2009) First author Canelli, Elena The routine Aujeszky's disease diagnostic activity is based on the serological analysis, in particular on the detection of gE antibodies (gE-Ab). These antibodies are important for differentiating infected animals from those vaccinated with marker vaccines. Four monoclonal antibodies (MAbs) based gE competitive ELISA kits were used in a comparative analysis of 116 sera obtained from naive or vaccinated pigs, after the challenge with virulent 75D19 ADV strain. The compared-kits were: Ingenzim ADV SE® (Ingenasa); IDEXX ADV gp1O (Idexx); Svanovir PRV-9E-Ab® (Svanova) and our home-made kit (IZSLER, Brescia). They were randomly identified as kit 1; kit 2; kit 3 and kit 4. The 116 sera were obtained from forty-nine pigs (50 to 60 days old) that were experimentally infected in a strict confined "level 3" animal,facility by applying six different protocols in order to obtain sera with variable antibody titres. Results indicated that: a) pre-sera and sera sampled in the first days post challenge (5-6 d PI) were negative to each one of the four kits; b) 7-13 d PI sera gave discordant results, and only one kit correctly identified alt them as positive; c) sera obtained after the 13 d PI were positive to alt kits. These data underlined that tests had similar characteristics except for the ability to detect early infection antibodies. Therefore there were no significative differences among kits in the gE detection in very early and post 13 d PI sera. Sensibility and specificity were calculated for alt kits. Kit 1 is the most sensitive (90%); the specificity of all kits was 100%, demonstrating that repeated vaccinations did not result in false positive sera and that the gE-Ab were only induced after infection. Furthermore, in order to ascertain if the antibodies detected by the four different kits were directed towards the sure epitome or different ones, we also tested with the four kits eleven gE specific MAbs, which are known to recognize three different antigenical determinate. Obtained results revealed that alt the kits detected antibodies produced against the same or dose/overlapping epitopes. These epitopes are highly immunogenic, but certainly the possibility that pigs produce antibodies against other epitopes can not to be excluded. Therefore it would be useful for the future to make available a confirmatory test, different from the routine used competitive ELISA test, in particular at the end of an eradication plan, given that the presence of "singleton reactor" has been demonstrated also for the Aujeszky's disease. ID nr. 4280 Bulgari O, Campagnari M, Bolzoni° G, Gigliotti C, Caroli AM Quantification of bovine milk total protease activity Sci Tec Latt Casearia. - Vol. 60 no 5 ( 2009). - p 463-472. - 24 bib ref Milk protein system exerts a crucial role from the point of view of both milk nutritional quality and technological properties. It is a dynamic system: milk proteins synthesised by the mammary cells undergo the action of proteolitic enzymes with important effects on milk quality. Milk protein enzymatic hydrolysis can favourably affect flavour development and texture changes during cheese ripening. However, unwished proteolysis can have a negative effect on both dairy product quality and shelf-life. A colorimetric method was used to quantify total proteases in bovine herd and individual samples. The method, based on azocasein substrate, was optimised and standardised for fitting laboratory conditions and analysed milk characteristics. It is a cheap and easily applicable method and can be used for routine milk tests. A preliminary analysis was performed on 20 herd and 40 individual milk samples. The protease mean activity was 5.6 mU/mL (standard deviation =1.1 mU/mL; minimum value = 3.2 mU/mL; maximum value = 8.4 mU/mL). ID nr. 4282 Formato G, Giacomelli A, Nisi F, Bassi° S, Pongolini° S, Carra° E, Saccares S Sanitization of european foulbrood through different beekeeping pratice 41st "Apimondia" International Apicultural Congress : The bee, sentinel of the environment : 15-20 September 2009 Montepellier (France) / [Montepellier : s.l., 2009]. "Apimondia" International Apicultural Congress (41th : Montepellier (France) : 15-20 September 2009) Pag. 197 di 300 31/08/2011 ID nr. 4283 Venturi L, Angelini P, Baldelli R, Bellini R. Calzolari° M, Borrini BM, Dottori° M, Poglayen G, Rugna° G, Venturelli C, Martini E, Tamba° M Surveillance on vector-borne diseases in Emilia-Romagna Region, Italy Trop Med Int Health. - Vol. 14 suppl 2 ( 2009). - p 49 European Congress on Tropical Medicine and International Health : 6th Mediterranean Conference on Migration and Travel Health : 1st : Verona, Italy : 6-10 September 2009) Impact factor: 2,312 In recent years an increase in vector-borne disease activity has been recorded in different regions. The epidemiology of such diseases is conditioned by complex interactions among environment, parasite, vector, man and eventually animal – either domestic or wild – reservoir. Global warming together with the increase of transport of goods, animals and people travels are impacting the risk that exotic species, both of insects andparasites, enter and establish in new territories. For these reasons a regional surveillance program focused on vectored diseases was implemented in Emilia-Romagna. The aim of the project is to create a regional surveillance and risk assessment system based on a multidisciplinary network, with the capability of collecting data about both vector populations dynamics, and possible presence of pathogens in vectors, men and animals. It has therefore been constituted a working group, coordinated by the General Direction for Health and Social Policy of the Emilia-Romagna Region, composed by physicians, veterinarians and entomologists. Activities have been addressed to the activation of an entomological monitoring system for key vectors, to the development of diagnostic procedures of selected zoonosis, to the predisposition of a training program. Because it is endemic in Emilia-Romagna Region, Leishmaniasis has been selected to test the system. After only two months from its constitution, the working group had to manage the Chikungunya epidemic occurred in Ravenna and Cervia municipalities during summer of 2007. After only 15 days from the reporting of the first human cases, it has been possible to perform the diagnosis, isolating the virus from the vector (Aedes albopictus), to define a reporting system of clinical suspects and diagnostic procedures in man. In the same time an intensive vector control program was carried out in infected areas. The timing organization of a multidisciplinary network focused on vector diseases surveillance and control is producing important positive output in terms of managing capacity of epidemic situation and risk assessment. ID nr. 4284 Luppi° A, Fontana° MC, Galletti° E, Spaggiari° B, Maioli° G, Bonilauri° P, Dottori° M, Trocchi V, Merialdi° G Fatal toxoplasmosis in European brown hares (Lepus europaeus) in Northern Italy VI International Symposium on Wild Fauna : May 21-24, 2009 Paris, France : Atti / [s.l. : s.n., 2009]. - p 157158. - 4 bib ref International Symposium on Wild Fauna (6 : Paris, France : May 21-24, 2009) First author Luppi, Andrea Six cases of fatal acute toxoplasmosis were observed in hares in different areas of Emilia Romagna region, in Northern Italy, during a period of four months. The most characteristic lesion in all hares was a severe splenomegaly. Toxoplasmosis was diagnosed through cytological examination of spleen imprint sampled slides, confirmed by PCR in all hares. The high incidence of acute fatal cases of toxoplasmosis in hares agrees with the observations of other Authors (Gustafsson et al., 1997). For this reasons hares should be considered exceptionally susceptible to primary Toxoplasma gondii infection. Epidemiology and prevalence of T. gondii in hares in Northern Italy necds further investigations.nThe monitoring of the disease in hares could be used to evaluate the level of environmental oocysts contamination in specific geographic areas. ID nr. 4285 Magnino° S, Ferreri AJM, Ponzoni M Cangi MG, Pasini E, Govi S, Sacchi L, Pecciarini L, Pag. 198 di 300 31/08/2011 RestiAG, Guidoboni M, Vicari° N, Doglioni C, Dolcetti R Issues on the association between Chlamydophila psittaci infection and ocular adnexal lymphomas 1st europena meeting on animal chlamydioses and zoonotic aspects EMAC : June 14-16, 2009 Murcia, Spain : Procedings / by Caro MR, Salinas J, Buendia AJ. - [s. n. : s. l., 2009]. - p 42. - 5 bib ref Europen meeting on animal chlamydioses and zoonotic aspects (1st : Murcia, Spain : June 14-16, 2009) First author Magnino, Simone Several lines of evidence support the association between Chlamydophila psittaci (Cp), the agent of avian chlamydiosis in birds and psittacosis-omithosis in humans, and ocular adnexal lymphoma of mucosaassociated lymphoid tissue (MALT)-type (OAML), an indolent malignancy involving conjunctiva, lachrymal gland, orbital soft tissues, eyehd and lacrimai sac (1). PCR-based methods have allowed to detect Cp DNA in the lymphoma samples of 80% of cases and in the peripheral blood mononuclear ce115 (PBMC) of 41% of these patients (1); immunohistochemistry, immunofluorescence, and laser-capture microdissection-assisted PCR of lymphoma biopsies have showed thai monocytes/macrophages are the carriers of Cp (2); transmission electron microscopy has demonstrated the presence of Cp elementary bodies in the cytoplasm of monocytes/macrophages within OAML specimens (2). Cp has been isolated in celi cultures from PBMC and from conjunctival swabs of OAML patients (3); finally, the treatment of OAML patients with specific antibiotics (doxycycline) leading to eradication of Cp has resulted in long-lasting lymphoma remissions in 65% of patients (4). There is a wide variability in Cp prevalence in OAML patients among countries and among different regions within the saure country (5). For example, the prevalence of Cp infection in OAML patients has been found to be 75% and 75-80% in studies from South Korea and from Italy, and 54% and 47% in an Austrian and a German study, respectively, while no association at ali was reported in studies from Japan and some US regions. Such variability may reflect genuine geographical variations or methodological biases, e.g. variations in PCR techniques and conditions. The establishment of animal models confirming the lymphomagenic potential of Cp and the development of in vitro tests for assessing the ability of lymphocytes from OAML patients to proliferate, when stimulated by chlamydial antigens, are now considered among the highest research príorities in this field. ID nr. 4286 Laroucau K, Vorimore F, Sachse K, Vretou E, Siarkou V, Hermann W, Magnino° S, Rodolakis A, Bavoil PM Identification of Chlamydophila abortus vaccine strain 1B by PCR-RFLP 1st europena meeting on animal chlamydioses and zoonotic aspects EMAC : June 14-16, 2009 Murcia, Spain : Procedings / by Caro MR, Salinas J, Buendia AJ. - [s. n. : s. l., 2009]. - p 38. - 1 bib ref Europen meeting on animal chlamydioses and zoonotic aspects (1st : Murcia, Spain : June 14-16, 2009) Comparative genomic analysis of a wild-type strain of the ovine pathogen Chlamydophila abortus (strain AB7) and its nitrosoguanidine-induced, temperature-sensitive, viruleneeattenuated live vaccine derivative (strain 1B) identified point mutations unique to the mutant (Burall et al., submitted). Based on these results, mutations were further characterized to confirm the predieted acquisition or loss of restriction sites in the live vaccine genomic DNA. Of the 10 investigated sites which contained confirmed point mutations (CAB153, CAB175, CAB220, CAB281, CAB283, CAB308, CAB469, CAB622, CAB636, CAB648 referred in the S26/3 complete genome), three sites corresponding to the loss of a restriction site in the vaccine strain were retained for further studies. PCR-restriction fragment length polymorphism (PCR-RFLP) analysis based on restriction enzyme cleavage at these three genomic sites was applied to a large number of C. abortus reference strains and field strains. Our results show that the three investigated mutations are specific to the vaccine, and as such provide a novel, easy-to-use method for differentiating between the vaccine strain, pathogenic strains and non-vaccine field isolates. Direct examination of clinical samples demonstrated that these markers are suitable for direct typing. ID nr. 4287 Pag. 199 di 300 31/08/2011 Vicari° N, Mandola ML, Barcucci E, Rizzo F, Bellotti° M, Magnino° S Detection of Chlamydiaceae in tissues and swabs from wild birds sampled foi avian influenza surveillance in 2008-2009 in Piedmont, Italy 1st europena meeting on animal chlamydioses and zoonotic aspects EMAC : June 14-16, 2009 Murcia, Spain : Procedings / by Caro MR, Salinas J, Buendia AJ. - [s. n. : s. l., 2009]. - p 41. - 6 bib ref Europen meeting on animal chlamydioses and zoonotic aspects (1st : Murcia, Spain : June 14-16, 2009) First author Vicari, Nadia BACKGROUND: Chlamydophila psittaci, the agent of avian chlamydiosis in companior birds and poultry, has been allow detected in wild birds (1). We report here the preliminary results of an investigation for chlamydiae carried out in wild birds that had been sample in the context of avian influenza surveillance. MATERIALS AND METHODS: One hundred and twenty specimens collected in 2008-2009 from wild birds (mallards, swans, raptors and pigeons) sampled for the surveillance for avian influenza in Piedmont region, northern Italy, were examined for the presence of chlamydiae by a real-time PCR assay targeting the 23S rDNA of Chlamydiaceae, as a screening test (2). Samples that yielded a positive reaction were subsequently tested with a real-time PCR targeting the MOMP gene (ompA), employing a specific probe for C. psittaci (3). Two conventional PCR assays targeting the 16S rDNA and the omp2 were also performed (4, 5). The amplicons obtained were digested in a RFLP assay with Msel and with Alum, respectively, in order to identify the chlamydial species involved. RESULTS: Nineteen samples (15.8 %) tested positive for Chlamydiaceae in the real-time PCR targeting the 23S rDNA. No amplification was detected with the ompA real-time PCR specific for C. psittaci. The RFLP-PCR assays gave conflicting results: the one targeting the 16S rDNA yielded a restriction pattern which could be referred to C. abortus, while the other targeting omp2 showed a pattern that did not match any recognised chlamydial species. A further real-time PCR specific for C. abortus ompA was performed on the 19 samples but did not confirm the presence of C. abortus. CONCLUSIONS: The percentage of positivity detected in this survey is similar to the one reported in a recent research carried out in France, where 10.6% of samples were found positive for chlamydiae (6). Sequencing is under way in order to further characterize the involved chlamydiae. ID nr. 4288 Vicari° N, Laroucau K, Vorimore F, Barbieri° I, Sachse K, Hotzel H, Labalestra I, Magnino° S Molecular analysis of four chlamydial isolates from the intestine and cloacal swabs of feral pigeons sampled in Milan and Ferrara, Italy 1st europena meeting on animal chlamydioses and zoonotic aspects EMAC : June 14-16, 2009 Murcia, Spain : Procedings / by Caro MR, Salinas J, Buendia AJ. - [s. n. : s. l., 2009]. - p 27. - 8 bib ref Europen meeting on animal chlamydioses and zoonotic aspects (1st : Murcia, Spain : June 14-16, 2009) First author Vicari, Nadia BACKGROUND: Chlamydophila psittaci, the agent of avian chlamydiosis, is widely distributed in feral pigeon populations of several European countries (1). We report here the preliminary data on the molecular typing of four chlamydial isolates from feral pigeons sampled in Milan and Ferrara, northern Italy. MATERIALS AND METHODS: Chlamydial isolates were grown in cell culture from cloacal swabs (n=2) and from the intestine (n=2) of feral pigeons of Milan and Ferrara, respectively. DNA from these isolates was analyzed using Chlamydiaceae-specific real-time PCR (2), ArrayTube DNA micro array (3) and species-specific molecular detection tools, i.e. real-time PCR (4) and MLVA (5). Furthermore, characterization based on the ompA (6) and 16S rDNA (7) complete sequences was performed. Phylogenetic trees were constructed with BioNumerics software (Applied Maths, Sint-Martens-Latem, Belgium) by comparing the obtained sequences with a database that included representative sequences of all recognized Chaamydaa and Chlamydophila species. RESULTS: Unexpectedly, DNA extracted from all four isolates tested positive only in Chlamydiaceae-specific real-time PCR, but no signal was detected with any of the C. psittaci specific tools (real-time PCR, MI-VA). ArrayTube DNA micro array testing indicated the presence of a new, so far unclassified member of the genus Chlamydophila. Another real-time PCR specific for novel Chlamydophila organisms recently isolated from poultry in France (8) was applied to the samples, but no signal was detected, Pag. 200 di 300 31/08/2011 thus suggesting either high intraspecies diversity or the presence of another different novel chlamydial organism. Sequencing of the ompA and 16S rDNA genes of these samples confirmed this hypothesis. CONCLUSIONS: Molecular analysis performed on the four isolates shows that they do not cluster with known chlamydial species. Further molecular analyses are under way for a more complete characterization of the isolates. ID nr. 4289 Scala A, Mula P, Giobbe M, Ferraretto Z, Tittarelli° C, Lavazza° A A preliminary seroepidemiological survey of encephalitozoon cuniculi in rabbit farms Sardinia (Italy) Parassitologia. - Vol. 50 supp. 1 ( 2008). - p 158 Congresso Nazionale della Societa' Italiana di Parassitologia (25. : Pisa : 18-21 giugno 2008) Project PRC2005010 - Importance of blood sampling as investigation tool for the evaluation of health condition and welfare of farming rabbits - Lavazza Dr. Antonio - Capofila - MINSAN - 2005 53000,00 EUR - 02/10/2006 0.00.00 - 02/05/2009 0.00.00 - 1 - G1 - Reparto di Virologia e Sierologia Specializzata - Lavazza Dr. Antonio - I 2 - IZSUM - Perugini Dr. Gianni - E 3 - S.A.T.A. Servizio di Assistenza Tecnica Allevamenti - Sezione Conigli - Regione Lombardia Brivio Dr. Ruggero - E ID nr. 4293 Carra° E, Bassi° S, Sarti M, Fontana MR, D'Incau° M, Lambertini A, Pongolini° A Molecular investigation of a human Salmonella enterica subsp. enterica serovar Manhattan outbreak, comparison between outbreak and collection isolates V Workshop nazionale di epidemiologia veterinaria "L'epidemiologia veterinaria di fronte ai cambiamenti naturali e sociali che influenzano la salute" : Torino, 10-11 Dicembre 2009 / a cura di Gaia Scavia ... [et al.]. Roma : Istituto Superiore di Sanità, c2009. - (ISTISAN congressi ; 09/C13) p 32-33 Workshop nazionale di epidemiologia veterinaria (5. : Torino : 10-11 Dicembre 2009) First author Carra, Elena Few human outbreaks caused by Salmonella enterica subsp. enterica serovar Manhattan have been described and investigated by molecular tools. The aims of this study were:1) the molecular-epidemiological investigation of a human Salmonella enterica subsp. enterica serovar Manhattan outbreak occurred in Modena in the period May-July 2009; 2) the genetic comparison of 15 isolates from the outbreak with 21 strains of Salmonella Manhattan from the IZSLER’s collection isolated from different sources, over the period 2001 -2009. The genetic analysis performed by pulsed field gel elecrophoresis (PFGE) revealed the same genotype (type A) for all the outbreak isolates. Among 21 isolates from the IZSLER’s collection, 6 genotypes were identified, and type A resulted the most frequent. ID nr. 4295 Boniotti° MB, Donati° C, Zanardi° G, Lollai S, Zanoni° M, Tagliabue° S, Avisani° D, Pacciarini° M Evaluation of MIRU-VNTR Stability Fifth international M. bovis conference / [s.l. : s.n, 2009]. - p 116 ( International M. bovis conference (5th : Wellington, New Zeland : 25-28 August 2009) First author Boniotti, Beatrice Spoligotyping and MIRU-VNTR (mycobacterial interspersed repetitive unit-variable-number tandem repeat) typing has become a major method for genotyping of M. bovis isolates. Epidemiological investigations Pag. 201 di 300 31/08/2011 confirmed by the genetic profiles data can elucidate the sources of infection of new TB outbreaks. The genetic structure of MIRU-VNTR makes them subject to gain or loss repeats and confers them a genetic discrimination capacity. A source of variation can also be the reliability of locus amplification. However, in order to trace transmission chains over time it is necessary to use sufficiently stable genetic markers throughout the research period. Comparing genetic profiles you can sometimes find SLVs (Single locus Variations) or DLVs (Double locus Variations) but the significance of a single mutation has not yet been established nor if it's sufficient to say the isolates are different. In this study, we evaluated the stability of 19 MIRU-VNTR loti using a total of 79 isolates belonging to 2 outbreaks groups. The first group included 47 isolates coming from a small area of Sardinia, an Italian island of Mediterranean Sea. The isolates were collected over a period of 7 years from 36 cattle herds and from wild boars living in the sure area. A11 the isolates showed the sure Spoligotype and most of them showed the sure MIRU-VNTR profile. We found 5 SLVs in loti ETR B, ETR C, MIRU 16, MIRU 27 and 2 involving marker 3636, considered a hyper variable locus. None of the isolates showed a DLV. The second group includes 25 isolates mostly coming from the North of Italy. All the isolates showed a Spoligotype consistent with M.caprae and the sure MIRU-VNTR profile except for an SLV involving MIRU 23 and for an unusual VNTR 3232 variability. In fact, PCR amplification of VNTR 3232 locus worked very badly in this group with results that were difficult to interpret. Moreover, this group was compared with 6 unrelated isolates with a very similar genetic profile. These isolates always showed DLVs. Our results suggest that when in a locus the number of repeats is high its amplification is unreliable and it's necessary the exclusion of this locus during epidemiology investigations. In conclusion, most of the markers considered in this study showed high stability and the presence of a single locus variation was not significant to exclude correlation among the isolates. ID nr. 4296 Zanardi° G, Zanoni° M, Gaffuri° A, Boniotti° B, Pacciarini° ML, Alborali° L Tubereulosis transmission by Mycobacterium Bovis in goats Fifth international M. bovis conference / [s.l. : s.n, 2009]. - p 134 ( International M. bovis conference (5th : Wellington, New Zeland : 25-28 August 2009) First author Zanardi, Giorgio We describe a tuberculosis outbreak caused by Mycobacterium bovis in a mixed herd of cattle and goats. This report examines the transmission of the virus from cattle to goats, its maintenance in the latter and its reoccurrence in cattle of new introduction. In order to detect the infection, cattle and goats were tested by single and/or comparative skin test, gamma interferon test and then investigated at the slaughterhouse for gross lesions. Mycobacterial isolates were identified by biochemical and molecular tests. Spoligotyping and MIRUVNTR analysis were used to genotype M. bovis isolates. In 2006, tuberculosis was detected at the slaughterhouse in a nine-month fattening steer with lesions in the tracheobronchial and mediastinal lymph nodes. The following epidemiological inquiry on the herd of origin clinically suspected one goat in 35 of having tuberculosis (anorexia, weight loss, chronic cough). At the slaughterhouse visible lesions were found in the retropharyngeal, tracheobronchial, mediastinal and mesenterie lymph nodes, the liver and the lungs. The intradermal comparative tuberculin test carried out on the remaming 34 goats showed 20 positive heads using the standard bovine interpretation. At necroscopy, 15 goats were found positive for gross lesions. Gamma interferon test detected 19 positive heads. Bacteriological culture and PCR from clinical samples confirmed the presence of M. bovis in both goats and cattle. Spoligotyping and MIRU-VNTR identified the same genomic profile found two years before in a 10-year-old dairy cow in the same herd. Stamping out was practiced on three cattle present at that time, but 18 goats living alongside were not skin tested. In conclusion, the goats maintained and transmitted the infection to the fattening steer of new introduction into the same farm. The identical genomic profile of M. bovis demonstrated the transmission of tuberculosis from cattle to goats to cattle. Tuberculin skin test remains the in vivo diagnostic method of reference; the concordance of the results with gamma interferon test was very high. According to similar results reported by Crawshaw T. et al. (The Veterinary Record, July 26, 2008) it is also appropriate to test goats reared in promiscuity with cattle in order to detect the disease, control TB diffusion and avoid the risk of zoonotic M. bovis infection. Pag. 202 di 300 31/08/2011 ID nr. 4297 Gaffuri° A, Boniotti° B, Sacchi° C, Bertoletti° I, Zanoni° MG, Pacciarini M Tuberculosis control program in wildlife in Italy: strategies and results Fifth international M. bovis conference / [s.l. : s.n, 2009]. - p 126 ( International M. bovis conference (5th : Wellington, New Zeland : 25-28 August 2009) First author Gaffuri, Alessandra The presence of the tuberculosis infection in wildlife is a common concern in many countries; monitoring control programs have been implemented worldwide to study its epidemiology in free-living animals and to prevent inter-species transmission. Our study describes the tuberculosis control program, that we carried out in Northern Italy and its results. In this region most of herds have been officially TB free for the last 5 years but the high density of wild ungulates led us to assess the eventual presence of a TB wildlife reservoir. Since the end of 90's we have controlled wild boar population by inspection of head lymph nodes followed by cultural and biological molecular tests on the samples showing lesions consistent with Tb infection. In the last two years we have also monitored foxes, roe deer and red deer, other wild species susceptible of TB that share the sure habitat with wild boar. The samples were collected by the hunters or official veterinaries during the hunting season. In the last ten years we examined 4200 wild boar, 152 roe deer, 208 red deer and 53 fox lymph nodes. We found macroscopic lesions consistent with T13 in 333 wild boar lymph nodes; 170 sample were identified as M. microti and 10 as M. bovis by PCR (IS6110 and RPFLP Gyr13) but we isolated only 20 M. microti and 4 M. bovis strains. The isolated M. bovis strains have different genetic profiles to those found in recent T13 outbreaks occurring in cattle in the same area. We didn't find any macroscopic lesions in the lymph nodes of the other species tested, but 1 roe deer were identified by PCR as M. microti, 5 red deer were identified by PCR as M. bovis ( 3) and M. microti (2) and 2 fox, were identified by PCR as M. bovis. As we were unable to isolate those M. bovis strains, we could not perform molecular typing to assess any correlation with outbreaks in livestock. The results of the control program show that M. bovis is seldom detected in wildlife and does not represent a risk for domestic animals, while M. microti is often present in tuberculosis-like lesions. ID nr. 4298 Bortolotti L, Sabatini AG, Mutinelli F, Astuti M, Lavazza° A, Piro° R, Tesoriero D, Medrzycki P, Sgolastras F, Porrini C Spring honey bee losses in Italy 10th International Symposium ICP-BR Bee Protection Group, Hazards of Pesticides to Bees : Bucharest, Romania, 8-10 October 2008 : Abstract / [s.l. : s.n., 2008]. - p 4148-152 - 7 bib ref International Symposium ICP-BR Bee Protection Group (10th : Bucharest, Romania : 8-10 October 2008) First author Lavazza, Antonio Backrgound: During last years several cases of bee losses have been reported during the period of corn sowing in different European countries. In Italy an institutional system for bee losses survey does not exist and therefore some Italian regions decided to organise an official network to collect data and analyse dead bee samples. Results: Collected data indicate that the higher number of bee losses events occurred in intensively cultivated flat areas, located in the North of Italy, mainly during or after corn sowing. The chemical analyses of dead bees revealed the presence of three neonicotinoid residues: imidacloprid was found in 25.7% of the sample, thiamethoxam in 2.8%, clothianidin in 25.7%, both imidacloprid and thiamethoxam in 4.7%. The visual examination and the virological analyses excluded pathological causes. Conclusion: The spatial and temporal correlation between hive damages and corn sowing and the presence of residues of active ingredients used for seed dressing (imidacloprid, thiamethoxam and clothianidin) in almost half of the samples confirms the connection between spring mortality and the sowing of corn seed dressed with neonicotinoids. ID nr. 4299 Pag. 203 di 300 31/08/2011 Bano L, Drigo I, Bonci M, Ferro T, Bacchin C, Guolo A, Marcon B, Merialdi° G, Agnoletti F Clostridium difficile survey in Italian piggeries using different diagnostic methods 6th Clostpath International Conference : Clostridia the impact of genomics on disease control : 12-23 October 2009 Roma / [s.l. : s.n., 2009]. - p 159 Clostpath International Conference (6th : Roma : 12-23 October 2009) In order to investigate the role of Clostridium dfficile (CD) in swine enteritis outbreaks, 79 faecal samples, 30 intestinal contents and 12 rectal swabs avere collected in 31 different farms from pigs with an history of dianhoea. Samples were stratified by growing phase (suckling, post-weaning, growing, fattening). Each sample was cultured in a selective medium for CD and the isolates were Mentified by a commercial biochemical panel kit and by means of a species-specific PCR. Each isolate was tested by multiplex PCR to reveal the presente of tcdA and tcdB genes éncoding for toxin A and toxin B respectively. The samples were screened for CD toxins A and B by usìng a commercial ELISA. 26 intestinal contents and 73 faecal samples were tested by Real-Time PCR to enumerate CD Colony Forming Units (CFU) per g of sample. CD was recovered from 27 samples and the highest prevalente was detected in suckling pigs (43.5%). Thirteen strains tested positive for both tcdA and tcdB genes, one strain was tcdA-Itcd6-, whereas 13 resulted tcdA-ItcdB+, 28 samples resulted positive by Real-Time PCR and the highest CD amounts (10 -10 UFC) avere detected in samples that tested positive for toxins 27 samples positíve for CD. This study highlights the involvement of CD in outbreaks of enteric disease in swine in Italian farms, irrespective of age, even though the highest prevalente was recorded in suckling pigs. Furthermore the enumeration of this enteric pathogen by Real-Time PCR coupled with ELISA toxin test provides a rapid and accurate tool far the diagnosis of clostridiosis caused by CD. ID nr. 4300 Rossi L, Lavazza° A, Lovari S, Dematteis A Encounters between livestock and the Himalayan tahr (Hemitragus jemahicus) in the Sagarmatha National Park, Nepal V Granada from 10th to 14th November 2009 : Granada from 10th to 14th November 2009 / [s.l. : s.n., 2009]. - p 310 World conference on mountain ungulates (5 : Granada, Spain : 10th to 14th November 2009) The Himalayan tahr (Hemitragus jemlahicus) is the most representative angulated living m the Sagarmatha National Park (SNP), Nepal. This wild caprin is the object of a renowned long-term ethological study, in the fame of the CNR-leaded "Ev-K2 Project". Since the beginning of the 21th century, the formerly viable tahr population of the SNP was shown to be declining. A likely explanation was the synchronous return of an efficient predator, the Snow leopard (Uncia), however other causes were explored. The present short-term study aimed to investigate: i) how frequent and close are spatial interactions between W= and local livestock (cattle, yak and hybrids); ii) if these interactions may actually remit in the cross transmission of pathogens known to limit the reproductive success of affected hosts. Observations were carried out in February-April 2007, during 52 fieldwork days. Most observations (that we organized in 10 morning and 10 afternoon session, 20 different days overall) focused on a single tahr herd in. the proximity of Namche Bazaar, at altitudes between 3.000 and 3.500 m. Other observations (a "convenience" sample) dealt with several groups of tahr living in these main valleys of SNP, up to 4.300 m. Results confirmed the critical demographic situation of tahm in the protected area, and demonstrated that local livestock and tahr are in obvious spatial contact during late winter-early spring. The alternate use of most available pastures and, in parallel, the frequent occurrence of short-distance encounters (maggiore 20 m, with minima of 2 m) were documented. In addition, serum samples were obtained from 20 adult tabr (3-11 years old), 35 1ocal livestock, and 30 goats and sheep raised at lower altitudes and moved to the study area just a few weeks before slaughtering. Exposure to ten major infections of nrminants was investigateti: Brucellosis, Chlamydiosis, Toxoplasmosis, Q Fever, Foot & Mouth Disease, Neosporosis, Pestivirosis, BHV 1, BRSV, BVDVBDV, BPIV 3. Remarkably, 35% of tahr, 77 % of livestock and 31 % of goat sera tested positive to BHV 1, a pathogen whose main transmission route is short= distance aerosol. Notwithstanding, results of the serommoy do not support the hypothesis that livestock-derived infectious diseases mducmg hypo-fertihty, abortion or neonatal juvenile mortality are major causes of the low reproductive success of tahr in the SNP. Pag. 204 di 300 31/08/2011 ID nr. 4301 Palermo P, Robetto S, Gaffuri° A,Gavaudan S, Ferrantelli, Pasolli C, Petrella A, Pintore A, Di Ventura M, Battisti A, Di Prisco F, Cantucci U, Orusa R Wild animal diseases: the Italian surveillance net VI International Symposium on Wild Fauna : May 21-24, 2009 Paris, France : Atti / [s.l. : s.n., 2009]. - p 173174 International Symposium on Wild Fauna (6 : Paris, France : May 21-24, 2009) First author Gaffuri, Alessandra ID nr. 4302 Spaggiari° B, Merialdi° G, Cuccurese A, Bonilauri° P, Aldrovandi A, Massirio I, Leonelli° R, Dottori° M Survey of pathogen diffusion in a Roe Deer (Capreolus capreolus) population affected by diarrhoea and increased mortality in Northern Italy VI International Symposium on Wild Fauna : May 21-24, 2009 Paris, France : Atti / [s.l. : s.n., 2009]. - p 153154. - 5 bib ref International Symposium on Wild Fauna (6 : Paris, France : May 21-24, 2009) First author Spaggiari, Brunella A survey was conducted between 2007 and 2008 on free-living roe deers (Capreolus capreolus) in the province of Reggio Emilia (Northem Italy) following a reported increased mortality in the population during summer 2007. Overall 267 animals were recovered during selective culling programs and submitted to gross pathological, bacteriological, parasitological, virological and molecular biology investigations. Enterocolitis was found to be the preeminent cause contributing to roe deer wasting and death. Yersinia spp., E. coli EPEC and endoparasites were diagnosed and signilicantly corretated to diarrhoea and mortality. High roe deer densities rccorded by drive census on the province territory in 2007 and unfavourable environmental conditions are likely to have concurred to the lethal outcome for a considerable number of animals. ID nr. 4303 Maioli° G, Bonilauri° P, Merialdi° G, Spaggiari° B, Casini° C, Dottori° M Preliminary data on host preference, mean intensity of host infestation and geographical distribution of tick infesting wild hunted animals in two Italian regions VI International Symposium on Wild Fauna : May 21-24, 2009 Paris, France : atti / [s.l. : s.n., 2009]. - p 135136. - 4 bib ref International Symposium on Wild Fauna (6 : Paris, France : May 21-24, 2009) Project PRC2008005 - Mapping Arthropod Vectors: on field evaluation of different monitoring methods Tamba Dr. Marco - Capofila - MINSAN - 2008 - 187000,00 EUR - 01/10/2009 0.00.00 30/09/2012 0.00.00 - 1 - N0 - CEREV - Tamba Dr. Marco - I 2 - N8 - Sezione diagnostica provinciale di Reggio Emilia - Luppi dr. Andrea - I 3 - M8 - Sezione diagnostica provinciale di Pavia - Fabbi Dr. Massimo - I 4 - G1 - Reparto di Virologia e Sierologia Specializzata - Lelli dr. Davide - I 5 - Centro Agricoltura Ambiente "G. NIcoli" - Bellini dr. Romeo - E 6 - Istituto Zoop. della Sicilia - Torina dr.ssa Alessandra - E First author Maioli, Giulia The aim of this study was to fumish more data ori the Ixoxid fauna of wildlife coilected in Emilia Romagna and. Lombardia, two regions located in the northern part of Italy, and to better understand ticks ecology. Ticks were Pag. 205 di 300 31/08/2011 sampled from hunter-killed animal and identified. A total of 1361 ticks were collected from 206 animals. The most prevalent species was Ixodes ricinus followed by Dermacentor marginatus. Mean tick intensity was lower in roe deer (Capreolus capreolus) than in other species and there was no significant variation in tick abundance among months. Ticks were found in ali. sampling months including December and January. Further investigations are in progress to detect tick-borne pathogens circulating in wildlife environment. ID nr. 4304 Pessina A, Bonomi A, Coccè V, Bernardo ME, Cometa AM, Ferrari° M, Sisto F, Cavicchini L, Locatelli F Assessment of human herpesvirus-6 infection in mesenchymal stromal cells ex vivo expanded for clinical use Transpl Infect Dis. - Vol. 11 no 6 ( 2009). - p 491-496. - 18 bib ref Impact factor: 2,516 Project relopianoregionalesa - Regional Blood Plan 2006 “Adult staminal cells transplantation for cellular replacement-therapy purposes” - Prof.Franco Locatelli - UO - REGIONE - 2006 - 1230000,00 EUR - 10/08/2006 0.00.00 - 09/08/2008 0.00.00 - 8 - L1 - Reparto Substrati Cellulari - Ferrari Dr.ssa Maura - I Infection or reactivation of human herpesvirus (HHV)-6 represents a potentially serious complication (often involving the central nervous system) in patients receiving either solid organ or hematopoietic stem cell transplantation. The objective of this study was to assess the risk of HHV-6 infection/reactivation in mesenchymal stromal cells (MSCs). MSCs are multipotent cells displaying immunomodulatory properties that have been already successfully used in the clinical setting to enhance hematopoietic stem cell engraftment and to treat steroid-refractory acute graft-versus-host disease. We analyzed 20 samples of ex vivo expanded MSCs, at different passages of culture, isolated both from bone marrow and from umbilical cord blood. Through Western blotting and immunocytochemistry techniques, we investigated the presence of the HHV-6 receptor (CD46) on cell surface, whereas the presence of HHV-6 DNA was evaluated by nested polymerase chain reaction assay. All of the MSC samples tested were positive for the virus receptor (CD46), suggesting their potential susceptibility to HHV-6. However, none of the MSC samples derived from cultures, performed in the perspective of clinical use, was found to harbor HHV-6. This preliminary observation on a consistent number of MSC samples, some of them tested at late in vitro passages, indicates a good safety profile of the product in terms of HHV-6 contamination. Nevertheless, it remains important to set up in vitro experimental models to study MSCs' susceptibility to HHV-6 (and HHV-7) infection, to verify their capacity to integrate the virus into cellular DNA, and to investigate which experimental conditions are able to induce virus reactivation. ID nr. 4305 Pozzato N, Arrigoni° N, Bonizzato S, Chiavegato M, Tondo A, Capello K Field and interlaboratory evaluation of four commercial ELISA kits for M. avium subsp. paratuberculosis antibody detection in bovine serum Proocedings of the 10th International Colloqium on Paratuberculosis : August 9-14 2009 Minneapolis, Minnesota / [Minneapolis, Minnesota : s.l., 2009]. - p 54 International Colloquium on Paratuberculosis (10th : Minneapolis, Minnesota : August 9-14, 2009) Project PRC2007102 - Diagnostic performances of commercial ELISA kits for the detection of Mycobacterium avium subsp. paratuberculosis antibodies in infected and negative herds in Northeastern Italy - Pozzato Dr. Nicola - UO - MINSAN - 2007 - 0,00 EUR - 01/05/2008 0.00.00 30/04/2009 0.00.00 - 1 - N6 - Sezione diagnostica provinciale di Piacenza - Arrigoni Dr.ssa Norma -I Detection of antibodies by ELISA is an important tool for Johne’s disease control. The goal ofthis work was to evaluate four commercial ELISA tests. We determined diagnostic sensitivity and specificity on field samples and the robustness of the kits in an interlaboratory trial. To assess diagnostic sensitivity and specificity, 92 Pag. 206 di 300 31/08/2011 sera from fecal culture positive animals at different level of excretion and 32 from negative herds were analysed in one laboratory. All the kits demonstrated a specificity of 100.0%. Merging inconclusive and positive results, test sensitivity was 71.7% for kit A and B and 67.4 for kit C and D. Among infected animals, ELISA sensitivity did not varied significantly with Map excretion levels with all the kit used. For the interlaboratory trial, 30 coded samples composed by eight replicates of one negative sample and two replicates of 11 positive samples were selected and delivered with the kits to 10 laboratories throughout Italy. All the participants tested each sample in duplicates. Decoded results were analysed for reproducibility within and among laboratories and quantitative results were transformed into S/P values to compare analytical results. Kit A gave 100% of the expected results and Kit B gave almost the same outcome: just one laboratory obtained one inconclusive and one negative result in one replicate. Kit C gave the expected results for 9/11 positive samples and Kit D for 5/11 positive samples. Variations among replicates and laboratories were obtained with the remaining positive samples for these two kits. Regarding the replicates on negative sample, 5 incorrect results distributed in three laboratories for kit C and one doubtful replicate in one laboratory for kit D were detected. According to these results, two (A and B) of the four ELISA kits evaluated showed good performances and reproducibility within and among laboratories. ID nr. 4306 Arrigoni° N, Cammi° G, Belletti° GL Persistence of Mycobacterium avium subsp. paratuberculosis (Map) in field dried hay fertilized with bovine slurry from Map infected herds Proocedings of the 10th International Colloqium on Paratuberculosis : August 9-14 2009 Minneapolis, Minnesota / [Minneapolis, Minnesota : s.n., 2009]. - p 172-175. - 7 bib ref International Colloquium on Paratuberculosis (10th : Minneapolis, Minnesota : August 9-14, 2009) Project PRC2005003 - Use of bulk-milk for bovine paratuberculosis surveillance - Arrigoni Dr.ssa Norma Solo - MINSAN - 2005 - 30000,00 EUR - 02/05/2006 0.00.00 - 01/05/2008 0.00.00 - 1 - N6 Piacenza - Arrigoni Dr.ssa Norma - I 2 - N0 - CEREV - Tamba Dr. Marco - I First author Arrigoni, Norma Objective: Use of Map contaminated slurry or manure to fertilize crop fields is generally considered a risk factor for the Map transmission, although data on survival of Map in crops are sparse. Therefore, the persistence of Map on crops fertilized during the autumn-winter period with slurry or manure coming from Map infected herds was studied. Methods: Ten Map infected herds with different prevalence levels of infection were selected. Culture and PCR tests were performed on environmental samples collected from the infected farms to assess the level of Map contamination. The same tests were performed on crop samples collected at three different time-points: (1) on fresh hay before harvesting; (2) on hay after field drying; (3) on dried hay at the beginning of its use for animal feeding Results: The environmental samples had massive presence of Map in the manure and slurry used to fertilize the fields. The tests performed on the fresh hay samples, collected before harvesting, showed a single positive result by PCR (10%) and were always negative by culture. The hay samples collected after field drying and at the beginning of their use for animal feeding were always negative in both culture and PCR. Conclusion: These results suggested that under the described conditions, the contamination risk for field dried hay, although possible, is of limited importance for the spreading of infection. On the other hand this must not be underestimated in uninfected herds purchasing forage. ID nr. 4307 Ricchi° M, Taddei° R, Barbieri° I, Belletti° GL, Pacciarini° ML, Arrigoni° N Typing of Mycobacterium avium subsp. paratuberculosis (MAP) strains isolated from different Italian regions by four Variable-Number Tandem Repeat (VNTR) methods alone or in association Proocedings of the 10th International Colloqium on Paratuberculosis : August 9-14 2009 Minneapolis, Minnesota / [Minneapolis, Minnesota : s.l., 2009]. - p 60-63. - 10 bib ref International Colloquium on Paratuberculosis (10th : Minneapolis, Minnesota : August 9-14, 2009) Pag. 207 di 300 31/08/2011 Project PRC2008108 - Set-up and evaluation of new epitopes for the detection of Mycobacterium avium subsp paratuberculosis both “in vivo” and “in vitro” - Cagiola Dr.ssa Monica - UO - MINSAN - 2008 - 15000,00 EUR - 01/06/2009 0.00.00 - 31/05/2011 0.00.00 - 1 - N6 - Sezione diagnostica provinciale di Piacenza - Ricchi Dr. Matteo - I First author Ricchi, Matteo The control of Paratuberculosis requires the knowledge of the causative agent, Mycobacterium avium subsp. paratuberculosis (MAP), both in terms of epidemiology and biodiversity within different strains. One of the most widely used method for MAP typing is IS900 sequence restriction fragment length polymorphism. However it is applicable only on cultivable strains, is technically demanding and has limited discriminatory power. More recently, tandem-repeat PCR based methods overcame these problems and, at present, are considered the emerging techniques for MAP typing. The aim of this study was to evaluate the discriminatory power of four PCR typing methods. We selected ten different strains from various Italian regions. We used MIRU (3 loci), VNTR-MIRU (7 loci), MLSSR (11 loci) andMLVA (5 loci) analysis to differentiate the bacterial DNA. Both MIRU and VNTR-MIRU gave 2 clusters (DI 0.556), while MLVA and MLSSR gave respectively 5 (DI 0.667) and 9 (DI 0.978) clusters. The combinations gave different results: MIRU+MLVA and VNTRMIRU+MLVA gave 5 clusters (DI 0.806), MLSSR+MIRU or MLSSR+VNTR-MIRU did not increase the discriminatory results of MLSSR alone (9 clusters); MLSSR+MLVA gave 10 clusters (maximum theoretic DI value i.e. 1.00). Although a limited number of strains was used in this study, our data suggest that applying a single analysis, MLSSR provides the highest DI. Moreover, MLSSR coupled with MLVA showed the best discriminatory power. Finally, the combination between MIRU or VNTR-MIRU and MLVA enhanced the indexes as compared to single analysis. ID nr. 4308 Ricchi° M, Manini° F, Cammi° G, Donaghy J, Arrigoni° n Comparison of four different PCR methods for the detection of Mycobacterium avium subsp. paratuberculosis in milk Proocedings of the 10th International Colloqium on Paratuberculosis : August 9-14 2009 Minneapolis, Minnesota / [Minneapolis, Minnesota : s.l., 2009]. - p 56-59. - 6 bib ref International Colloquium on Paratuberculosis (10th : Minneapolis, Minnesota : August 9-14, 2009) Project PRC2005003 - Use of bulk-milk for bovine paratuberculosis surveillance - Arrigoni Dr.ssa Norma Solo - MINSAN - 2005 - 30000,00 EUR - 02/05/2006 0.00.00 - 01/05/2008 0.00.00 - 1 - N6 Piacenza - Arrigoni Dr.ssa Norma - I 2 - N0 - CEREV - Tamba Dr. Marco - I First author Ricchi, Matteo Emerging evidence suggests a role of Mycobacterium avium subs. paratuberculosis (MAP) in the development of human pathologies like Crohn’s disease and type I diabetes. For this reason, the need for rapid and robust tools to detect the presence of MAP in food is increasing. Polymerase Chain Reaction (PCR) techniques are able to give rapid and specific results, but their sensitivity is generally lower than traditional culture methods. The aim of this study was to compare four different PCR methods to detect MAP on cow bulk milk samples collected from presumably infected herds. MAP DNA was extracted by Adiapure kit (Adiagene, France). The PCR were: (a) IS900 Commercial end-point PCR (kit Adiavet, Adiagene, France); (b) IS900 Nested PCR; (c) IS900 TaqMan Real time PCR; (d) f57 housemade Sybr Green Real Time PCR. Both the commercial PCR (a) and the IS 900 Real Time PCR TaqMan (c) contained an internal amplification control in order to discriminate between negative or inhibited samples. Out of 37 milk samples tested we found only one positive sample (3%) using (a), (c) and (d) methods. The Nested PCR method (b) showed eight positive samples (22%). Although we used bulk milk samples coming from presumably infected herds, the prevalence of direct detection of MAP is low in all the “one round” PCR methods. As expected, the most sensitive method is Nested PCR, althoug it remains difficult to apply as regards to possibility of cross contaminations. Pag. 208 di 300 31/08/2011 ID nr. 4312 Candotti° P, Rota_Nodari° S Surgical and functional surgery in a lactating sow affected by vulva biting Suis. - Vol. 62 ( 2009). - p 40-43. - 5 bib ref First author Candotti, Paolo In a farrow to finish herd with 300 breeding sows, a granparent Large White sow had her vulva bitten by her piglets in the farrowing crate. The cannibalism induced anatomical changes consisting in a loss of most of the vulva's labias and a subsequent closure of the interlabial sulcus resulting in a reduction of the opening to about only 3 mm. The anatomical changes had functional consequences resulting in: an abnormal urinating behaviour, consisting in pollakiuria. In order to re-establish a welfare condition and to allow a natural farrowing, the animal underwent successfully a plastic surgery to enlarge the interlabial solcus. ID nr. 4313 Defilippo° F, Caimi M, Calzolari° M, Bonilauri° P, Parco V, Fedeli P, Barbieri° I, Maioli° G, Lelli° D, Lavazza° A, Fabbi° M, Dottori° M Arboviral surveillance program on mosquitoes from "parco lombardo della valle del Ticino" (Northern Italy) The 5th European Mosquito Control Association Workshop EMCA : Monday 9th March Friday 13th March 2009 Turin, Italy / [s.l. : s. n., 2009]. European Mosquito Control Association Workshop (5th : Turin, Italy : Monday 9th March Friday 13th March 2009) First author Defilippo, Francesco Recently, Italv was involved in two important outbreaks of mosquitoborne diseases; chikungunya and West Nile. In 2008 a preliminary surveillance program in Ticino River Park to check the presene of arboviruses in mosquitoes was conducted. From 11 July 2008 to 17 October 2008, a total of 15,732 specimen belonging mainly to species Aedes vexans (24%), Culex pipiens (22%) and Anopheles maculipennis (4%) were collected. Of this, 14,232 mosquitoes (114 pools) belonging to the species Ae. vexans, Cx. pipiens, An. maculipennis and Ochlerotatus caspius vere tested with PCR. One pool of An. maculipennis was positive for the presence of a Bunyavirus. The BLAST analysis shows the sequence of the amplified fragment to have a maximum homology (95%) with BATAI virus (GeneBank: AB257762). Virus isolation was attempted using celi culture (Vero, Bhk21, Rkl3, C6/C36) and embryonated eggs but no positive results were obtained. ID nr. 4314 Calzolari° M, Bonilauri° P, Defilippo° F, Maioli G, Bellini R, Veronesi R, Albieri A, Angelini P, Barbieri° I, Lelli° D, Lavazza° A, Tamba° M, Sambri V, Dottori° M West Nile Virus surveillance in mosquitoes in Emilia-Romagna (Italy) The 5th European Mosquito Control Association Workshop EMCA : Monday 9th March Friday -13th March 2009 Turin, Italy / [s.l. : s. n., 2009]. European Mosquito Control Association Workshop (5th : Turin, Italy : Monday 9th March Friday 13th March 2009) First author Calzolari, Mattia An the summer 2008 a large epidemic of West Nile Fever (WN) occurred in three different Regions of Northern Italy (Emilia-Romagna, Veneto, Lombardia), causing 32 diagnosed cases in horses and 4 in humans. An active entomologica surveillance plan was started by the Emilia-Romagna Surveillance Group on Vectorial Disease in 2007. In the 2008 season a total of 78 stations were aestivated by C02 baited traps in Bologna and Ferrara provinces, 40 stations historically operating for mosquito density monitoring and 38 Pag. 209 di 300 31/08/2011 stations specifically positioned after the first evidence of disease in equine. Mosquitoes were pooled according to date, location and species, grinded manually and tested with Flavivirus genus RT-PCR and with WNV Real Time PCR. In total 38791 mosquitoes were analyzed, most of them belonging to the species Culex pipiens, Ochlerotatus caspius, Aedes albopictus and Aedes vexans. Two pools of Cx. pipiens (one collected in Cona, Ferrara province, on September 23`h, and the other collected in Argelato, Bologna province, on September 3 0th) resulted positive in PCR for the presence of RNA belonging to the Flavivirus genus and also for the presence of WNV. Virus isolation was attempted starting from the two PCR positive pools by using different cells culture (Vero, Bhk21, Rk13, C6/C36) and by inoculation of SPF chicken embryonated eggs but no WNV grown was obtained. The sequence of the amplified fragments (part of NS5 gene) obtained from of the two positive pools were identical and BLAST analysis showed a highest similarity with two isolates from the same outbreak in Emilia-Romagna - one from magpie (Pica pica) (100% homology, FJ472945) and one from human (99% homology, FJ472946). For a more accurate molecular characterization of WNV the complete sequence of the viral genome was required and that was possible only with an appropriate amount of viral RNA. As the isolation of virus in PCR positive pooled mosquitoes failed the determination of the whole genome sequence of the virus was precluded. Nevertheless the partial sequences obtained supported the specificity WN-PCR detections and were sufficient to preliminarily classify "V strains as belonging to lineage I. Direct detection of WN from mosquito vector is a rare event and confirms the high viral activity in the survey area. The maximum likelihood estimation (MLE) per 1000 mosquitoes obtained by grouping weekly homogeneous samples together results 0.69 (CI 0.04-3.37) for the week of first positivity (22/09-28/09) and 1.82 (CI 0.11-8.82) for the week of the second one (29/09-04/10) . ID nr. 4315 Calzolari° M, Bonilauri° P, Bellini R, Maioli G, Defilippo F, Albieri A, Barbieri° I, Tamba° M, Martini E, Angelini° P, Dottori° M Evidence of circulation of Usutu virus in mosquitoes in Emilia-Romagna region (Italy) 5th International Congress of Vector Ecology : 11-16 October 2009 Delek - Antalya - Turkey : Proceedings / [s.l : s.n., 2009]. - p 169 International Congress of Vector Ecology (5. : Delek - Antalya - Turkey : 11-16 October 2009) First author Calzolari, Mattia Usutu virus (USUV) is a mosquito-borne Flavivirus of the Japanese eneephahtis group. Vertebrate hosts of this virus are birds and ite is pathogenic for certain passeriformes birds and raptors; little is known about the medical important of USUV; but no human cases were reported. The firs detection of USUV in Europe date back to 200lin Vienna, where the virus caused the death of hundreds of wild birds, subsequent viral isolations and serological survives pointed out the presence of USUV in different European country, including Italy. The vectors of USUV are ornithophilic mosquitoes, mainly of genus Culex. After the 2008 Italian outbreak of West Nile Virus (WNVI that involved Emilia-Romagna, Veneto and Lombardia regions, in 2009 an extensive entomological surveillance was set up, with the first aim to monitor the presence of WNV even though the presence of USUV and other flaviviruses was also checked. The survey area was part of the Pianura Padana, near the River Po, the most important Italian floodplain, characterized by an intensive agriculture and animal husbandry. Almost all floodplain areas present in the region were monitored. Sites were monitored on a weekly or be-monthly basis starting from May 2009; mosquitoes were trapped using modified CDC traps baited with C02 and gravid traps. Since the beginning of the monitoring up to September 9th 2009, about 150,000 mosquitoes were analyzed, most of them belonging to the species Culex pipiens, Aedes (Ochierotatus) caspius and Aedes vexans. The survey is still going on at the time the present abstract is being written. Mosquitoes were pooled according to date, location and species, with a maximum number of 200 individuals per pool, grinded manually and submitted to Trizol LS - RNA extraction. Pools were analyzed using 3 different PCR reactions: 1) traditional PCR for the detection of flavivirus (Scaramozzino et al. 2001); 2) traditional PCR for the detection of USUV (Weissenbóck et al. 2004); 3) Real Time PCR for the detection of WNV (Tang et al. 2006). At the end of the first week of September,17 out of 1,211 pools of mosquitoes result positive to the presene of USUV, all but one pool were composed of Cx. pipiens mosquitoes. Interestingly, one pool Ae. albopictus resulted positive to - USUV. A part of the USUV amplicons obtained by the Favivirus PCR (partial' NS5. gene) was sequenced. The sequence analysis confirms that. 1) the PCR amplicons` obtained were specie for USUV; 2) all the strains sequenced show the same sequence in NS5 gene; 3) the Pag. 210 di 300 31/08/2011 highest BLAST scores were obtained with Usutu virus. isolated in Budapest and Usutu virus strain Vienna 2001. It is also important to notice that 5 mosquito pools tested positive both for USUV and WNV. This evidence could be considered a proof of the contemporary circulation of WNV and USUV in the same territory. Further experimental investigation is needed to better characterize the contemporary circulation of WNV and USUV. Moreover; it would be interesting to establish whether the mosquitoes infected by USUV are less sensitive or refractory to infection with WNV, or single mosquitoes could be the vectors of both viruses at the same time. ID nr. 4317 Finazzi° G, Daminelli° P, Santilli L, Norton A, Gregorelli° M, Boni° P Listeria monocytogenes behaviour in gastronomy food: rice salad Ind Aliment (Pinerolo). - Vol. 49 n 503 ( 2010). - p 32-37. - 4 bib ref First author Finazzi, Guido The aim of this survey was to evaluate the behaviour of Listeria monocytogenes during shelf-life of rice salad. For this purpose food was contaminated with a suspension of different pathogen strains in order to obtain a concentration pair to 102-103 cfu/g, then packed and stored at four different temperatures: 5°, 10°, 15°, 20°C. The trial lasted 4 weeks, a period longer than the shelf-life established by the producer. The results show that Listeria monocytogenes is not a risk for the consumer because its concentration decreases during the shelflife period at all different storage conditions. ID nr. 4319 Zanola A, Aleo MF, Schena I, Lavazza° A, Grigolato P, Stacchiotti A Autophagy and apoptosis in NRK-52E renal cells exposed to cisplatin 1st Microscopy Conference : first Joint Meeting of Dreilandertagung Multinational Congress on Microscopy : Graz, Austria 30 August - 4 September 2009 / a cura di Maria Anna Pabst, Gunther Zellnig. - [Austria : s.n, 2009]. - v. 2: Life science. - p 81-82. - 5 bib ref Microscopy Conference (1st : Graz, Austria : 30 August - 4 September 2009) ID nr. 4320 Lavazza° A, Tittarelli° C, Cerioli° M, Alborali° GL, Cordioli° P ImmunoElectronMicroscopy (IEM) detection of viral agents in diarrheic pigs during the period 20022008 in Northern Italy 1st Microscopy Conference : first Joint Meeting of Dreilandertagung Multinational Congress on Microscopy : Graz, Austria 30 August - 4 September 2009 / a cura di Maria Anna Pabst, Gunther Zellnig. - [Austria : s.n, 2009]. - v. 2: Life science. - p 443-444. - 4 bib ref Microscopy Conference (1st : Graz, Austria : 30 August - 4 September 2009) First author Lavazza, Antonio ID nr. 4321 Lavazza° A, Cerioli° M, Tittarelli° C, Cordioli° P The use of convalescent sera in nsIEM for the detection of not suspected and/or new virla agents of veterinary relevance 1st Microscopy Conference : first Joint Meeting of Dreilandertagung Multinational Congress on Microscopy : Graz, Austria 30 August - 4 September 2009 / a cura di Maria Anna Pabst, Gunther Zellnig. - [Austria : s.n, 2009]. - v. 2: Life Sciences. - p 437-438. - 6 bib ref Microscopy Conference (1st : Graz, Austria : 30 August - 4 September 2009) Pag. 211 di 300 31/08/2011 First author Lavazza, Antonio ID nr. 4322 Bianchi° A, Caslini C, Mattiello S Time budget assessment in captive Roe Deer (Capreolus capreolus) as a potential tool for predicting release success VI International Symposium on Wild Fauna : May 21-24, 2009 Paris, France : Atti / [s.l. : s.n., 2009]. - 1 p. 5 bib ref International Symposium on Wild Fauna (6th : Paris, France : May 21-24, 2009) First author Bianchi, Alessandro This aim of the presene study is to analyze daily activity rhythms of captive roe deer and to detect possible sources of variation inducing behavioural modifications. Roe deer that had been artificially reared by humans in a wildlife rehabilitation centre (n = 3) tended to be less reactive than roe deer reared into the wild froin their dams and delivered to the rehabilitation centre when already adult (n = 3). Centre bred deer spent significantly less time moving and alert, thus having more time to dedicate to feeding. These behavioural differences might probably be used to discriminate between "imprinted" and "wild' animals in rehabilitation centres, especially when the animal's origin is unknown. This would be useful for supporting decisional processes as to the release into the wild of those individuals. ID nr. 4323 Ferris NP, Nordengrahn A, Hutchings GH, Reid SM, King DP, Ebert K, Paton DJ, Kristersson T, Brocchi° E, Grazioli° S, Merza M Development and laboratory validation of a lateral flow device for the detection of foot-and-mouth disease virus in clinical samples J Virol Methods. - Vol. 155 ( 2009). - p. 10-17. - 21 bib ref Impact factor: 2,077 Project 2003-SSP-3-513645 - New and emerging technologies: improved laboratory and on-site detection of oie list a viruses in animals and animal products (LAB-ON.SITE) - Belak Dr. Sandor - UO - CE 2004 - 1500000,00 EUR - 01/11/2004 0.00.00 - 31/07/2008 0.00.00 - 7 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I A lateral flow device (LFD) for the detection of all seven serotypes of foot-and-mouth disease virus (FMDV) was developed using a monoclonal antibody (Mab 1F10) shown to be pan-reactive to FMDV strains of each serotype by ELISA. The performance of the LFD was evaluated in the laboratory on suspensions of vesicular epithelia (304 positive and 1003 negative samples) from suspected cases of vesicular disease collected from 86 countries between 1965 and 2008 and negative samples collected from healthy animals. The diagnostic sensitivity of the LFD for FMDV was similar at 84% compared to 85% obtained by the reference method of antigen ELISA, and the diagnostic specificity of the LFD was approximately 99% compared to 99.9% for the ELISA. The device recognized FMDV strains of wide diversity of all seven serotypes but weaker reactions were often evident with those of type SAT 2, several viruses of which were not detected. Reactions with the viruses of swine vesicular disease and vesicular stomatitis that produce clinically indistinguishable syndromes in pigs and cattle, did not occur. The test procedure was simple and rapid, and typically provided a result within 1–10 min of sample addition. Simple homogenizers that could be used in field conditions for preparing epithelial suspensions were demonstrated to be effective for LFD application. These data illustrate the potential for the LFD to be used next to the animal in the pen-side diagnosis of FMD and for providing rapid and objective support to veterinarians in their clinical judgment of the disease. ID nr. 4324 Eldin P, Papon L, Oteiza A, Brocchi° E, Lawson TG, Mechti N Pag. 212 di 300 31/08/2011 TRIM22 E3 ubiquitin ligase activity is required to mediate antiviral activity against encephalomyocarditis virus J Gen Virol. - Vol. 90 ( 2009). - p 536-545. - 44 bib ref Impact factor: 3,092 The interferon (IFN) system is a major effector of the innate immunity that allows time for the subsequent establishment of an adaptive immune response against a wide-range of pathogens. Their diverse biological actions are thought to be mediated by the products of specific but usually overlapping sets of cellular genes induced in the target cells. Ubiquitin ligase members of the tripartite motif (TRIM) protein family have emerged as IFN-induced proteins involved in both innate and adaptive immunity. In this report, we provide evidence that TRIM22 is a functional E3 ubiquitin ligase that is also ubiquitinated itself. We demonstrate that TRIM22 expression leads to a viral protection of HeLa cells against encephalomyocarditis virus infections. This effect is dependent upon its E3 ubiquitinating activity, since no antiviral effect was observed in cells expressing a TRIM22-deletion mutant defective in ubiquitinating activity. Consistent with this, TRIM22 interacts with the viral 3C protease (3CPRO) and mediates its ubiquitination. Altogether, our findings demonstrate that TRIM22 E3 ubiquitin ligase activity represents a new antiviral pathway induced by IFN against picornaviruses. ID nr. 4325 Papon L, Oteiza A, Imaizumi T, Kato H, Brocchi° E, Lawson TG, Akira S, Mechti N The viral RNA recognition sensor RIG-I is degraded during encephalomyocarditis virus (EMCV) infection Virology. - Vol. 393 ( 2009). - p 311-318. - 50 bib ref Impact factor: 3,539 RNA helicase-like receptors MDA-5 but not RIG-I has been shown to be essential for triggering innate immune responses against picornaviruses. However, virus–host co-evolution has selected for viruses capable of replicating despite host cells antiviral defences. In this report, we demonstrate that RIG-I is degraded during encephalomyocarditis virus (EMCV) infection. This effect is mediated by both the viral-encoded 3C protease and caspase proteinase. In addition, we show that RIG-I overexpression confers IFN-ß promoter activation during EMCV infection, in MDA-5 knockout (MDA-5-/-) mouse embryo fibroblasts. This induction is followed by a strong inhibition reflecting the ability of EMCV to disrupt RIG-I signalling. Taken together, our data strongly suggest that during evolution RIG-I has been involved for triggering innate immune response to picornavirus infections. ID nr. 4326 Tamba° M, Bonilauri° P, Galletti° G, Bonazza V, Zanardi° G Tracing activities on cattle coming from bluetongue restricted zones of north europe Blutongue Satellite Symposium : "Blutongue in Europe back to the future" : 7 June, 2008 Brescia, Italy : programme and abstracts / [s.l. : s. n., 2008]. - p 56 Blutongue Satellite Symposium : Brescia, Italy : 7 June, 2008) First author Tamba, Marco Introduction and objectives. Italy has been infected by Bluetongue virus (BTV) since 2000, but is still free from BTV serotype 8, the BTV strain responsible of epidemic in North Europe. Animal movement is the main risk factor related to the introduction of a new pathogen agent into a territory. Such risk is strongly associated to number of imported animals and lack of active surveillance system in the exporting country. During the period July-December 2007 an overall number of 1,630 batches - 57,556 heads - were introduced from BTV-8 resctricted zones into Lombardy and Emilia-Romagna Regions. Most of them came from France. In the present work first results of tracing activities performed on imported cattle coming from North Europe are reported. 2.Material and Methods During period October 2007–January 2008, 21,879 blood samples were Pag. 213 di 300 31/08/2011 collected from imported cattle. A total of more 7,117 blood samples has been collected in repeated checks of infected herds and monitoring of surrounding farms for identification of BTV-8 positive cattle. 3.Results 123 imported cattle (0.6%) resulted BTV-8 positive and more than 80% of seropositive samples were also PCR positive. In herds with infected imported animals a limited number of animals sero-converted. No BTV-8 seropositive animals were identified in farms surrounding infected herds. 4.Discussion and Conclusions Data collected show as BTV-8 has been introduced in Italy through import of cattle coming from infected zones. ID nr. 4327 Tamba° M, Rugna° G, Galletti° G, Leonelli ° R, Luppi° A, Piccolomini L Incidence survey in an area interested by active circulation of vaccinal strain of bluetongue virus serotype 2 Blutongue Satellite Symposium : "Blutongue in Europe back to the future" : 7 June, 2008 Brescia, Italy : programme and abstracts / [s.l. : s. n., 2008]. - p 55 Blutongue Satellite Symposium : Brescia, Italy : 7 June, 2008) First author Tamba, Marco Introduction and Objectives Since 2004 the mountain area of the Forlì Province has been interested by a spontaneous circulation of a vaccine strain of Bluetongue virus serotype 2 (BTVV-2). In this area BTV modified live vaccine has been never used. The area is 100 kilometres far from the nearest vaccination zone. Serological and entomological monitoring plans have been yearly carried out in order to follow the evolution of the problem. Monitoring activities evidenced a relevant virus spread in the area of several mountain municipalities. At the end of Summer 2004 in this area the prevalence of infection increased from 15,3% to 70,1% in farms and from 2.5% to 20.9% in animals. A survey carried out in the autumn-winter period 20052006 in the same municipalities showed similar prevalences (57.6% in farms and 16.9% in animals): this was suggestive of a decrease in virus spreading during summer 2005. In this paper the results of an investigation, made during the autumn-winter period 2006-2007, for the evaluation of the incidence of the transmission of BTVV-2 strain during summer 2006 are presented; the aim of the survey was to supplement the existing data on the evolution of the problem. 2.Material and Methods A number of 150 bovine farms located in the studied area were selected; this sample included all BTVV-2 seropositive farms (96) and a fraction of randomly selected seronegative farms (54) Sera collected during Bovine Brucellosis surveillance plan were utilised in order to evaluate the serological status of the selected farms; among this sera only those taken from animals that were found BTV sero-negative in the previous monitoring were tested again for BTV antibodies. Serum samples were tested by a cELISA test for BTV antibodies. Positive sera were sent to the National Reference Centre (CESME, Teramo) for identification of the involved serotype. 3.Results An overall number of 1,287 sera collected in 120 farms were tested. Four animals belonging to 4 different farms resulted positive. Seropositive samples were confirmed as reactors to BTV serotype 2 by sero-neutralization test. 4.Discussion and Conclusions During 2006 epidemic season the estimated incidence was 0.3% (CI 95%: 0.1%-0.8%). It appears that the spread of BTVV-2 is continuously decreasing and that , in lack of mass vaccination campaigns using modified live vaccine, could stop in the next future. ID nr. 4329 Oliverio° E, Finazzi° G; Daminelli° P, Monastero° P, Bonometti° E, Serraino A, Gregorelli M, Boni° P Dynamics of several pathogen microorganisms in packaged water-buffalo mozzarella cheese Ind Aliment (Pinerolo). - Vol. 49 n 500 ( 2010). - p 28-35. - 6 bib ref Project PRC2006001 - Development and implementation of epidemiological surveillance and risk analysis for primary production and processing of typical area food - Boni Dr. Paolo - Solo - MINSAN - 2006 - 1131023,00 EUR - 02/07/2007 0.00.00 - 01/07/2010 0.00.00 - 1 - M6 - Sezione diagnostica provinciale di Mantova - Nigrelli Dr. Arrigo - I 2 - N1 - Sezione diagnostica provinciale di Bologna - Belletti Dr. Gian Luca - I 3 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Pag. 214 di 300 31/08/2011 Dr. Paolo - I 4 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I 5 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I First author Oliverio, Elisa The aim of this survey was to evaluate the behaviour of Listeria monocytogenes, Salmonella typhimurium, Staphylococcus aureus, Escherichia coli O157:H7 in packaged Water-Buffalo mozzarella cheese. Through two successive trials,the conditioning liquid was contaminated with a mixtures of these microorganisms. During the first trial contaminated samples were stored at 20°C for 6 days; in the second samples were stored at four different temperatures for variable times. The results showed that Staph. aureus is not a risk to the consumer because its concentration reduced at all different storage conditions and the toxin is never produced. Salmonella typhimurium and E. coli O157:H7 concentration increased only at 20°C but after the end of the shelf-life period established by producers (5 days). In other storage conditions the concentration of both pathogens didn’t modify or even decreased decreased. L. monocytogenes decreased at 5°C, while in other storage conditions, after a lag phase variable depending on temperature, the bacterium showed the capability to grow. ID nr. 4330 Daffara S, Brazzelli V, Ronzi G, Vicari° N, Fabbi° M, Marone° P Chronic erythema and fish for salmon in Alaska: an enigma resolved by the laboratory of microbiology XXXVIII Congresso Nazionale Associazione Microbiolologi Clinici Italiani (AMCLI) : 17 - 20 Novembre 2009 Rimini / [s.l. : Associazione Microbiolologi Clinici Italiani, 2009]. Congresso Nazionale Associazione Microbiolologi Clinici Italiani (AMCLI) (28 : Rimini : 17 - 20 Novembre 2009) Project PRC2008005 - Mapping Arthropod Vectors: on field evaluation of different monitoring methods Tamba Dr. Marco - Capofila - MINSAN - 2008 - 187000,00 EUR - 01/10/2009 0.00.00 30/09/2012 0.00.00 - 1 - N0 - CEREV - Tamba Dr. Marco - I 2 - N8 - Sezione diagnostica provinciale di Reggio Emilia - Luppi dr. Andrea - I 3 - M8 - Sezione diagnostica provinciale di Pavia - Fabbi Dr. Massimo - I 4 - G1 - Reparto di Virologia e Sierologia Specializzata - Lelli dr. Davide - I 5 - Centro Agricoltura Ambiente "G. NIcoli" - Bellini dr. Romeo - E 6 - Istituto Zoop. della Sicilia - Torina dr.ssa Alessandra - E A 50 years-old man, pentathlete and passionate fishing for salmon, after returning from Alaska, in August 2008 came to the clinic of the Division of Dermatology IRCCS S. Matteo di Pavia following the appearance of erythematous lesions and indolent in his right thigh, right knee and gradually extended to the root of the lower right rear to the buttock. A clinical appearance histologically characterized mainly by the presence of plasma cells have suggested to run the anti-Borrelia burgdorferi serology (IFI), which showed a questionable borderline positivity. Subsequent investigations by ELISA and Western Blot were both positive and led to a diagnosis of chronic migrant erythema in the course of borreliosis. This diagnosis was further confirmed by positive PCR for B. burgdorferi sensu lato. Further investigations are underway for the typing of the Borrelia at genospecie level. ID nr. 4334 Giovannini° S, Gradassi° M, Zanoni° M, Salogni° C, Alborali° L Abortion agents diagnostic survey in bovine foetuses in Brescia Province, Lombardy, Italy EBF 2009 European Buiatrics Forum : 1-3 Dec. 2009 Marseille / editors, R. Maillard and H. Navetat. Marseille : Societé francaise de Buiatrie, 2009. - p 277 European Buiatrics Forum (EBF) (XXV : Marseille : 1-3 Dec. 2009) Project PRC2006001 - Development and implementation of epidemiological surveillance and risk analysis Pag. 215 di 300 31/08/2011 for primary production and processing of typical area food - Boni Dr. Paolo - Solo - MINSAN - 2006 - 1131023,00 EUR - 02/07/2007 0.00.00 - 01/07/2010 0.00.00 - 1 - M6 - Sezione diagnostica provinciale di Mantova - Nigrelli Dr. Arrigo - I 2 - N1 - Sezione diagnostica provinciale di Bologna - Belletti Dr. Gian Luca - I 3 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 4 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I 5 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I First author Giovannini, Stefano The aim of this survey, which ran for a four years period (from 2005 to 2008), was to evaluate the most widely spread abortive agents in Brescia Province by examining aborted bovine foetuses specimens delivered to the Veterinary Diagnostic Section in Brescia - Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna. The study population consisted of 372 bovine foetuses, which were submitted to necropsy examination and diagnostic tests; in this survey we did not consider serological data of dairy cows. Compatibly with the storage conditions and the amount of available material, either bacteriological tests on samples from liver, brain, lung and abomasal fluid or specific bacteriological tests for the detection of Brucella spp and Campylobacter spp were performed. Fetal fluids of foetuses over the fifth month of pregnancy were analyzed with serological tests in order to detect antibodies against Neospora caninum (ELISA), Brucella spp. (FdC), Leptospira spp. (MAT), BI-IVI (ELISA), BVDV (ELISA), Chlamydophyla psittaci (Cft), Toxoplasma gondii (IFI and AL) and Coxiella burnetii (ELISA). Specimens of brain tissue were analysed with PCR test for the detection of Neospora caninum and, in some cases. PCR and cell culture techniques for Chlamydophyla psittaci and Coxiella burnetii were performed. During the study period it was possible to carry out 324 necropsies, 308 conventional and 296 specific bacteriological tests for Brucella detection, 293 specific culture for Campylobacter detection, 300 PCR for Neospora detection and different serological tests on foetal fluids to detect antibodies against Neospora caninum (190), BVDV (236), Toxoplasma gondii (227), Chlamydophyla psittaci (236), Leptospira spp. (238), BHVI (236), Brucella spp. (227) and Coxiella burnetii (1). Moreover, we made 44 virological tests and 3 PCR tests for detection of Chlamydophyla psittaci and Coxiella burnetii. Our findings suggested that the most important cause of abortion in dairy cows in Brescia Province is Neospora caninum, which showed an overall prevalence of 38% in foetuses brain (PCR) and a seroprevalence of 21% in fetal fluids. Bacterial agents of septicemic infections were isolateti in 16% of the samples (50 cases): in particular Streptococcus spp. (40%), Actinomyces pyogenes (28%) and E. coli (16%). Brucella spp. and Campylobacter spp. tests were negative. Serological results for Chlamydophyla psittaci, Leptospira spp., Coxiella burnetii and Brucella spp were negative, whereas, interestingly, a low level of seroprevalence for BVD (2,9%), Toxoplasma gondii (2,2%) and BHV1 (3,3%) was detected. Virological and PCR tests for Chlamydophyla psittaci and Coxiella burnetii detection were negative. ID nr. 4335 Ferris NP, Nordengrahn A, Hutchings GH, Paton DJ, Kristersson T, Brocchi° E, Grazioli° S, Merza M Development and laboratory validation of a lateral flow device for the detection of serotype SAT 2 foot-and-mouth disease viruses in clinical samples J Virol Methods. - Vol. 163 ( 2010). - p. 474-476. - 12 bib ref Impact factor: 2,133 A lateral flow device (LFD) for the detection of foot-and-mouth disease virus (FMDV) of the SAT 2 serotype was developed using a monoclonal antibody (Mab 2H6). The performance of the LFD was evaluated in the laboratory on suspensions of vesicular epithelia: 305 positive for FMDV type SAT 2 from suspected cases of vesicular disease collected from 30 countries and 1002 samples shown to be negative for FMDV type SAT 2 collected from 67 countries between 1968 and 2008. The diagnostic sensitivity of the LFD for FMDV type SAT 2 was higher at 88% compared to 79% obtained by the reference method of antigen ELISA, and the diagnostic specificity of the LFD was approximately 99% compared to 100% for the ELISA. The device recognized FMDV strains of wide diversity within the FMDV SAT 2 serotype and gave a superior performance for their detection compared to the 1F10 LFD which had been developed previously and shown to perform less well for the detection of FMDVs of this particular serotype. Reactions in the SAT 2 2H6 LFD with the Pag. 216 di 300 31/08/2011 viruses of other FMDV serotypes and swine vesicular disease (which produces a clinically indistinguishable syndrome in pigs), did not occur. These data illustrate the potential for the LFD to be employed to complement the 1F10 device next to the animal in the pen-side diagnosis of FMD, for providing rapid and objective support to veterinarians in their clinical judgment of the disease and for specific confirmation of a FMDV type SAT 2 infection. ID nr. 4336 Cavirani S, Piancastelli C, Ghidini F, Taddei S, Ferrari S, Boldini° M Immune response by monovalent BoHV-1 marker and BVDV vaccines administered singularly and associated Buiatria. - Vol. 4 no 3 ( 2009). - p 3-9. - 5 bib ref The study is aimed at comparing the humoral and cellular immune response elicided by two vaccines, namely IBR live-attenuated marker vaccine and BVD inactivated one administered singularly, concurrently or simultaneously. Results state that either the concurrent or simultaneous administration did not interfere ori the efficacy of the vaccines. In addition, the simultaneous administration enhanced the immune response of IBR marker vaccines that could profit by the adiuvant component of the inactivated BVD vaccines. Ori the whole, the results of the study support the application in field of either the simultaneous or concurrent administration of IBR live marker and inactivated BVD vaccines that could make simpler the management of the immunization programs, particularly in large dairy herds. ID nr. 4337 Mazzoni M, Merialdi° G, Sarli G, Trevisi P, Bosi P Effect of two doses of different zinc sources (inorganic vs. chelated form) on the epithelial proliferative activity and the apoptotic index of intestinal mucosa of early-weaned pigs orally challenged with E. coli K88 Asian Aust J Anim Sci. - Vol. 23 no 6 ( 2010). - p 777-785. - 32 bib ref We aimed to assess the effect of two doses of different sources, inorganic (zinc oxide) or chelated (zinc glutamate chelate) on morphology and turn-over of the small intestine of early-weaned pigs orally challenged with enterotoxigenic E. coli K88 (ETEC). Sixty pigs weaned at 21 days were assigned to one of the following 5 diets: control (C); C+Zinc oxide (ZnO), either a 200 or a 2,500 mg Zn/kg dose; or C+zinc chelate with glutamic acid (Glu-Zn), either a 200 or a 2,500 mg Zn/kg dose. On d 2, the pigs were orally inoculated with 1.5 ml of a 1010 CFU/ml E. coli K88ac O148 suspension. Zinc supplements did not improve the performance of the pigs, but on d 5 they reduced the ETEC faecal excretion, and this was mainly due to high zinc doses (p<0.05). The villous height was improved by the zinc supplements in the duodenal tract (p<0.01) whatever the source and the level, whereas no effect was seen in the other two tracts. The diet did not affect apoptosis and mitosis counts, while ETEC-susceptible pigs had more mitotic cells in the villi than non-susceptible pigs, particularly in the jejunum (p<0.01). The duodenum had fewer mitotic cells in the villi (p<0.05) and in the crypts (p<0.01) and more apoptotic cells in the villi. High dietary doses of ZnO or Zn-Glutamate improve villous height of the duodenum, but not of the jejunum and the ileum, and do not affect the epithelial proliferative activity and apoptotic index of intestinal mucosa of early-weaned pigs orally challenged with ETEC. ID nr. 4338 Ntafisa V, Fragkiadakia E, Xylouria E, Omirou A, Lavazza° A, Martella V Rotavirus-associated diarrhoea in foals in Greece Vet Microbiol. - Vol. 144 ( 2010). - p 461-465. - 33 bib ref Impact factor: 2,874 Pag. 217 di 300 31/08/2011 Severe outbreaks of diarrhoeic syndrome occurred in young foals at the same stud farm during two consecutive breeding periods namely spring 2006 and 2007. Rotavirus-like particles were detected by electron microscopy in the faeces of the affected foals and group A rotavirus infection was confirmed by Reverse-Transcription (RT)-PCR with selected sets of rotavirus-specific primers. Sequence analysis of the genes encoding the outer capsid rotavirus proteins VP7 and VP4 enabled classification of the viruses as G3AP[12] and revealed that the viruses were highly similar to recently reported equine rotavirus strains circulating in Europe. All Greek equine rotavirus isolates were genetically identical, suggesting persistence of the same viral strain in the stud farm, over the two consecutive foaling periods. ID nr. 4345 Catalani E, Amadori° M, Vitali A, Bernabucci U, Nardone A, Lacetera N The Hsp72 response in peri-parturient dairy cows: relationships with metabolic and immunological parameters Cell Stress Chaperones. - Vol. 15 no 6 ( 2010). - p 781-790. - 59 bib ref Impact factor: 2,167 Project PRF2006201 - Adaptation of farm animals: repercussions on disease occurrence and drug usage Amadori Dr. Massimo - Capofila - MINSAN - 2006 - 861300,00 EUR - 15/01/2008 0.00.00 15/12/2010 0.00.00 - 1 - G3 - Reparto benessere animale, immunoprofilassi, allevamenti e sperim. Animale - Amadori Dr. Massimo - I 2 - IZSSA - Nicolussi dr.ssa Paola - E 3 - Università degli Studi della Tuscia (Dipartimento di Produzioni Animali) - Lacetera dr. Nicola - E 4 - IZSME - Martucciello dr.ssa Alessandra - E 5 - IZSUM - Moscati dr.ssa Livia - E 6 - IZSLT - Cavallina dr.ssa Roberta - E 7 - IZSVE - Stefani dr.ssa Anna-Lisa - E 8 - Istituto Superiore di Sanità - Vitale dr. Augusto - E 9 - Università Cattolica del Sacro Cuore - Facoltà di Agraria - Istituto di Zootecnica (Piacenza) Trevisi dr. Erminio - E 10 - UNIVERSITA' MILANO - DIPARTIMENTO MEDICINA VETERINARIA EX ISTITUTO DI ZOOTECNICA - Verga Dr.ssa Marina - E The study was aimed at assessing whether the peri-parturient period is associated with changes of intracellular and plasma inducible heat shock proteins (Hsp) 72 kDa molecular weight in dairy cows, and to establish possible relationships between Hsp72, metabolic, and immunological parameters subjected to changes around calving. The study was carried out on 35 healthy peri-parturient Holstein cows. Three, two, and one week before the expected calving, and 1, 2, 3, 4, and 5 weeks after calving, body conditions score (BCS) was measured and blood samples were collected to separate plasma and peripheral blood mononuclear cells (PBMC). Concentrations of Hsp72 in PBMC and plasma increased sharply after calving. In the post-calving period, BCS and plasma glucose declined, whereas plasma nonesterified fatty acids (NEFA) and tumor necrosis factor-alpha increased. The proliferative responses of PBMC to lipopolysaccharide (LPS) declined progressively after calving. The percentage of PBMC expressing CD14 receptors and Toll-like receptors (TLR)-4 increased and decreased in the early postpartum period, respectively. Correlation analysis revealed significant positive relationships between Hsp72 and NEFA, and between PBMC proliferation in response to LPS and the percentage of PBMC expressing TLR-4. Conversely, significant negative relationships were found between LPS-triggered proliferation of PBMC and both intracellular and plasma Hsp72. Literature data and changes of metabolic and immunological parameters reported herein authorize a few interpretative hypotheses and encourage further studies aimed at assessing possible cause and effect relationships between changes of PBMC and circulating Hsp72, metabolic, and immune parameters in dairy cows. ID nr. 4346 Moretto A, Mammone T, Vida P, Lavazza° A, Moretto A European Content for public health awareness of the Rural population on Avian and Influenza Pag. 218 di 300 31/08/2011 Pandemic (ECORAIP) 17th International congress of agricultural medicine and rural health : October 13-16, 2009 Cartagena, Colombia / [s.l : s.n., 2009]. - p. ?? International congress of agricultural medicine and rural health (17th : Cartagena, Colombia : October 1316, 2009) The population living in rural areas of Europe is crucial to the potential transmission of avian influenza to humans, due to specific circumstances pertaining to rural life such as backyard poultries, multi-species bird’s farms, proximity to wetlands where migratory birds stop over, and open market’s custom. This project aims to provide practical information and guidelines on effectively preventing and managing these potential threats, targeting the rural population, where a gap of information can be observed. The particular needs of the rural population and its different characteristics across three European Sub-regions which are representative of the Southern, Central-Northern and Eastern Europe have been taken into account. Rural life "risk factors" have been identified in order to develop specific guidelines. Up-to-date scientific knowledge has been evaluated and criteria defined to integrate or customize the available material of public health campaigns, so that this can be disseminated in a feasible and effective way to the population. The channels and networks used for the dissemination of the public health material have been also assessed, reviewing existing efforts aimed at targeting the rural population. The most effective communication strategies have been identified and specific guidelines have been developed as the best practice model. The final phase included the practical application of the guidelines through a pilot test carried out in 30 municipalities of the participating countries (selected according to their socio-demographic characteristics). The "pilot campaign" has included a presentation and administration to the local population of a pre/post questionnaire, in order to identify potential deficiencies or operational problems of the format or content of the information or of the dissemination method. The results of the questionnaires have been evaluated and used to amend where necessary the text for the final printed version of the illustrated leaflet. The leaflet is available in five languages (English, Italian, Greek, Polish and German). Public Health Executive Agency (PHEA) â “ Agreement n. 20067 (2007-2008). Partnership: National Kapodistrian University of Athens (Greece), Harvard School of Public Health â “ Cyprus (Cyprus), Nofer Institute of Occupational Medicine (Poland), Techniche Universitat Dresden (Germany). ID nr. 4346A Mammone T, Vida P, Lavazza° A, Moretto A European content for public health awareness of rural population on avian and influenza pandemic (ECORAIP) J Rural Med. - Vol. 5 n 1 ( 2010). - p. 95-96 International congress of agricultural medicine and rural health (17th : Cartagena, Colombia : October 1316, 2009) The population living in rural areas of Europe is crucial to the potential transmission of avian influenza to humans, due to specific circumstances pertaining to rural life such as backyard poultries, multi-species bird’s farms, proximity to wetlands where migratory birds stop over, and open market’s custom. This project aims to provide practical information and guidelines on effectively preventing and managing these potential threats, targeting the rural population, where a gap of information can be observed. The particular needs of the rural population and its different characteristics across three European Sub-regions which are representative of the Southern, Central-Northern and Eastern Europe have been taken into account. Rural life “risk factors” have been identified in order to develop specific guidelines. Up-to-date scientific knowledge has been evaluated and criteria defined to integrate or customize the available material of public health campaigns, so that this can be disseminated in a feasible and effective way to the population. The channels and networks used for the dissemination of the public health material have been also assessed, reviewing existing efforts aimed at targeting the rural population. The most effective communication strategies have been identified and specific guidelines have been developed as the best practice model. The final phase included the practical application of the guidelines through a pilot test carried out in 30 municipalities of the participating countries (selected according to their socio-demographic char96 acteristics). The “pilot campaign” has included a presentation and administration to the local population of a pre/ post questionnaire, in order to identify potential deficiencies or operational problems of the format or content of the information or of the dissemination method. The results of the questionnaires have been evaluated and used to amend where necessary the text for the final printed Pag. 219 di 300 31/08/2011 version of the illustrated leaflet. The leaflet is available in five languages (English, Italian, Greek, Polish and German). Public Health Executive Agency (PHEA) “ Agreement n. 20067 (2007-2008). Partnership: National Kapodistrian University of Athens (Greece), Harvard School of Public Health, Cyprus (Cyprus), Nofer Institute of Occupational Medicine (Poland), Technische Universitaet Dresden (Germany). ID nr. 4348 Cammi° G, Arrigoni° N, Agnelli° E, Capra D, Belletti° GL Campylobacter jejuni in the bulk milk for direct sale: dairy herd investigation Buiatria. - Vol. 4 no 2 ( 2009). - p 11-16. - 21 bib ref First author Cammi, G We describe the investigation undertaken in a dairy herd composed of 60 lactating cows, where Campylobacter jejuni was isolated in bulk milk produced for direct sale using an automatic dispenser. The microorganism was isolated from one quarter of a cow with a chronie subacute mastitis. We also found C. jejuni in faeccs from 2 out of 24 (8%) cows and in 1 out of 4 straw bedding sample. When the milk of the infected cow was excluded from the collection, the contamination of the bulk milk ceased, showing that direct milk excretion was the source of the C. jejuni rather than faccal contamination during milking process. C. jejuni mastitis, although rare, must be considered as a possible source of milk contamination. In the described case, a specific therapy was able to determine both the clinical and bacteriological cure. ID nr. 4349 Foni° E, Chiapponi° C, Sozzi° E, Barbieri° I, Moreno° AM, Merenda° M, Luppi° A, Alborali° L, Cordioli° P Characterization of swine influenza viruses circulating in Italy in 2008-2009 Atti Convegno SIPAS. - Vol. 36 ( 2010). - p 159-166. - 11 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini (SIPAS) (36 : Montichiari (BS) : 25-26 Marzo 2010) Project PRF2006304 - Prevalance of avian and swine influenza virus infection among farmers and animals. - Vonesch Dr.ssa Nicoletta - UO - MINSAN - 2006 - 300000,00 EUR - 02/01/2008 0.00.00 02/01/2011 0.00.00 - 1 - G2 - Reparto di Batteriologia Specializzata - Cordioli Dr. Paolo - I First author Foni, Emanuela Samples from 1854 outbreaks of respiratory disease in Italian pig farms, collected in 2008-2009, were submitted to RT-PCR for infl uenza virus M gene. From 114 RT-PCR positive samples collected in 2008, 52 swine infl uenza viruses (SIVs) were isolated and subtyped (25 H1N1, 7 H1N2 and 20 H3N2). From 102 RTPCR positive samples collected in 2009, 54 SIVs were isolated and subtyped ( 21 H1N1, 19 H1N2, 13 H3N2 and 1 H1N1 Pandemic 2009). Genetic and phylogenetic analysis of H1N1 strains showed a low degree of etherogeneity, confi rming the circulation of viruses referring to the “avian–like” Sw/Finistere/2899/82. Haemoagglutinin (HA) of H3N2 SIVs showed to be strictly correlated to the reference strain A/Port Chalmers/73, while it was demonstrated that the neuroaminidase (NA) was correlated to NA of recent German H1N2 SIVs. Phylogenetic analysis of H1N2 SIVs showed that these recent Italian strains were reassortant strains carrying the HA closely related to European H1N2 SIVs and the NA to the recent H3N2 human influenza virus. ID nr. 4350 Sozzi° E, Martinelli° N, Moreno° A, Lelli° D, Fontana° R, Canelli° E, Vinco° LJ, Alborali° GL, Lombardi° G, Cordioli° P Pandemic influenza virus (A/H1N1)in pigs Pag. 220 di 300 31/08/2011 Atti Convegno SIPAS. - Vol. 36 ( 2010). - p 153-158. - 11 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini (SIPAS) (36 : Montichiari (BS) : 25-26 Marzo 2010) First author Sozzi, Enrica Influenza virus A/H1N1, which is currently causing a pandemic, contains gene segments with ancestors in the North American and Eurasian swine lineages. To get insights into virus replication dynamics, clinical symptoms and virus transmission in pigs, we infected animals intratracheally with infl uenza pandemic viruses A/H1N1. In the fi rst trial, nasal discharge, sneezing and fever were observed in two pigs inoculated with A/It/148/2009 (H1N1).. One pig was sacrifi ced 3 days post-infection (p.i.) and virus detected in lungs, trachea and nasal swabs. Serum of other infected pig collected 18 days p.i. was positive by NPA-ELISA and HI tests. In the second trial, pigs inoculated with A/Sw/It/290271/2009 (H1N1) developed only mild fever. Nasal swabs of all infected animals were positive by rRTPCR 2, 4 and 7 days p.i., and 9 days p.i. in only two pigs. Contact pigs became infected, shed virus and developed clinical symptoms similar to those shown by the inoculated animals. Serological response was evidenced by NPA-ELISA and HI starting 9 days p.i. in infected and 14 days p.i. in contact pigs. ID nr. 4351 Raffi V, Mazzoni C, Rosignoli° C, Bonilauri° P, Spaggiari° B, Gelmetti° D, Gibelli° L, Maioli° G, Faccini° S, Dottori° M, Luppi° A, Tonon° F Clostridiosis in the farrowing room: a clinical case report with an atypical onset Atti Convegno SIPAS. - Vol. 36 ( 2010). - p 136-144. - 15 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini (SIPAS) (36 : Montichiari (BS) : 25-26 Marzo 2010) Project PRC2001006 - Use of PCR for typing C. perfrigens strains isolated from enteric and entero-toxiemic disease cases of animals and animal source foods. - Rosignoli Dr. Carlo - Solo - MINSAN - 2001 93163464,00 LIT - 03/03/2003 0.00.00 - 02/07/2004 0.00.00 - 1 - M6 - Mantova - Rosignoli Dr. Carlo - I In this work the Authors described a syndrome in several suckling piglet broods (one-day old) occurred in a herd in the Northern Italy and characterised by death 12 hours after the onset of clinical signs. Clinical signs were characterised by jaundice, lethargy and diarrhea. Dead animals submitted for necropsy to IZSLER, Reggio Emilia Laboratory, showed good nutritional condition, necrosis of small intestine mucosa and liver degeneration with foci of parenchymal necrosis. Sow feed micotoxin toxicological investigations were carried out to elucidate the nature of liver degeneration with negative results. Clostridium perfrigens was isolated from the small intestine of several piglets (1 x 107 ufc of C. perfrigens from each gram of intestinal content). In Mantova laboratory (IZSLER) genes for toxins a and ß2 were detected using a multiplex polymerase chain reaction method from C. perfrigens isolated. Histological examination of samples collected during the necropsy showed vacuolar liver degeneration, necrotic enteritis and multiple gram-positive, spore-forming bacterial colonies in the lumen. The syndrome did not appear to be related to dietary or any other specific management factors. A long acting macrolid administer to piglets in the fi rst twelve hours after the birth let a complete solution of the syndrome. ID nr. 4352 Zanoni° MG, Gradassi° M, Moreno° MA, Catella° A, Salogni° C, Sozzi° E, Foni° E, Cordioli° P, Alborali° L Pandemic influenza virus (A/H1N1) outbreak in pig farm in North of Italy Atti Convegno SIPAS. - Vol. 36 ( 2010). - p 145-151. - 19 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini (SIPAS) (36 : Montichiari (BS) : 25-26 Marzo 2010) Pag. 221 di 300 31/08/2011 First author Zanoni, Maria_Grazia The swine influenza virus (SIV) frequently causes acute respiratory disease in pigs worldwide and is an important pathogen in the porcine respiratory disease complex (PRDC). The fi rst H1N1 pandemic outbreak in sow farm in Italy is described in this paper. The main clinical signs were depression and agalactia in sows during the fi rst week after farrowing. Different weights were observed in litters and piglets showed wasting and dehydration. The loss interested litters and were quantifi ed in increased mortality in farrowing units, performance reduction in sows consisting in enhanced mortality and fertility rate reduction. ID nr. 4353 Candotti° P, Merialdi° G, Guerra° O, Nassuato C, Rota_Nodari° S Pandemic influenza virus (A/H1N1) outbreak in pig farm in North of Italy Atti Convegno SIPAS. - Vol. 36 ( 2010). - p 121-129. - 28 19 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini (SIPAS) (36 : Montichiari (BS) : 25-26 Marzo 2010) First author Zanoni, Maria_Grazia A survey was performed in eleven pig farms with a post-weaning multisystemic wasting syndrome (PMWS). In each farm faecal samples were collected from 10 weaner pigs with clinical signs of the disease. A visual examination of faecal samples was performed on farm and different bacterial counts (total bacterial count, faecal streptococci, faecal coliformi and Escherichia coli) were determined in laboratory. The effect of orally administered antibiotics (amoxicillin and/or colistin) on these parameters was studied as well. Compared with data in literature, coliforms were tendentially higher while total bacterial counts were into ranges reported.Antibiotics did not signifi cantly affect the bacterial counts examined. ID nr. 4354 Apicella M, Osella E., Gambino F, Alborali° L, Zanoni° MG, Salogni° C, Bollo E, Guarda F Sublinical cystitis in young sows: a preliminary study Atti Convegno SIPAS. - Vol. 36 ( 2010). - p 193-197. - 12 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini (SIPAS) (36 : Montichiari (BS) : 25-26 Marzo 2010) The authors have examined 594 urinary bladders of young sows aged 9 months and weighing 150-170 kg, and 69 urine samples for bacterial isolation. In 50 (8,1%) of the urinary bladder, inflammatory foci and ulcers were detected, in 20 (3,4%) samples catarrhal material, uroliths and sediments, and in 43 (62,3%) samples several bacterial species were isolated (E. coli, Staphylococcus sp., Streptococcus sp., Serratia sp., Proteus sp.). The histopathogenesis of the lesions follows the characteristic stages of the inflammatory process, while the etiological factors responsible for the lesions are not yet fully elucidated. Poor environmental conditions, stressors and the coitus may be responsible for ascending infections of the urinary tract. ID nr. 4355 Luppi° A, Bonilauri° P, Ferrari E, Gherpelli° Y, Merialdi° G., Dottori° M Serological characterization of haemophilus parasuis strains isolated from pathological samples Atti Convegno SIPAS. - Vol. 36 ( 2010). - p 205-211. - 19 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini (SIPAS) (36 : Montichiari (BS) : 25-26 Marzo 2010) Pag. 222 di 300 31/08/2011 First author Luppi, Andrea From 2007-2009 a total of 44 Haemophilus parasuis fi eld isolates was collected from diseased pigs in connection with routine diagnostics of Istituto Zooprofi lattico of Lombardia and Emilia Romagna (IZSLER), Reggio Emilia Laboratory. The isolates were serotyped by agar gel immunodiffusion test using specifi c antisera against serovars 2, 4, 5, 12, 13. The choice of antisera used was performed considering the prevalence of different virulent serotypes described in other european countries. In our study serovar 4 was the most prevalent (34%) followed by serovar 13 (22,7%) and serovar 5 (15,9%), while 22,7% of the isolates could not be assigned to a serovar (nontypaple isolates). The strains could be divided into two groups depending on whether they were isolated from cases with systemic disease (polyserositis, arhritis or meningitis) or if they only were found in the lower respiratory tract. The most marked difference were observed for serovar 4, which had a higher prevalence in systemic infection compared to respiratory disease. The frequency of the isolation of serotypes 5 and 13 from pigs with o without polysierositis were similar, while nontypaple isolates had a higher prevalence in respiratory disease compared to systemic infection. ID nr. 4356 Iodice G, Luppi° A, Franchi L, Bonilauri° P, Merenda° M, Dottori° M Simultaneous infection by serotypes 4 and 12 of Haemophilus parasuis in a swine herd Atti Convegno SIPAS. - Vol. 36 ( 2010). - p 213-220. - 14 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini (SIPAS) (36 : Montichiari (BS) : 25-26 Marzo 2010) In a pig-farm of northern Italy, during March-April 2009, was observed an increasing losses in the postweaning period. The piglets showed respiratory symptoms coupled with lameness, nervous signs and pyrexia (41°C). Two serovars of Haemophilus parasuis were isolated from diseased pigs in connection with routine diagnostics of Istituto Zooprofi lattico of Lombardia and Emilia Romagna (IZSLER), Reggio Emilia Laboratory. The strains isolated were serotyped using the agar gel immunodiffusion test and indirect haemoagglutination. Two strains isolated from pigs with systemic disease (polysierositis) belonged to serovar 4, while another strain isolated from pig with bronchopneumonia was serotyped as serovar 12. This results agreed with the classifi cation of Kielstein and Rapp-Gabrielson (1992), in which the serovar 12 has been shown to be highly virulent causing death in SPF pigs within 4 days after infection without polysierositis. In contrast, in the same classifi cation, serovar 4 would be moderately virulent causing polysierositis and generally not death. However, the connection between serovar isolated and gross lesions observed can be influenced by several factors (host factors, vaccinations and other bacterial and viral diseases). In this work H. parasuis coexisted with other pathogens like Actinobacillus pleuropneumoniae and PRRSV. The results of this work showed the importance of isolates serotyping, mainly if the vaccination is to be used for disease protection. ID nr. 4357 Gradassi° M, Pavesi° R, Boniotti° B, Nassuato° C, Giovannini° S, Giacomini E, Bellini° S, Pacciarini° M, Alborali° L Detection of PRRSVin oral fluid samples: longitudinal study under field conditions Atti Convegno SIPAS. - Vol. 36 ( 2010). - p 225-231. - 12 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini (SIPAS) (36 : Montichiari (BS) : 25-26 Marzo 2010) PRRS (Porcine Reproductive and Respiratory Syndrome) control in swine farms is an ambitious challenge that has to be based on different measures and intervention plans and that, because of the high amount of diagnostic samples required, is often cost prohibitive. The selection of oral fl uid as diagnostic specimen is likely to be a promising alternative to serum. The main purpose of the present experimental study was to monitor PRRSV infection towards a longitudinal sampling of sera, according to the traditional diagnostic protocols, and to match sera with collective pen-based oral fl uid results. The preliminary data presented here Pag. 223 di 300 31/08/2011 suggests that the diagnostic sensitivity of the quantitative RT-PCR on oral fl uids, compared to the gold standard (RT-PCR on individual serum samples), can be accounted as satisfactory. ID nr. 4358 Dotti° S, Sandri GP, Villa° R, Razzuoli° E, Sossi° E, Amadori° M Kinetic development of immune response to Porcine Reproductive and Respiratory Syndrome (PRRS) in gilts Atti Convegno SIPAS. - Vol. 36 ( 2010). - p 232-237. - 7 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini (SIPAS) (36 : Montichiari (BS) : 25-26 Marzo 2010) Project PRRSV AUTOFINANZIATO - Evaluation of the immune response to Porcine Respiratory and Reproductive syndrome virus (PRRSV) - Ferrari Dr.ssa Maura - Solo - IZSLER - 2009 - 75000,00 EUR - 31/07/2009 0.00.00 - 31/12/2010 0.00.00 - 1 - K4 - REPARTO SUBSTRATI CELLULARI E IMMUNOLOGIA CELLULARE - Ferrari Dr.ssa Maura - I 2 - M1 - Sezione diagnostica provinciale di Brescia - Alborali Dr. Loris - I First author Dotti, Silvia The aim of this study was to evaluate the time-course of the immune response to PRRS virus in two PRRSVpositive farms, hereunder named SG and M. Gilts originating from a PRRS-negative multiplier had to be introduced into two PRRS positive commercial herd and the purpose was to house them without creating PRRS outbreaks in the receiving farms under study. For this purpose, two different strategies were adopted: vaccination in farm SG and direct contact with viremic animals in farm M. The cell-mediated immune response was evaluated by a PRRSV-specifi c interferon- release assay; the results showed, in both farms, that the cell-mediated response occurred at a low level and frequency, as opposed to the Ab response. This fi nding confi rms the results by other authors, i.e. the discrepancy between the two kinds of immune response to PRRSV (humoral and cell-mediated), following both vaccination and direct contact with viremic animals. Moreover, with saliva samples collected in farm M, an ELISA assay was performed to detect PRRSV-specifi c IgA antibodies, the assessment of which could be useful in association with other routine diagnostic methods. ID nr. 4359 Bresaola M, Lombardo T, Villa° R, Sossi° E, Ferrari° M Retrospective study on Swine Torque Teno virus genogroups 1 and 2 and Porcine circovirus type 2 coinfection in italian pig sera (from 1990 to 2009) Atti Convegno SIPAS. - Vol. 36 ( 2010). - p 239-247. - 32 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini (SIPAS) (36 : Montichiari (BS) : 25-26 Marzo 2010) Torque teno virus (TTV) was fi rst isolated from a human hepatitis patient in 1997. TTV was also identifi ed in several animals, including pigs, cattle, sheep, cats and dogs. Recent studies suggest that swine TTV (swTTV) could play aetiological roles in pig diseases, in particular in post-weaning multisystemic wasting syndrome. In this retrospective study, we analysed the prevalence of swTTV, genogroups 1 (swTTV1) and 2 (swTTV2), and Porcine Circovirus type 2 (PCV2) in Italian pig sera between years 1990 and 2009. The main objective is to assess whether there was a statistically signifi cant association between swTTV and PCV2 infection. Taking into account the whole study period, 73 out of 95 animals (76,84%) were infected with one or the other genogroup of swTTV, while 27 out of 95 pigs (28,42%) were co-infected with both genogroups. swTTV genogroup 1 (54 out of 95, 56,84%) was more prevalent than genogroup 2 (46 out of 95, 48,42%). Moreover, 41 out of 95 animals (43,16%) were infected with PCV2. Then, 20 out of 95 animals (21,05%) were coinfected with swTTV1 and PCV2, while 27 out of 95 animals (28,42%) were co-infected with swTTV2 and PCV2. These results suggest that there is a statistically signifi cant association between swTTV2 and PCV2 infection. Pag. 224 di 300 31/08/2011 ID nr. 4360 Candotti° P, Nassuato° C, Rota_Nodari° S Higher serum lypopolysaccarides in weaned piglets affected by syndromes of wasting Atti Convegno SIPAS. - Vol. 36 ( 2010). - p 248-253. - 12 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini (SIPAS) (36 : Montichiari (BS) : 25-26 Marzo 2010) First author Candotti, Paolo Five healthy farms and 13 farms with a post-weaning multisystemic wasting syndrome were selected for the study. Ten weaners were blood sampled in each farm. Blood samples were tested for lypopolisaccarides (LPS), Il-10 and TNF-a level. Results showed that the animals with a wasting syndrome had a higher serum level of LPS compared with healthy animals. The higher level of LPS could be associated with the wasting syndrome observed. It was individuated a cut-off of 0,44 EU/ml (sensitivity of 93% and specifi city of 82%). Il10 and TNF-a were not associated with LPS levels. ID nr. 4361 Sarli G, Morandi F, Panarese S, Bacci B, Ferrara D, Fusaro L, Bacci ML, Govoni N, Dottori° M, Bonilauri° P, Lelli° D, Leotti G, Vila T, Josel F, Ostanello F Conventional sows inseminated with artificially PCV2 infected semen Atti Convegno SIPAS. - Vol. 36 ( 2010). - p 254-263. - 23 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini (SIPAS) (36 : Montichiari (BS) : 25-26 Marzo 2010) Six conventional sows were inseminated with PCV2 added semen (infected) and three animals with semen and viral medium (controls). At ultrasonography (day 29 post insemination), only three out of the six infected animals were pregnant, unlike controls, all pregnant. Viremia was demonstrated in 4 out of 6 infected animals, along with a mean antibody titre higher only in exposed sows. Among infected, the sow with the lowest anti PCV2 titre (1/100) at the beginning of the experiment, kept displaying positive blood results over time and had also the highest number of PCV2 positive foetuses (10/16). One placenta displayed mild focal necrosis of the chorionic epithelium, positively stained by IHC for PCV2 antigen.The results obtained suggest that: 1) conventional sows can be infected by intrauterine exposition; 2) low antibody titres increase the probability of infection; 3) PCV2 infection close to insemination time reduces the pregnancy rate; 4) placental lesions may represent an additional cause of fetal suffering. ID nr. 4362 Canelli° E , Catella° A, Alborali° l, Sozzi° E, Lelli° D, Moreno° A, Fontana° R, Cordioli° P Preliminary study on the genetic variability of PCV2 strains isolated in the 1999-2002 period and since 2007 up to now Atti Convegno SIPAS. - Vol. 36 ( 2010). - p 265-270. - 18 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini (SIPAS) (36 : Montichiari (BS) : 25-26 Marzo 2010) First author Canelli, Elena Porcine circovirus 2 (PCV2) is associated with several diseases in pigs, all defined as PCVD (porcine circovirus associated diseases), that are now considered as a global problem causing significant economic losses in the swine industry. The virus has been classifi ed by phylogenetic analysis into two genetic types of PCV2a (defi ned also as cluster 2) and PCV2b (cluster 1). Although the PCV2b was commonly associated Pag. 225 di 300 31/08/2011 with PMWS, there are only hypotheses about the differences in viral virulence between the two subtypes. In order to differentiate the two PCV2 subtypes, two polymerase chain reaction (PCR) assays were developed. In this study, 30 PCV2b strains, 2 PCV2a strains and 4 strains showing both genotypes on a total of 36 strains were detected. All the PCV2 strains were originated from farms with PMWSanamnesis or from swine with pathological lesions. The results showed that the PCV2b is the prevalent genotype in both period in the analyzed area. ID nr. 4363 Magistrali CF, Cucco L, D’avino N, D’angelo G, Gherpelli° Y, Bonilauri° P, Merialdi° G Evaluation of antimicrobial susceptibility of B. hyodysenteriae: comparison between two methods Atti Convegno SIPAS. - Vol. 36 ( 2010). - p 337-340. - 8 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini (SIPAS) (36 : Montichiari (BS) : 25-26 Marzo 2010) The aim of this study was to compare two different methods available for the evaluation of antimicrobial susceptibility of Brachyspira hyodysenteriae. Two different tests used for determination of minimal inhibitory concentration (MIC) were compared: the Quick- MIC agar dilution method and the Broth dilution method. 20 B. hyodysenteriae strains, isolated from pigs affected by Swine Dysentery of Italian swine herds were tested blindly and independently by two different diagnostic laboratories. Results confi rmed what already described in literature: the Broth dilution method give lower MICs compared to the agar dilution method (Quick MIC). According to the MIC breakpoints thresholds (Ronne & Szancer, 1990), some strains classifi ed as intermediate by the agar dilution method (Quick MIC), resulted sensitive by the Broth Dilution method. Nevertheless, no isolate was classified resistant by agar dilution method (Quick MIC) resulted sensitive by the Broth Dilution Method or vice versa. In conclusion, classifi cation of B. hyodysenteriae isolates in different susceptibility groups using the two tests can occur, in particular for those showing intermediate values. ID nr. 4364 Mazzoni C, Tonon F, Borri E, Raffi V, Scollo A, Bonilauri° P Analysis of sow returns: preliminary studies Atti Convegno SIPAS. - Vol. 36 ( 2010). - p 347-355. - 10 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini (SIPAS) (36 : Montichiari (BS) : 25-26 Marzo 2010) The maintenance and persistence in sow pregnancy, go through the production by the embryo of two different hormonal signals. Failure to produce these signals may allow us to understand the different classes of returns in estrus that, in sows can be divided into three category: Regular Returns of fi rst type (between 18 and 23 days), Irregular Returns (between 24 and 38 days) and Regular Returns of second type (between 39 and 44 days). The present paper analyse the reproductive data of 2008 and 2009 of two Po Valley farms, by comparing together the various classes of return. Particular attention is given to Irregular Returns, divided in fi rst and second type, according to the transition from embryonic to fetal stage. Results showed a less stability during the embryonic stage of pregnancy related to fetal stage. The importance of studying and understanding these mechanisms could help in finding effective solutions to contain the embryonic mortality in a very sensitive stage of gestation, especially since due to the application of the law for pigs protection, running the necessity to herd together sows, gilts at the fourth week of gestation. ID nr. 4365 Arioli E, Caleffi A, Luppi° A, Bonilauri° P, Maioli° G, Dottori° M, Marco E Actinobacillus pleuropneumoniae eradication program in a pig herd Pag. 226 di 300 31/08/2011 Atti Convegno SIPAS. - Vol. 36 ( 2010). - p 402-413. - 2 bib ref Meeting Annuale della Societa' Italiana di Patologia ed Allevamento dei Suini (SIPAS) (36 : Montichiari (BS) : 25-26 Marzo 2010) The Authors describe the Actinobacillus pleuropneumoniae (APP) eradication program application results in a pig Italian herd in which APP disease had a very important economic impact reducing pig production. From 2005 to 2008 APP biovar 1 serotype 9 was isolated repeatedly from the herd and a very high seroprevalence for APP was observed. The eradication program used partial depopulation of sow and a complete depopulation of animal under 10 months of age, coupled with treatment with enrofl oxacin and fl uorfenicol in sow and tulatromycin in piglets. The antimicrobials were selected on the basis of MIC (minimal inhibitory concentration) results of APP strain isolated in the herd. The level of bio-security was considered before eradication and implemented during the program application, in order to reduce the risk of APP reinfection in the herd. Twelve months after the starting of the eradication program, the clinical and laboratory findings suggested that the APP eradication had succeeded in this herd. The comparative application and results of slaughterhouse pleurisy evaluation system (SPES) on lungs belonging to batches of pigs before and after the application of the eradication program showed a high and absent incidence of pleural lesions associated to APP infection (grade 2, 3 and 4) respectively. Production data showed an improvement after the eradication program application. ID nr. 4366 Merenzoni ML, Passamonti F, Coppola G, Maranesi M, Capelli K, Cappomazzio S, VeriniSupplizi A, Cordioli° P, Coletti M Gammaherpesvirus infections in foals International congress XVI SIVE : 29th-31st, January 2010 Marina di Carrara : proceedings / [s.l. : s.n., 2010]. - p 245-246. - 4 ref bib International congress Società Italiana Veterinari per Equini (SIVE) (16 : Marina di Carrara : 29th-31st, January 2010) ID nr. 4367 Daminelli° P, Finazzi° G, Oliverio° E, Romagnoli L, Gobbini° S, Boni° P Shelf-life assessment of Modena DOP raw ham sold in vacuum packed pieces Ind Aliment (Pinerolo). - Vol. 49 no 501 ( 2010). - p 36-41. - 4 bib ref Project PRC2007001 - Determination of quality and safety features based on predictive microbiology and risk assessment of traditional regional food products - Finazzi Dr. Guido CON DELIBERA DG N. 461 DEL 17/09/2010 SOSTITUITO DR. BONI CON DR. FINAZZI - Solo - MINSAN - 2007 - 615000,00 EUR - 01/09/2008 0.00.00 - 31/08/2010 0.00.00 - 1 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 2 - M6 - Sezione diagnostica provinciale di Mantova - Franzini Giuliana - I 3 - M9 - Sezione diagnostica provinciale di Sondrio - Bertoletti Dr.ssa Irene - I 4 - N1 - Sezione diagnostica provinciale di Bologna - Bardasi Dr.ssa Lia - I 5 - N6 - Sezione diagnostica provinciale di Piacenza - Cammi Dr.ssa Giuliana - I 6 - N7 - Sezione diagnostica provinciale di Ravenna (Lugo di Romagna) - Raffini Dr. ssa Elisabetta - I First author Daminelli, Paolo The aim of this survey was to evaluate the behaviour of Listeria monocytogenes during shelf-life of vacuum packed Modena DOP raw ham cut in pieces. For this purpose different pieces of cured ham have been externally contaminated with this microorganism, vacuum packed and stored at four different temperatures: 5°, 10°, 15°, 20°C. The results show that Listeria monocytogenes is not a risk for the consumer because its concentration decreases, during a shelflife period of 6 months, at all different storage conditions. Pag. 227 di 300 31/08/2011 ID nr. 4374 Moreno° A, Di_Trani L, Alborali° L, Vaccari G, Barbieri° I, Falcone E, Sozzi° E, Puzelli S, Ferri G, Cordioli° P First pandemic H1N1 outbreak from a pig farm in Italy Open Virol J. - Vol. 4 ( 2010). - p 57-61. - 17 bib ref Project PRF2006301 - Diagnosis and prophylaxis of avian influenza and study of the viral evolution processes and interspecies transmission - Capua Dr.ssa Ilaria - UO - MINSAN - 2006 2147000,00 EUR - 01/12/2007 0.00.00 - 30/11/2010 0.00.00 - 1 - G1 - Reparto di Virologia e Sierologia Specializzata - Moreno Martin Dr.ssa Ana - I PRF2006304 - Prevalance of avian and swine influenza virus infection among farmers and animals. - Vonesch Dr.ssa Nicoletta - UO - MINSAN - 2006 - 02/01/2008 0.00.00 - 02/01/2011 0.00.00 300000,00 EUR 1 - G2 - Reparto di Batteriologia Specializzata - Cordioli Dr. Paolo - I First author Moreno_Martin, Ana The lirst outbreak of the pandemie IIINI virus in a swine breeder farm in Italy in November 2009 was reported. Clinical signs observed in sows included fever, depression, anorexia and agalactia, while in piglets diarrhoea and sveight loss. The morbidity in sows was approximately 30% and the accumulateti mortality rate was similar with those usually reported in piggeries «10%). Virus was isolated from piglets (A/Sw/lt/290271/09) and the sequencing of the whole genome was then performed. Comparison with ali (H1N1)v sequences available in GenBank shows A/Sw/lt/290271/09 three unique amino-acid (aa) changes in P132 (S405T), PBl (K386R) and PA (K256Q), not yet associated to any well characterized phenotype markers of Influenza viruses. Ali eight aa at positions representing the socalied species specific swine-human signatures, found in both swine and in the pandemic H1Nly, are also present. The M2 protein displays the C55F and the PA protein the S409N substitutions, both corresponding to enhanced transmission phenotype markers. Phylogenetic analysis showed that the virus was genetically related to the pandemic HIN 1 virus. In addition, serological samples were collected from 40 sows, of which 20 resulted positive to the pandemic H1N1 virus by HI test proving a virus circulation in the Farm. ID nr. 4375 Maresca C, Bartoccioni S, Bellini° S, Costarelli S, De Curtis M, Faccenda L, Ferrarini N, Flamini AR, Pauselli GB, Scoccia E, Scorcelletti S, Cenci T Swine vesicular disease, updates to December 31, 2008 Sanità Pubblica Veterinaria http://spvet.it/arretrati/numero-56/webzine.html - ultimo accesso 26/05/2010. Vol. 56 ( 2009). - p 10-25 Swine vesicular disease is a disease caused by a virus of the family Picornaviridae genus Enterovirus, is characterized by high diffusibility and therefore by a strong economic and social impact. In Italy, over the past 5 years, there have been numerous outbreaks; in Umbria outbreak occurred in late 2008, involving 30 outbreaks in the Province of Perugia. ID nr. 4376 Gale P, Estrada-Pen A, Martinez M, Ulrich RG, Wilson A, Capelli G, Phipps P, De_La_Torre A, Munoz MJ, Dottori° M, Mioulet V, Fooks AR The feasibility of developing a risk assessment for the impact of climate change on the emergence of Crimean-Congo haemorrhagic fever in livestock in Europe: a Review J Appl Microbiol. - Vol. 108 ( 2010). - p 1859-1870. - 60 bib ref Impact factor: 2,098 Project EPIZONE - "Network of excellence for epizootic disease diagnosis and control - "EPIZONE". - Van Pag. 228 di 300 31/08/2011 Rijn dr. Piet - UO - CE - 2005 - 14000000,00 EUR - 01/06/2006 0.00.00 - 31/05/2011 0.00.00 17 - U3 - REPARTO AGENTI AD ALTA DIFFUSIONE E BIOTECNOLOGIE - Bellini Dr.ssa Silvia I Crimean-Congo haemorrhagic fever virus (CCHFV) is one of the most widespread of all medically important arboviruses with ticks of the Hyalomma spp. serving as the main vectors. Infection of livestock by CCHFV serves as a route of exposure to humans, as a reservoir of disease and as a route of importation. This study discusses the pathways and data requirements for a qualitative risk assessment for the emergence of CCHFV in livestock in Europe. A risk map approach is proposed based on layers that include the potential routes of release (e.g. by migrating birds carrying infected ticks) together with the main components for exposure, namely the distributions of the tick vectors, the small vertebrate host reservoirs and the livestock. A layer on landscape fragmentation serves as a surrogate for proximity of livestock to the tick cycle. Although the impact of climate change on the emergence of CCHF is not clear, comparing the distribution of risk factors in each layer currently with those predicted in the 2080s with climate change can be used to speculate how potential high-risk areas may shift. According to the risk pathway, transstadial and / or transovarial transmission in the tick vector are crucial for CCHFV spread. Vector competence and tick vector switching, however, remain critical factors for CCHFV colonization of new regions in Europe. The species of migratory bird is also an important consideration in the release assessment with greater abundance and biodiversity of ground-dwelling birds in southern Europe than in northern Europe. ID nr. 4377 Calzolari° M, Bellini R, Medici A, Bonilauri° P, Sambri V, Cavrini F, Dottori° M, Cordioli° P, Angelini P Testing the vertical transmission of chikungunya virus in Aedes albopictus using the actors of the 2007 outbreak in Italy Trop Med Int Health. - Vol. 14 suppl 2 ( 2009). - p 49 European Congress on Tropical Medicine and International Health : 6th Mediterranean Conference on Migration and Travel Health : 1st : Verona, Italy : 6-10 September 2009) Impact factor: 2,312 First author Calzolari, Mattia Experiments were conducted to determine whether transovarial transmission (TOT) of chikungunya virus (CHIKV) occurs in Aedes albopictus, the species responsible of the 2007 CHIK outbreak in Emilia-Romagna region (north-eastern Italy) – the first outbreak of this disease in a temperate country. Ae. albopictus eggs collected in the epidemic area were reared under standard laboratory conditions and F1 females were used for the study. In BL3 laboratory, females were orally exposed through a membrane to different concentrations of virus (from 104.5 to 107.3 TCID50/ml) in human washed eritrocites. Two experiments were performed using a strain of CHIKV isolated from mosquitoes collected in the epidemic area and a strain from a viremic patient coming from Cesena. After the first exposition to the viruses, the females were blood fed with two more non infected blood meals in order to obtain two more successive ovipositions. To verify the presence and the diffusion of the virus in the mosquitoes, females were sampled at different time after infection and body and legs were separately tested by Real Time PCR (RTPCR). The eggs obtained from the three gonotrophic cycles were reared in laboratory and the adults obtained were individually tested by CHIKV RTPCR. A total of 101 females took the infected blood meals. All the females fed with the two highest concentrations of CHIKV human strain showed virus diffusion, as proved by positive PCR on the mosquito legs at the end of experiment. Whereas only the females fed with the highest concentration of the CHIKV mosquito strain showed the virus diffusion, proved as above. A total progeny of 1056 adults were tested by RT-PCR for the presence of virus and three positive specimens were found in the progeny – 2 males and 1 female – all stemming from the second gonotrophic cycle. Based on these studies, infected females were capable of transmitting the virus vertically to their offspring at a low rate. If the TOT observed in our study represents the natural maximum rate of vertical female capability of transmitting the virus to their progeny, then the observed TOT rate was probably not sufficient to guarantee the maintenance of the virus in a temperate region during the winter period. This supposition could be supported by the observation of no autochthonous cases of CHIK fever in the same area during summer 2008. Pag. 229 di 300 31/08/2011 ID nr. 4378 Rubini° MN, Losio° MN, Pavoni° E, Bianchi° L, Galletti° G, Scordella G, Bresolin R, Pongolini° S, Piano A, Serratone P Occurrence of Vibrio spp. in shellfish harvested from Emilia Romagna coast (North-western Adriatic Sea, Italy) 7th International Conference on Molluscan Shellfish Safety : Nantes, France 14-19 June 2009 : conference handbook / [s.n. : s.l., 2009]. - p 193 International Conference on Molluscan Shellfish Safety (7th : Nantes, France : 14-19 June 2009) Project PRF2006303 - Food quality and safety of animal products, especially related to seafood, seafood process and distribution chain - Cancellotti dr. Maria Francesco - UO - MINSAN - 2006 1248000,00 EUR - 15/12/2007 0.00.00 - 14/12/2010 0.00.00 - 1 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Losio Dr.ssa Marina Nadia - I First author Rubini, Silva This work aimed at determining the contamination of shellfish harvested in Northern Italy with Vibrio spp.. This study has been carried out in the province of Ferrara since 2006. The monitoring area is situated in the Northwestern Adriatic Sea, from the mouth of Po River to the mouth of Reno River. A total of 117 samples, coliected in 31 stations, were analysed. In addition physico-chemical parameters of the harvesting water were also measured (salinity and water temperature). Vibrio spp. was isolated in 85,5% of the samples. Only 17 samples (14,5%) resulted negative for Vibrio spp.. V. alginolyticus was the most frequently isolated (70,9%), followed by V. parahaemolyticus (38,5%) and V. cholerae (10,3%). Many samples (32,5%) contained two or more species of Vibrio spp. The analysis included the compulsory microbiological parameters Escherichia coli and Salmonella spp., according to European legislation (Reg. EU 853/2004, 85412004 and 144112007), as well as the determination of the contamination with Vibrio spp.. The isolates were characterized by classical biochemical tests, API 20E (bioMérieux), and PCR technique based on specie-specific and pathogenic genes: toxR, tl, tdh, trh for V. parahaemolyticus, toxR, hlyA, ctxA, tcpl for V. cholerae and vvha and viuB for V. vulnificus. One V. parahaemolyticus strain was trh+, and two were tdh+. Multiplex PCR was also employed to research V. cholerae-virulence associated factors as cholera toxin (ctxA gene), hemolysin (hlyA gene), non 01 heat-stable enterotoxin (stn/sto gene) and outer membrane protein (tcpA gene). Although almost ali the analysed molluscs complied with the UE legislation, potential human pathogens were detected in a wide range of samples. These results evidence that the presence of Vibrio spp. in shellfish is common and confirm the need for a specific shellfish monitoring pian to identify the presence and the effective role of potential pathogen Vibrio species to protect public health. ID nr. 4379 Croci L, Losio° MN, Arcangeli G, Pepe T, Pavoni° E, Magnabosco C, Ventrone J, Suffredini E Survey of enteric viruses presence in seafood products in Italy (1999-2008) 7th International Conference on Molluscan Shellfish Safety : Nantes, France 14-19 June 2009 : Conference handbook / [s.n. : s.l., 2009]. - p 51 International Conference on Molluscan Shellfish Safety (7th : Nantes, France : 14-19 June 2009) Project PRF2006303 - Food quality and safety of animal products, especially related to seafood, seafood process and distribution chain - Cancellotti dr. Maria Francesco - UO - MINSAN - 2006 1248000,00 EUR - 15/12/2007 0.00.00 - 14/12/2010 0.00.00 - 1 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Losio Dr.ssa Marina Nadia - I First author Rubini, Silva Enteric virus contamination in shellfish has been increasingly recognised as a risk for public health. In Italy, in the last decade, the surveiliance of enteric virus in seafood products has progressively joined the official controls required by the European legislation. From 1999, after the first pilot study on Hepatitis A (HAV) in Pag. 230 di 300 31/08/2011 shellfish at market retail in Puglia, the screening has enlarged to Norovirus (NoV), Enterovirus (EV, year 2001) and Rotavirus (RV, 2003). In the period 1999-2008, with progressive improvements in the detection and characterization methods (conventional PCR, real-time PCR, sequencing, etc.), were analysed between 1200 (RV) and 2500 (HAV) samples, depending on the virus considered. The monitoring included shellfish at consumption level and at production stage (sampling from class A and B harvesting areas in Adriatic and Tyrrhenian sea), national and imported products, products suspected for epidemics, as well as prepared and treated seafood products. Overall, at retail level enteric virus contamination involved approximately 5% of the samples (5.8% with HAV, 5.2% EV, 2.9% NoV and 0.9% RV), while higher contamination was detected in samples from ciass B harvesting areas. Genotypes most frequently detected were 1A and 113 for HAV and GlIA, Glib, G11.1 and G11.2 for NoV. For cuitivable viruses, presente of infective virus was confirmed in a low percentage of the positive samples (5.4% for HAV and 13.2% for EV). These data provide a preliminary picture on the circulation level of different enteric viruses in seafood products. Further systematic studies on harvesting areas, carried on with the use of standardized methods and taking into account the environmental conditions influencing virus survival and spread, are needed to evaluate the safety problem of virai contamination in shellfish. This work was partially supported by the Integrated Research Project SEAFOODpIus (Sixth Framework Programme - contract N° FOOD-CT-2004-506359). ID nr. 4380 Galmozzi G, Muraro M, Vandoni S, Bonfanti M, Faccini° S, Rosignoli° C, Sgoifo_Rossi CA Treatment regimes of respiratory disease in newly received feedlot cattle Large Anim Rev. - Vol. 15 no 6 ( 2009). - p 257-266.- 29 ref bib Four trials were carried out to investigate the efficiency of gamithromycin in beef cattle's bovine respiratory disease (BRD) prevention and therapy. The gamithromycin is characterized by fast absorption and distribution to target tissue, notably the lung. Three studies were conducted on the preventive efficacy using an untreated control (trial 1), a long-acting oxytetracycline formulation (trial 2) and tulathromycin (trial 3). The responses of tulathromycin and Gamithromycin were compared in the therapeutic study (trial 4). Evaluations included incidence of morbidity, mortality, re-treatments and problem animals (removed to hospital pen) over the 14 days subsequent to treatment and shortterm growth rates over the first 30 days. Preventive treatment with Gamithromycin significantly reduced the morbidity due to BRD by 86%, 86% and 35% compared to the control groups in trials 1, 2 and 3 respectively. The proportion of problem animals was significantly less in the Gamithromycin group compared to the controls in trial 2. In the therapeutic trial, the incidence of animal that required re-treatment during the 14 days following treatment was 30,8% in the Gamithromycin group, in which there were no problem animals, compared to 81,8% in the positive control group, in which problem animals incidence was 27,7% (significative differences). Growth rates were significantly less in the control animals in trial 1. Overall, these results confirm the usefulness of Gamithromycin in BRD treatment and prevention and provide valuable information about BRD economic balance\. ID nr. 4381 Bonardi S, Paris A, Salmi F, Bacci C, Floriani ME, Bignami S, D'Incau° M, Tagliabue° S, Brindani F The role of pigs as pharyngeal carriers of human pathogenic Yersinia enterocolitica strains AIVI Rivista dell’Associazione Italiana Veterinari Igienisti. - Vol. 3 ( 2009). - p 51-54. - 23 bib ref From March 2007 to January 2008, a total of 170 pigs at slaughter were tested for Y. enterocolitica contamination in tonsils tissue. The animals carne from 125 different farms located in four regions of Northern Italy Y. enterocolitica was isolated from 19 out of 170 (11.2%) tonsils samples. The prevalent bio-serotype (68.4%) was 4/0:3, followed by bioserotypes 1A/0:8 (15.8%), IA/0:5 (10.5%) and 4/0:8 (5.2%). Among bioserotype 4/0:3, several strains possessed yadA, ail and ystA virulente genes. Pag. 231 di 300 31/08/2011 ID nr. 4382 Bellini R, Bonilauri° P, Angelini P, Albieri A, Veronesi R, Calzolari° M, Dottori° M, Tamba° M, Venturi L, Venturelli C, Borrini B, Martini E Evidence of persistant activity of West Nile Virus in the Po plain area of Italy 5th International Congress of Vector Ecology : 11-16 October 2009 Delek, Antalya, Turkey : proceedings / [s.l : s.n., 2009]. - p 194 International Congress of Vector Ecology (5. : Delek, Antalya, Turkey : 11-16 October 2009) During the late summer 2008 a large epidemic of West Nile Virus occurred in North-East Italy involving an area of more than 7,000 km' in 3 Regions (Lombardia, Veneto, Emilia-Romagna). This was the largest epidemie ever recorded in the country. Following the first evidence in equine and birds an active entomological surveillance plan was started by the Emilia-Romagna Surveillance Group on Vectorial Disease. Mosquito collection was conducted by C02 baited traps specifically positioned in 78 sites. Totally in the period September 3 - October 23. more than 20.000 mosquitoes of which 53% Culex pipiens. 43% Aedes easpius. 2% Aedes albopictus, 1% Aedes vexans, 0.2% Anopheles maculipennis, 0.02% Culex modest us, 0.02% Culiseta annulata were analyzed by RT-PCR. Two pools of Cx.pipiens collected at the end of September in different localities teak teed positive for WN virus. In the 2009 summer the surveillance was activated focusing on sentinel equine, residential birds (corvidis) and mosquitoes. Mosquito collection was conducted in the period week 25-42 by CO2 traps in 75 fixed stations with weekly to monthly periodicity. Totally more than 150,000 mosquitoes were collected and analyzed. Starting from the end of July WN positivity was detected in Culex pipiens pools, magpie (Pica pica), and equines in and around the WN interested area 2008. No human cases were registered at the time of abstract submission (August 31). The persistence of WN activity in the Po plain for two consecutive years indicates that the area is becoming suitable for WN establishment and possible endemicity, stressing the need to organize standard surveillance measures aimed to the early detection of WN activity and risk evaluation in public health. ID nr. 4384 Circella E, Pennelli D, Tagliabue° S, Ceruti R, Giovanardi D, Camarda A Virulence - associated genes in Avian Pathogenic Escherichia coli of turkey Ital J Anim Sci. - Vol. 8 no 4 ( 2009). - p 775-779. - 7 bib ref Impact factor: 0,132 50 Escherichia coli (APEC-Avian Pathogenic Escherichia coli) strains and 15 E. coli (AFEC-Avian Faecal Escherichia coli) from turkeys affected by colibacillosis and from healthy turkeys were tested for the presence of eight different virulence-associated genes. Besides, APEC were serotyped. O78 has been the most detected serotyped. The presence of the tested virulence genes was prevalently related to the APEC isolates. With reference to serogroup, all the tested O78 resulted iss and irp2 positive. Besides, the e cva/cvi were respectively present in 88.9 and 83.3% of O78. Nevertheless, the finding of a not type able strains equipped with all the eight tested virulence genes among the APEC isolates suggest the importance of a careful and complete characterisation of the isolate to evaluate the real potential pathogenic attitude of the bacterium. ID nr. 4390 Ferrari° M, Renzi° S, Dessì S, Diaferia G, De_Blasio P, Biunno I New cryosolutions and cryopreservation strategies used in a Mesenchymal Stem Cells (MSCs) bank Diversity in biobanking: embracing differences, harnessing commonalities : ISBER 2010 Annual Meeting & Exhibits : May 11-14, 2010 Rotterdam, Netherlands / [s.l. : s.n., 2010]. - p 45 ISBER 2010 Annual Meeting & Exhibits : Rotterdam, Netherlands : May 11-14, 2010) First author Ferrari, Maura Pag. 232 di 300 31/08/2011 Optimization of cryopreservation protocols to maintain the quality of MSCs is an important task for stem cells banks. To allow long-term storage, MSCs are slowly cooled and stored at -196°C in liquid nitrogen. Unfortunately, despite the use of well standardized protocols, the percentage of living cells after thawing is low. In order to use MSCs for regenerative medicine, it is important to find a cryopreservation solution able not only to reduce cell death but also free of anima] proteins, in order to reduce zoonoses risk. Materials and Methods - Rat, sheep (models) and horses MSCs were isolated from bone marrow and adipose tissue and in vitro cultured. Each MSCs sample was frozen in three different cryoprotectant solutions (BioLife Solutions). After thawing and re-seeding, cell viability was assessed for three consecutive days and cell counts were performed at 24-h intervals. Results - Cell viability differences were observed not only among the three different cryopreservation reagents used but also according to the species from which the MSCs were derived. Equine MSCs were much more sensitive to the freezing process than rat and sheep derived cells. Conclusions - The possibility for long-term storage for MSCs and other types of cells in a frozen state which are suitable for immediate clinical application could provide immense benefit in regenerative medicine. Moreover, identification of more effective cryoprotectant solutions deprived of animal proteins could improve the quality of the freeze/thaw process and reduce cost/benefit ratio. ID nr. 4391 Ferrari° M, Renzi° S, Sesso L, Cornali M, Carlin S Banking of mesenchymal stem cells for rendon repair in race horses Diversity in biobanking : embracing differences, harnessing commonalities : ISBER 2010 Annual Meeting & Exhibits : May 11-14, 2010 Rotterdam, Netherlands / [s.l. : s.n., 2010]. - p 36 ISBER 2010 Annual Meeting & Exhibits : Rotterdam, Netherlands : May 11-14, 2010) First author Ferrari, Maura Mesenchymal stem cells (MSCs) are frequently used in veterinary medicine to repair orthopaedic injuries, particularly in race horses. MSCs can be isolated from dìfferent tissues, but the most commonly used for ciinical applications are derived from adipose tissue or bone marrow. A branch of our cell culture bank was dedicated to the storage of MSCs, in order to treat tendon injuries in horses. Methods -MSCs have been isolated from fat tissue and bone marrow, propagated in vitro not more than four passages and tested for multi-potentiality. Before freezing, every batch was subjected to safety controls. Only the batches free from contaminations (viruses, eubacteria and mycoplasma) were banked. MSCs were used not only for autologous but also for allogeneic implantation. For implantation, celis were suspended in autologous Platelet Rich Plasma (PRP) and inoculated into the damaged tendon. After MSCs treatment, horses were subjected to a rehabilitative period and to ecographic controls. A sample of every batch was conserved in the bank to be preserved either for a subsequent treatment or in case of complaint. Results - Currently the MSC bank consists of 100 batches of celis. Each ampoule contains an average of 7x106 MSCs. Ecographic examinations showed good tendon regeneration and some of the treated animals have started competitions. Conclusions - The MSC bank at IZSLER is organized in accordance with quality parameters. The prepared celis have shown to be useful for clinical application regarding tendon repair. ID nr. 4394 Razzuoli° E, Dotti° S, Archetti° IL, Amadori° M Clinical chemistry parameters of piglets at weaning are modulated by an oral, low-dose interferon-a treatment Atti Soc Ital Sci Vet. - Vol. 63 ( 2009). - cdrom p 447-449. - 6 bib ref Convegno Nazionale della Societa' Italiana delle Scienze Veterinarie (SISVET) (63 : Udine : 16-18 Settembre 2009) First author Razzuoli, Elisabetta Clinical chemistry parameters were investigated in piglets weaned at 22 and 28 days. The effects of an oral, low-dose interferon (IFN)-a treatment at weaning were evaluated as well. The trial was carried out on 59 Pag. 233 di 300 31/08/2011 piglets of the same farm, allocated to three groups: the first and the second groups were weaned at 28 and 22 days, respectively; the third one was weaned at 22 days and treated with IFN-a. Results indicate that early weaning at 22 days implies higher efforts of environmental adaptation. In such animals an oral, low-dose IFNa treatment can effectively modulate the circuits of the inflammatory response, thus improving the homeostatic response to the early weaning stressor. ID nr. 4395 Vanni M, Intorre L, Barigazzi° G, Dottori° M Antimicrobial susceptibility of 925 actinobacillus pleuropneumoniae strains isolated in swine from 1994 to 2008 Atti Soc Ital Sci Vet. - Vol. 63 ( 2009). - cdrom p 214-216. - 7 bib ref Convegno Nazionale della Societa' Italiana delle Scienze Veterinarie (SISVET) (63 : Udine : 16-18 Settembre 2009) The susceptibility to 26 antimicrobial agents was determined in 925 Actinobacillus pleuropneumoniae strains isolated in swine from 1994 to 2008. Susceptibility to antimicrobials normally showing good activity, such as florfenicol, fluoroquinolones and cephalosporins, remained relatively high in the considered period. However, the study highlighted the occurrence of resistance towards therapeutic antimicrobials, such as penicillins, tetracyclines, macrolides and cotrimoxazole. The emergence of A. pleuropneumoniae resistant to currently available drugs underlines the importance of encouraging the prudent use of antimicrobials in swine pleuropneumonia treatment. ID nr. 4396 Dotti° S, Villa° R, Candotti° P, Lombardo° T, Vinco° LJ, Ferrari° M Humoral and cell-mediated response evaluation in Duroc pigs after experimental infection with Porcine respiratory and Reproductive syndrome virus (PRRSV) Atti Soc Ital Sci Vet. - Vol. 63 ( 2009). - cdrom p 123-125. - 4 bib ref Convegno Nazionale della Societa' Italiana delle Scienze Veterinarie (SISVET) (63 : Udine : 16-18 Settembre 2009) First author Dotti, Silvia The Respiratory and Reproductive Syndrome Virus (PRRSV) is one of the most studied virus in swine pathology. At now, the knowledges about the real interaction virus-host are not clear and incomplete; moreover, there are a lot of problems to reduce the economic losses in growing either in nursery phase. The aim of this study was to evaluate the susceptibility to PRRSV infection of a pure-breed pig line, Duroc, based on clinical, virological and immunological investigations. Ten 30 days old PRRS-free pigs were infected with an Italian strain of PRRSV, BS/114/2000; others two animals were housed in a separate unit as control group. The blood of all animals were collected every week and they were killed after 70 days. This experiment is the latest step of a project that aims to investigate the possible different susceptibility between Large White, Landrace and Duroc pure-breed lines to the PRRS virus. ID nr. 4398 Menotta° S, D’antonio° M, Diegoli G, Montella L, Raccanelli S, Fedrizzi° G Depletion study of PCDD/Fs and dioxin-like PCBs concentrations in contaminated home-produced eggs: preliminary study Anal Chim Acta. - Vol. 672 ( 2010). - p 50-54 - 31 bib ref Impact factor: 3,757 Pag. 234 di 300 31/08/2011 First author Menotta, Simonetta The presence of Zeranol (a-zearalanol) in urine samples due to natural contaminantion or illegal treatment is under debate within the European Union. The simultaneous determination of zeranol, its epimer taleranol (ßzearalanol), zearalanone and the structurally-related mycotoxin zearalenone with the corresponding a- and ßzearalenol metabolites appears to be critical in deciding whether an illegal use has occurred. The aim of this study is to develop and validate a simple analytical procedure applicable to bovine and swine urine samples for the determination of all six resorcylic acid lactones. After an enzymatic deconjugation, the urine was subjected to a one-step cleanup on a commercially available immunoaffinity chromatography cartridge. The analytes were detected by liquid chromatography-negative-ion electrospray tandem mass spectrometry using deuterium-labelled internal standards. The method was validated as a quantitative confirmatory method according to European Commission Decision 2002/657/EC. The evaluated parameters were: linearity, specificity, precision (repeatability and intra-laboratory reproducibility), recovery, decision limit, detection capability and ruggedness. The decision limits (CCa) obtained, were between 0.56 and 0.68 µg L-1; recovery above 66 % for all the analytes. Repeatability was between 1.4 % and 5.3 % and within-laboratory reproducibility between 1.9 % and 16.1 % for the six resorcylic acid lactones. ID nr. 4399 Menotta° S, D'Antonio° M, Santachiara F, Squintani G, Bassoli M, Boschetti L, Fedrizzi° G Monitoring of DL PCBs and NDL PCBs in fishes caught from Po river in Emilia Romagna Region-Italy 6th International PCB Workshop : May 30 - June 2 2010, Visby, Sweden / [s.l. : s.n., 2010]. - p 140-141 International PCB Workshop (6th : Visby, Sweden : May 30 - June 2, 2010) First author Menotta, Simonetta ID nr. 4400 Fedrizzi° G, D'Antonio° M, Scandurra° S, Elanco° EL, Masotti° D, Padovani E, Vitali A, Menotta° S Distribution study of PCBs indicators in bovine organs and tissues from a contaminated farm 6th International PCB Workshop : May 30 June 2 2010, Visby, Sweden / [s.l. : s.n., 2010]. - p 143 International PCB Workshop (6th : Visby, Sweden : May 30 June 2 2010) First author Fedrizzi, Giorgio ID nr. 4401 Scordella G, Rubini° S, Bresolin R, Bolognesi° E, Menotta° S Dioxins and Dioxin-like compounds in seafood: the lack of a shared monitoring plan World Aquaculture 2009, a blue revolution to feed the world : September 25-29, 2009 Veracruz, Mexico / World Aquaculture Society. - [s.l. : s.n, 2009]. - p 787 World Aquaculture 2009 : Veracruz, Mexico : September 25-29, 2009) Persistent organic pollutants (POPs), such as dioxins, furans and PCBs (polychlorinated biphenyls) are a group of toxic and persistent chemicals whose effects on human health and on the environment include dermal toxicity, immunotoxicity, reproductive effects and teratogenicity, endocrine disrupting effects and carcinogenicity (Matthews et al. , 2008). They are produced in small quantities in the manufacture of several chlorinated compounds, in chlorine bleaching in pulp and paper mills and in processes of incineration and combustion (Carro et al., 2008). The increasing presence in the environment of these substances, coupled with several accidents (Yusho-Japan, Yu-cheng-Taiwan and Seveso-Italy), Have triggered a Jeep concern from the international community for their reduction and control. Since dioxins are lipophilic compounds, they accumulate in the food chain (De Mul et al., 2008). Bioaccumulation is continuing along the trophic chain and releases go on from landfills, polluted soils or sediments. The dietary exposure to dioxins and dioxin-like PCBs, exceeds the Tolerable Weekly Intake (TWI) or the Tolerable Daily Intake (TDI) for a considerable part of the European population. The Scientific Committee on Food (SCF) of the EU adopted since 2001 an Pag. 235 di 300 31/08/2011 opinion on the Risk Assessment of dioxins and dioxin-like PCBs in food. The levels of dioxins and dioxin-like contaminants in fish and humans have decreased considerably during the past three decades, however the dietary intakes of these compounds vary considerably between countries and between population groups within countries. Limited data are still available concerning the levels and dietary intakes of POPs by seafood consumption in many regions of the world. Because, in genera, fish and seafood are the food group that show the highest levels of PCBs, is important to monitor these goods, also because fisheries products play an important role in the European diet as a valuable source of protein and as a healthy food. The low biodegradation rate of POPs in bivalve molluscs, makes that these chemicals are found in higher levels than other marine organisms. Mussels and oysters are commonly used as bioindicators of these compounds, because they may accumulate contaminants in their tissues higher concentrations than in the marine water. From 2004 to 2008, the Dioxins Laboratory of the Marketable Animal Origin Foods of the Bologna IZSLER had analyzed 33 samples of bivalve molluscs (coming from the North West Adriatic Sea; Italy), searching for PCBs (18 congenera), Dioxins and PCB-Dioxin-like compounds. All the resulting data were below the EU risk levels. Anyway many world references report hazard ratios for POPs registered on seafood coming from other locations, indicating that these compounds may pose some health risks to the local population. A real shared monitoring pain of these compounds should be improved in the market of seafood, supplying the consumer also with information on the TDI and the TWI. ID nr. 4403 Menotta° S, D’Antonio° M, Diegoli G, Montella L, Raccanelli S, Fedrizzi° G Depletion study of PCDD/Fs and dioxin-like PCBs concentrations in contaminated home-produced eggs: Preliminary study 4th International symposium on recent advances in food analysis : November 4–6, 2009, Prague, Czech Republic : book of abstract / edited by Jana Pulkrabova, Marie Suchanova and Monika Tomaniova. - [s.l. : s.n., c2009]. - Lm-22 International symposium on recent advances in food analysis (4th : Prague, Czech Republic : November 4–6, 2009) First author Menotta, Simonetta Dioxins (PCDD/Fs) and polychlorobyphenyls (PCB) are ubiquitous environmental contaminants. They are very persistent to chemical degradation, and accumulate in the food chain. The contamination of food products with dioxins and PCBs is a well studied issue, because food is generally considered as the major source of dioxin intake for humans. Eggs, in particular, contain an high fat percentage, and may accumulate persistent organic pollutants such as dioxin and PCBs. In Italy, the Regional Monitoring Plan used in the field for 2009, has also included the control of environmental pollutants in small egg producers (so called homeproduced eggs). Following an irregular result, a private owner was recruited on a voluntary basis, and his birds, that were contaminated on a first sample (12 hens), were transferred from their free-range farming system into a lab controlled environment. Every day (from day 0 to 60) total eggs were collected: most of them were analysed for the evaluation of dioxins, dioxin like PCBs (DL PCBs), and non dioxin like PCBs (NDL PCBs six congeners) levels. The number of lay-eggs varied from four to 12 in a single day. All the eggs from each week were homogenised and lyophilised. The fat fraction was extracted by accelerated solvent extraction (ASE). The dioxins and PCBs contents were determined according to EPA 1613/94 rev B method by gas chromatographic determination, coupled with high resolution mass spectrometry. The content of PCDD/F, DL PCB and NDL PCB was evaluated by mean from week to week. The concentration of dioxins was lower than DL PCBs (2,5 pgTEQ/g of fat against 4,5 pgTEQ/g), but we observed the same depletion trend for both. After a steady level for the first two weeks, there was a small depletion until the sixth week, were PCDD/F and DL PCB showed similar concentration. Then, while a continuous depletion was seen for PCDD/F concentration, DL PCB levels decreased very slowly, and reached about 2 pgTEQ/g of fat. On the opposite, NDL PCBs had a different course: there was an increase between week six and seven, but the mean levels remained very low (about 20 ng/g of fat). The dioxins, and sum of dioxin and DL PCBs concentration were below the fixed European limits ( i.e. 3 pgTEQ/g of fat for dioxins and 6 pgTEQ/g of fat for sum of dioxins and DL PCB), beginning from the third week of trial, because of their removal from the contaminated environment. Pag. 236 di 300 31/08/2011 ID nr. 4404 Bacci ML, Fantinati P, Alborali° GL, Zannoni A, Penazzi P, Bernardini C, Forni M, Ostanello F Multilevel approach to study boar fertility in commercial farm 60th Annual meeting of the european association for animal production : August 24th - 27th 2009 Barcelona Spain : book of abstracts no.15 / [s.l. : s.n., 2009]. - p 452 Annual meeting of the european association for animal production (60th : Barcelona, Spain : August 24th 27th, 2009) Semen quality assessment represents a fundamental step for obtaining successful artificial insemination (AI) in pig industries, however the decline in boar fertility, non related to apparent causes, is a common and economically relevant problem. In commercial settings, the ejaculates were evaluated at collection, but traditional quality estimates are not able to foretell fertility outcome. New fertility parameters have been therefore studied in vitro (Popwell and Flowers, 2004; Turba et al., 2007) and compared with traditional ones. The present research aimed to study the causes of fertility decline in boars not bound to clinical signs of disease, utilizing various approaches: study of in vitro fertility with traditional and new parameters, study of in vivo fertility and study of health status of subjects. Therefore nine boars of proven fertility have been monitored for 5 months from March and sperm and blood samples have been repeatedly collected for seminal and serological evaluations. At this level we researched ADV, PRRSV, PCV2, SIV (H1N1, H2N1, H3N2) antibodies. In order to evaluate boar fertility we utilized in vitro (motility, viability, acrosome condition, mitochondrial membrane potential, etc.), as well as in vivo parameters (Farrowing Rate and Litter Size outcome of 230 Artificial Insemination). The low percentage (<5%) of damaged acrosome inan ejaculate significantly correlates with high LS. On the contrary no correlations have been found among seroconversions for PRRSV (2 boars) and for ADV (2 boars) and in vivo fertility as well as positivity for SIV (H1N2 strain) (4 boars). This research was supported by grants from Bologna University (RFO 60%)Semen quality assessment represents a fundamental step for obtaining successful artificial insemination (AI) in pig industries, however the decline in boar fertility, non related to apparent causes, is a common and economically relevant problem. In commercial settings, the ejaculates were evaluated at collection, but traditional quality estimates are not able to foretell fertility outcome. New fertility parameters have been therefore studied in vitro (Popwell and Flowers, 2004; Turba et al., 2007) and compared with traditional ones. The present research aimed to study the causes of fertility decline in boars not bound to clinical signs of disease, utilizing various approaches: study of in vitro fertility with traditional and new parameters, study of in vivo fertility and study of health status of subjects. Therefore nine boars of proven fertility have been monitored for 5 months from March and sperm and blood samples have been repeatedly collected for seminal and serological evaluations. At this level we researched ADV, PRRSV, PCV2, SIV (H1N1, H2N1, H3N2) antibodies. In order to evaluate boar fertility we utilized in vitro (motility, viability, acrosome condition, mitochondrial membrane potential, etc.), as well as in vivo parameters (Farrowing Rate and Litter Size outcome of 230 Artificial Insemination). The low percentage (<5%) of damaged acrosome inan ejaculate significantly correlates with high LS. On the contrary no correlations have been found among seroconversions for PRRSV (2 boars) and for ADV (2 boars) and in vivo fertility as well as positivity for SIV (H1N2 strain) (4 boars). This research was supported by grants from Bologna University (RFO 60%). ID nr. 4406 Harouna A, Zecchini M, Locatelli C, Scaccabarozzi L, Cattaneo C, Amadou A, Bronzo V, Marichatou H, Boettcher PJ, Zanoni° MG, Alborali° L, Moroni P Milk hygiene and udder health in the periurban area of Hamdallaye, Niger Trop Med Int Health. - Vol. 41 ( 2009). - p 705-710. - 16 bib ref Impact factor: 2,312 The prevalence of intra-mammary infections in dairy herds was studied in Hamdallaye, Niger. A total of 956 milk samples were collected in 2007 from 239 lactating cows of four local breeds in eight traditional herds; the first sampling was undertaken in the dry season at morning milking, and the second in the rainy season at evening milking. Staphylococcus aureus, Coagulase-Negative Staphylococci (CNS) and environmental Pag. 237 di 300 31/08/2011 microorganisms were detected in significantly (p<0.05) more samples in the rainy season, 55.2%, than in the dry season, 27.1%. Statistically significant (P<0.05) differences in prevalence were observed among herds and according to lactation number. Infections were assigned to four classes, according to the major pathogen, and the respective mean somatic cell counts during the dry season were: S. aureus, 775×103 cells/ml; CNS, 447× 103 cells/ml; environmental microorganisms, 407×103 cells/ml; and non-infected, 262×103 cells/ml. Most of the tested strains were sensitive to antibiotics, and selected strains of S. aureus (n=15) were negative to the multiplex PCR tests for production of enterotoxins. ID nr. 4407 Angelucci G, Fenza A, Viale I, Rolesu S, Alborali° PL, Salati F Evolution of finfish culture and diseases in Sardinia, Italy 14th EAFP International Conference : Diseases of fish and shellfish : September 14-19, 2009 Prague / [s.n. : s.l., 2009]. - p 375 EAFP International Conference (14th : Prague : September 14-19, 2009) Anguilla anguilla, rainbow trout Oncorhynchus mykiss and, recently, meagre Argyrosomus regius are now reared in sea-cages and/or in land-based plants. In particular, the production of reared fish in Sardinia has increased from 300 t in 1994 to 1,000 tons in 2000 to about 3,000 tons in 2006 and, keeping the same production level until today, raised the highest place among sea-cages production in Italian aquaculture.During this period, the diseases showed a parallel increase together with the intensive production. Regarding bacterial diseases of marine fish during the period 2001-200a, the highest incidence of infections was caused by TenacibacuIum maritimurn responsible for marine flexibacteriosis; moreover, outbreaks of diseases caused by Vibrio spp., Photobacteriurn (Pasteurella) piscicida, and Schewanella (Pseudomonas) anguilliseptica occurred almost every year. In cultured ell, infection by Flexibacter colurnnaris, responsible for freshwater flexibacteriosis was the most often diagnosed bacterial disease. Among viral diseases, Viral Encephalopathy and Retinopathy (VER or VNN) of sea bass and Lymphocystis of sea bream were irregularly recorded. Regarding parasitic diseases, Arnyloodiniurn ocellaturn and Ceratornyxa sp. were constantly reported in marine fish. However, Atrispinum sp. caused heavy losses particularly in Sharp-snouted bream and, in the last years, Sparicotyle sp. infections hit cultured Gilthead sea bream and meagre with high mortalities. Moreover, Dactylogyrus sp. and Anguillicola sp. were constantly recorded in cultured eel.. ID nr. 4408 Chiari° M, Zanoni° MG, D’Incau° M, Salogni° C, Alborali° B Isolation of Salmonella spp. in wild boars (sus scrofa) from Northern Italy III Convegno Nazionale di Ecopatologia della Fauna Torino SIEF, 15-17 Ottobre 2009 : atti / [s.l. : s.n., 2009]. Convegno Nazionale di Ecopatologia della Fauna (3. : Torino : 15-17 Ottobre 2009) First author Chiari, Mario The health status of wildlife is a common concern of different stakeholders: the veterinary and public services for the increasing number of infectious diseases and zoonosis, shared between wildlife and domestic animals; the public administrators for management reasons; and the hunters for a direct interest in hunter-harvesting. Since 1997 a health monitoring on wildlife in Brescia Province has been applied with the informal cooperation of the hunters’ associations. Starting on hunting season 2006-07, an agreement with the common aim to a better understanding of health and disease in free-ranging wildlife was officially established between the veterinary services, the public administrators and the hunter associations. The faeces and viscera collected by the hunters during three hunting seasons (starting on 2006-07) were delivered to the Brescia laboratory for a full set of diagnostic examinations. In particular, Salmonella was isolated by faeces following the methods reported in “Annex D ISO 6579:2002”, mandatory in the implementation of Salmonella monitoring and control plan for primary productions. This method was applied in parallel with home-made isolation procedure based on an enrichment phase (Rappaport-Vassiliadis Broth) and plating (Hecktoen enteric agar). Salmonella Pag. 238 di 300 31/08/2011 identification was performed using biochemical tests and serotyping. Isolated strains of S. typhimurium and S. enteritidis were also phagetyped. From 1228 investigated samples, 292 strains of salmonella were isolated. The results revealed a significant prevalence of isolations of serotypes pathogenic to humans as well as serotypes not considered pathogenic. Figures on serotypes isolated from wild boars do not reflect prevalence data on the isolates in domestic species in our territory. The most frequently detected salmonella were serotypes Coeln, Ball and Thyphimurium of S. enterica ssp. enterica. Other isolates, less frequently detected, belong to S. enterica ssp. diarizonae and S. enterica ssp. houtenae, which are usually found only in coldblooded animals. Over 50% of S. thyphimurium isolates were phagotyped as DT104. Salmonella typhimurium, a potential risk to human health, is sporadically but constantly detected in wild boar population. This aspect, in conjunction with the large size of population of wild boars in Brescia province and the increasing numbers of hunters specialized on this species, make the veterinary inspection and laboratory control of hunted wild boars an absolute need in the future hunting seasons. ID nr. 4410 Carra° E, Bassi° S, Bergamini° F, Sarti M, Colmegna° S, D’Incau° M, Fontana MR, Lambertini A, Pongolini° S Salmonella enterica subsp. enterica serovar Manhattan in humans: a collection of strains makes the difference International Symposium Salmonella and Salmonellosis : June 28-30, 2010 Saint-Malo, France : proceedings / [s.l. : s.p., 2010]. - p 389-390 International Symposium Salmonella and Salmonellosis : Saint-Malo, France : June, 28-30, 2010) First author Carra, Elena ID nr. 4411 Cecchinato M, Ceolin C, Busani L, Dalla_Pozza M, Terregino C, Moreno° A, Bonfanti L, Marangon S Low pathogenicity avian influenza in Italy during 2007 and 2008: epidemiology and control Avian Dis. - Vol. 54 n. 1 ( 2010). - p. 323-328. - 20 bib ref Impact factor: 2,003 Project PRF2006304 - Prevalance of avian and swine influenza virus infection among farmers and animals. - Vonesch Dr.ssa Nicoletta - UO - MINSAN - 2006 - 300000,00 EUR - 02/01/2008 0.00.00 02/01/2011 0.00.00 - 1 - G2 - Reparto di Batteriologia Specializzata - Cordioli Dr. Paolo - I Since 1999, the Italian poultry production system has experienced several outbreaks of avian influenza (AI), mainly located in northeastern Italy. This paper describes the low pathogenicity (LP) AI outbreaks detected during the surveillance activities implemented in 2007–08. From May to October 2007, ten rural and hobby poultry farms were infected by an LPAI virus of the H7N3 subtype. In August–October 2007, the H7N3 LPAI virus was introduced into the industrial poultry sector with the involvement of six meat turkey farms. Phylogenetic analysis of the hemagglutinin gene indicated that all but one of the H7N3 virus strains had a high level of homology (98.7%–99.8%). Furthermore, in August 2007, an LPAI H5N2 virus was identified in a freerange geese and duck breeder flock. The hemagglutinin and neuraminidase genes showed a high level of homology (99.8% and 99.9%, respectively) with H5N2 LPAI viruses isolated from mallards in July 2007 in the same area, suggesting a possible introduction from the wild reservoir. All the birds (in total 129,386) on the infected poultry farms were culled. The prompt implementation of AI control measures, including the enforcement of a targeted emergency vaccination plan, allowed the rapid eradication of infection. In 2008, three LPAI viruses (two H7N1 and one H5N1) were identified in dealer/rural farms. The surveillance activity implemented in this area allowed the prompt detection of LPAI viruses of the H5 and H7 subtypes in the rural sector, which, as observed in the 2007 epidemic, might be the source of infection for industrial poultry.. ID nr. 4413 Pag. 239 di 300 31/08/2011 Daminelli° P, Finazzi° G, De_Nadai° V, Oliverio° E, Ducoli° S, Bonometti° E, Gregorelli° M, Boni° P Behaviour of Listeria monocytogenes in delicatessen products: seafood salad Ind Aliment (Pinerolo). - Vol. 49 no 504 ( 2010). - p 22-28. - 6 bib ref First author Daminelli, Paolo Seafood salad from four different Food Companies has been contaminated with a three strains suspension of Listeria monocytogenes. Samples were kept at different temperatures to evaluate pathogen behaviour during shelf-life. Observed data showed that Listerias multiplication in seafood salad can be counteracted by different food factors as pH < 5 and presence of endogenous lactic flora able to bio-compete aganist pathogen. On the contrary, without these factors, this kind of food supports a quick increase of Listeria monocytogenes. ID nr. 4416 Bolzoni° G, Marcolini° A Bactoscan FC - project for unified conversion line in Italy Milchwissenschaft. - Vol. 65 no 3 ( 2010). - p 309-310 Impact factor: 0,4060 Project PRC2009015 - Development of an information system for risk analysis in raw milk production. Bolzoni Dr. Giuseppe - Solo - MINSAN - 2009 - 169900,00 EUR - 18/10/2010 0.00.00 17/10/2012 0.00.00 - 1 - V6 - REPARTO PRODUZIONE PRIMARIA - Bolzoni Dr. Giuseppe - I 2 - V6 - REPARTO PRODUZIONE PRIMARIA - Zanardi Dr. Giorgio - I 3 - T0 - DIREZIONE SANITARIA - Pongolini Dr. Stefano - I 4 - T0 - DIREZIONE SANITARIA - Bellini Dr.ssa Silvia - I 5 - M2 - Sezione diagnostica provinciale di Bergamo - Tranquillo Dr. Vito - I 6 - N6 - Sezione diagnostica provinciale di Piacenza - Garbarino Dr.ssa Chiara - I 7 - T0 - DIREZIONE SANITARIA - Tamba Dr. Marco - I First author Bolzoni, Giuseppe ID nr. 4417 Candotti° P, Zappulla D, Archetti° I, Rota_Nodari° S Use of paper strips as nesting material in sows: effects on abnormal behaviours, salivary cortisol and productive data 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 296. - 2 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) Project PRC2008014 - Influence of environmental conditions on the welfare of some farm animal species (cattle, swine,turkeys,laying hens, goats) in diverse Italian herds. - Vinco dr. Leonardo James - Solo - MINSAN - 2008 - 140000,00 EUR - 01/09/2009 0.00.00 - 31/08/2011 0.00.00 - 1 - G3 Reparto benessere animale, immunoprofilassi, allevamenti e sperim. Animale - Vinco dr. Leonardo James - I 2 - N3 - Sezione diagnostica provinciale di Forlì - Tosi Dr. Giovanni - I 3 - M2 - Sezione diagnostica provinciale di Bergamo - Gaffuri Dr.ssa Alessandra - I 4 - I4 - Reparto produzioni zootecniche e sorveglianza epidemiologica degli allevamenti Bertocchi Dr. Luigi - I First author Candotti, Paolo ID nr. 4418 Morandi F, Bacci B, Panarese S, Ferrara D, Fusaro L, Bacci ML, Dottori° M, Bonilauri° P, Leotti G, Vila T, Joisel F, Ostanello F, Sarli G Conventional sows inseminated with artifi cially PCV2-infected semen: II. Post mortem results Pag. 240 di 300 31/08/2011 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 283. - 8 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) ID nr. 4419 Martelli P, Bonilauri° P, Gozio S, Cevidalli AE, Guazzetti S, Caleffi A, Borghetti P The effect on PCV2 viremia in pigs vaccinated with a single dose of Porcilis PCV® 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 406. - 2 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) ID nr. 4421 Luppi° A, Bonilauri° P, Mazzoni C, Di_Lecce R, Dottori° M Swine herd with a prevalent PCV2 subclinical infection: diagnostic investigation results before and after PCV2 vaccination 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 432. - 3 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) First author Luppi, Andrea ID nr. 4422 Candotti° P, Rota_Nodari° S, Nassuato° C Serum endotoxin in pigs aff ected by wasting syndromes 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 457. - 2 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) First author Candotti, Paolo ID nr. 4423 Sarli G, Morandi F, Panarese S, Bacci B, Ferrara D, Fusaro L, Bacci ML, Galeati G, Dottori° M, Bonilauri° P, Lelli° D, Leotti G, Vila T, Joisel F, Ostanello F Conventional sows inseminated with artificially PCV2 infected semen: I. In vivo results 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 458. - 10 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) ID nr. 4424 Alborali° L, Pavesi° R, Gradassi° M, Sarli G, Zanoni° M, Salogni° C, Giovannini° S Co-infections in PMWS field cases in Italian herds 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 463. - 11 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) First author Alborali, Giovanni Loris ID nr. 4425 Alborali° LG, Gradassi° M, Pavesi° R, Boniotti° B, Nassuato° C, Giovannini° S, Giacomini° E, Bellini° S, Pacciarini° M Pag. 241 di 300 31/08/2011 Detection of PRRSV in oral fluid samples: longitudinal study under field conditions 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 483. - 3 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) First author Alborali, Giovanni Loris ID nr. 4426 Dotti° S, Sandri G, Villa° R, Razzuoli° E, Sossi° E, Amadori° M Time-course of the immune response to Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) in giltss 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 490. - 4 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) Project PRRSV AUTOFINANZIATO - Evaluation of the immune response to Porcine Respiratory and Reproductive syndrome virus (PRRSV) - Ferrari Dr.ssa Maura - Solo - IZSLER - 2009 - 75000,00 EUR - 31/07/2009 0.00.00 - 31/12/2010 0.00.00 - 1 - K4 - REPARTO SUBSTRATI CELLULARI E IMMUNOLOGIA CELLULARE - Ferrari Dr.ssa Maura - I 2 - M1 - Sezione diagnostica provinciale di Brescia - Alborali Dr. Loris - I First author Dotti, Silvia ID nr. 4427 Alborali° LG, Gradassi° M, Zanoni° M, Moreno_Martin° A, Catella° A, Salogni° C, Sozzi° E, Foni° E, Cordioli° P Pandemic influenza virus (A/ H1N1) outbreak in pig farm in north of Italy 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 585. - 8 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) Project PRF2006304 - Prevalance of avian and swine influenza virus infection among farmers and animals. - Vonesch Dr.ssa Nicoletta - UO - MINSAN - 2006 - 300000,00 EUR - 02/01/2008 0.00.00 02/01/2011 0.00.00 - 1 - G2 - Reparto di Batteriologia Specializzata - Cordioli Dr. Paolo - I First author Alborali, Giovanni Loris ID nr. 4428 Magistrali C, Cucco L, D’Angelo G, Gherpelli° Y, Bonilauri° P, Merialdi° G Comparison between two different methods for antimicrobial susceptibility testing of Brachyspira hyodysenteriae 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 735. - 2 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) ID nr. 4429 Mazzoni C, Raffi V, Rosignoli° C, Bonilauri° P, Spaggiari° B, Gelmetti° D, Gibelli° L, Maioli° G, Faccini° S, Dottori° M, Tonon F, Luppi° A Clostridiosis in the farrowing room with an atypical onset: a clinical case 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 791. - 4 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) Project PRC2001006 - Use of PCR for typing C. perfrigens strains isolated from enteric and entero-toxiemic disease cases of animals and animal source foods. - Rosignoli Dr. Carlo - Solo - MINSAN - 2001 - Pag. 242 di 300 31/08/2011 93163464,00 LIT - 03/03/2003 0.00.00 - 02/07/2004 0.00.00 - 1 - M6 - Mantova - Rosignoli Dr. Carlo - I ID nr. 4430 Luppi° A, Iodice G, Bonilauri° P, Merialdi° G, Merenda° M, Dottori° M Simultaneous infection by serotypes 4 and 12 of Haemophilus parasuis in a swine herd: a clinical case 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 826. - 5 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) ID nr. 4431 Bresaola M, Lombardo° T, Villa° R, Sossi° E, Ferrari° M Retrospective study on swine Torque Teno virus genogroups 1 and 2 and porcine circovirus type 2 coinfection in Italian pig sera (from 1990 to 2009) 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 884. - 3 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) ID nr. 4432 Galletti° E, Merialdi° G, Antonelli A, Brini E, Fusaro L, Sarli G, Fontana° MC, Spaggiari° B, Martelli P Isoimmune thrombocytopenic purpura in newborn piglets: a case report 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 909. - 2 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) First author Galletti, Elena ID nr. 4433 Razzuoli° E, Villa° R, Sossi° E, Dotti° S, Amadori° M The interferon-alpha response in piglets at weaning 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 920. - 5 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) Project PRF2006201 - Adaptation of farm animals: repercussions on disease occurrence and drug usage Amadori Dr. Massimo - Capofila - MINSAN - 2006 - 861300,00 EUR - 15/01/2008 0.00.00 15/12/2010 0.00.00 - 1 - G3 - Reparto benessere animale, immunoprofilassi, allevamenti e sperim. Animale - Amadori Dr. Massimo - I 2 - IZSSA - Nicolussi dr.ssa Paola - E 3 - Università degli Studi della Tuscia (Dipartimento di Produzioni Animali) - Lacetera dr. Nicola - E 4 - IZSME - Martucciello dr.ssa Alessandra - E 5 - IZSUM - Moscati dr.ssa Livia - E 6 - IZSLT - Cavallina dr.ssa Roberta - E 7 - IZSVE - Stefani dr.ssa Anna-Lisa - E 8 - Istituto Superiore di Sanità - Vitale dr. Augusto - E 9 - Università Cattolica del Sacro Cuore - Facoltà di Agraria - Istituto di Zootecnica (Piacenza) Trevisi dr. Erminio - E 10 - UNIVERSITA' MILANO - DIPARTIMENTO MEDICINA VETERINARIA EX ISTITUTO DI ZOOTECNICA - Verga Dr.ssa Marina - E First author Razzuoli, Elisabetta Pag. 243 di 300 31/08/2011 ID nr. 4434 Cerati C, Palese A, Gamba F, Benaglia P, Bonilauri° P, Nisoli L Assessment of sow births synchronised with oxytotocin and long-acting oxytocin (carbetocin) 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 1106. - 3 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) ID nr. 4435 Mazzoni C, Borri E, Raffi V, Bertacchini S, Bonilauri° P, Palese A, Nisoli L Randomised double blind comparison of oxytocin and long acting oxytocin (carbetocin) in the synchronisation of farrowing in batch-breeding sows: evaluation of production parameters 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 1107. - 2 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) ID nr. 4436 Bosi P, Merialdi° G, Bardasi° L, Scandurra S, Vecchi M, Messori S, Ferro P, Nisi I, Casini L, Trevisi P Effect of three different antibiotics on commensal intestinal microflora and on some productive traits of weaning piglets 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 1029. - 2 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) ID nr. 4437 Razzuoli° E, Dotti° S, Villa° R, Sossi° E, Candotti° P, Amadori° M Oral interferon-alpha treatment and environmental adaptation of swine 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 1172. - 5 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) Project PRF2006201 - Adaptation of farm animals: repercussions on disease occurrence and drug usage Amadori Dr. Massimo - Capofila - MINSAN - 2006 - 861300,00 EUR - 15/01/2008 0.00.00 15/12/2010 0.00.00 - 1 - G3 - Reparto benessere animale, immunoprofilassi, allevamenti e sperim. Animale - Amadori Dr. Massimo - I 2 - IZSSA - Nicolussi dr.ssa Paola - E 3 - Università degli Studi della Tuscia (Dipartimento di Produzioni Animali) - Lacetera dr. Nicola - E 4 - IZSME - Martucciello dr.ssa Alessandra - E 5 - IZSUM - Moscati dr.ssa Livia - E 6 - IZSLT - Cavallina dr.ssa Roberta - E 7 - IZSVE - Stefani dr.ssa Anna-Lisa - E 8 - Istituto Superiore di Sanità - Vitale dr. Augusto - E 9 - Università Cattolica del Sacro Cuore - Facoltà di Agraria - Istituto di Zootecnica (Piacenza) Trevisi dr. Erminio - E 10 - UNIVERSITA' MILANO - DIPARTIMENTO MEDICINA VETERINARIA EX ISTITUTO DI ZOOTECNICA - Verga Dr.ssa Marina - E First author Razzuoli, Elisabetta ID nr. 4438 Cavadini° P, Botti° G, Barbieri° I, Lavazza° A, Capucci° L Molecular characterization of SG33 and Borghi vaccines used against myxomatosis Pag. 244 di 300 31/08/2011 Vaccine. - Vol. 28 no 33 ( 2010). - p 5414-5420. - 24 bib ref Impact factor: 3,616 Project PRC2003020 - Development of advanced laboratory methods for diagnosis and typing of rabbit mixoma virus - Capucci Dr. Lorenzo - Capofila - MINSAN - 2003 - 90000,00 EUR - 26/04/2004 0.00.00 - 25/10/2006 0.00.00 - 1 - H2 - Reparto di Biologia Molecolare - Capucci Dr. Lorenzo - I 2 - G1 - Reparto di Virologia e Sierologia Specializzata - Lavazza Dr. Antonio - I 3 - IZSVE - Agnoletti Dr. Fabrizio - E PRC2008003 - Development of molecular methods (or approaches) to characterize the DNA of myxoma virus field isolates - Cavadini dr.ssa Patrizia - Solo - MINSAN - 2008 - 01/09/2009 0.00.00 - 31/08/2011 0.00.00 - 58000,00 EUR 1 - H2 - Reparto di Biologia Molecolare - Cavadini dr.ssa Patrizia - I First author Cavadini, Patrizia Myxoma virus is a poxvirus responsible for myxomatosis in European Rabbits (Oryctolagus cuniculus). The entire genome of the myxoma virus has been sequenced, allowing a systemic survey of the functions of a large number of putative pathogenic factors that this virus expresses to subvert the immune and inflammatory pathways of infected rabbit hosts. In Italy, industrial rabbits are mostly vaccinated against myxomatosis using the attenuated myxoma virus strains Borghi or SG33. We have identified genetic markers specific for Borghi or SG33 vaccine strains and established a PCR-based assay that could be used to: (a) rapidly diagnose the presence of myxoma virus in infected organs; (b) discriminate between field strain-infected and vaccinated rabbits and (c) differentiate between Borghi or SG33 vaccine strain. ID nr. 4439 Menotta° S, D'Antonio° M, Padovani A, Fedrizzi° G Determination of cadmium in edible tissues of crabs catch in italian teritorial waters: monitoring on Emilia Romagna Regiong XX Convegno Nazionale Associazione Italiana Veterinari Igienisti (AIVI) : qualità dell'ambiente e sicurezza alimentare : 16, 17 18 Giugno 2010 Capanello su Staletti (CZ) / [s.l. : s.n., 2010]. - p 74 Convegno Nazionale Associazione Italiana Veterinari Igienisti (AIVI) (20 : Capanello su Staletti (CZ) : 16, 17 18 Giugno 2010) First author Menotta, Simonetta On 2008 there was a Community alert concerning the presence of Cadmium in crabs and on December 2009 there was a note from the Italian Ministry of Health concerning the control of cadmium in edible tissues of crabs caught in Italian territorial waters. This laboratory analyzed a total of 32 samples of crabs by atomic absorption spectroscopy graphite stove dividing the crustaceans in the following tissues: bright parts contained in claws, dark parts contained in the shell and red parts contained in the shell. The results showed that gastrointestinal shellfish tissues is at greatest risk, while the bright parts contained in claws are always below the limit set by European legislation (Reg. l 881/2006 and following). Furthermore it is clear that the crustaceans caught in the northern Adriatic present values of cadmium significantly lower compared to shellfish from France and UK. ID nr. 4440 Saccares S, Migliazzo A, Montagna C, Comin D, Mioni R, Decastelli L, Colmegna° S, Cenci T, Tonucci F, Morena V, Marozzi S, Lanni L Catering: critical aspects and microbiological risks identified by a collaborative study between Istituti Zooprofilattici XX Convegno Nazionale Associazione Italiana Veterinari Igienisti (AIVI) : qualità dell'ambiente e sicurezza alimentare : 16, 17 18 Giugno 2010 Capanello su Staletti (CZ) / [s.l. : s.n., 2010]. - p 77 Convegno Nazionale Associazione Italiana Veterinari Igienisti (AIVI) (20 : Capanello su Staletti (CZ) : 16, Pag. 245 di 300 31/08/2011 17 18 Giugno 2010) The purpose of the collaborative study of several Istituti Zooprofilattici is the harmonization of the documentation, of methods and investigations and assessment criteria for the development of the activities previewed from HACCP in catering. Many authors have highligllted some problems that does not allocate, in some cases, to perform risk assessments to different production processes. The main critical aspect emerged during the meetings is the difficulty of comparing data between the different structures involved because they lack uniform categorization of the many types of recipes resulting in considerately difficulty in identified microbiological limits of acceptability for themselves. Therefore it was decided to make a careful survey in order to propose a categorization of most-used recipes. ID nr. 4441 Liuzzo G, Bonilauri° P, Leonelli R , Serraino A, Bentley S Preliminary considerations on Sushi as potentially hazardous food XX Convegno Nazionale Associazione Italiana Veterinari Igienisti (AIVI) : qualità dell'ambiente e sicurezza alimentare : 16, 17 18 Giugno 2010 Capanello su Staletti (CZ) / [s.l. : s.n., 2010]. - p 39 Convegno Nazionale Associazione Italiana Veterinari Igienisti (AIVI) (20 : Capanello su Staletti (CZ) : 16, 17 18 Giugno 2010) The Authors studied physicochemical properties (pH and AW) of samples of Nigiri Sushi and their ingredients along their shelf lite, integrating those results with a predictive microbiolol model, in order to determine or to ride out the growth of Listeria monocytogenes above the thresholds set by Reg.(EU) 2073/2005. Results point towards substantial containment of the target biological hazard, even thouerh the prevention of thermal abuse is a keypoint in increasing safet. ID nr. 4442 Liuzzo G, Riu R, Merialdi° G, Bardasi° L, Galletti° G, Carra° E, Rosmini R, Giacometti F, Pizzamiglio V, Serraino A Indicator and pathogenic microorganisms contamination of hide of cattle presented to for slaughter and contamination of the resultant carcasses XX Convegno Nazionale Associazione Italiana Veterinari Igienisti (AIVI) : qualità dell'ambiente e sicurezza alimentare : 16, 17 18 Giugno 2010 Capanello su Staletti (CZ) / [s.l. : s.n., 2010]. - p 6 Convegno Nazionale Associazione Italiana Veterinari Igienisti (AIVI) (20 : Capanello su Staletti (CZ) : 16, 17 18 Giugno 2010) Foodborne pathogens including Escherichiaa coli 0157:H7, Salmonella spp. and Campylobacte rspp., can enter the meat chain at multiple points. Animals with excessively dirty hides will represent a risk of crosscontaminations during transport, in the slaughtered house environment and during dressing procedures. The aim of this work was to investigate the relationship among hygiene indicator microorganisms (Enterobacteriaceae and Escherichiaa coli) count, in hide and carcass of cattle presented for slaughter, and different hide cleanliness level in two abattoir (R and F) and estimate the prevalence of pathogens Escherichiaa coli O l 57:H7, Salmonella spp. and Campylobacter spp. in hide and carcass of dirty animals. The results showed that hide Escherichiaa coli and Enterobacteriaceae count were significantly higher in dirty animals than in clean animals (P<0,05), but carcass contamination avere significantly higher in dirty animals than in clean animals only in R abattoir. Escherichiaa coli O 157:H7 was detected in 19 samples of hidc (40,4 %), and 2 samples of carccass. Campylobacter jejuni as isolated in l3 samples of hidc (25,5%) and one sample of carcass. Salmonella spp. were not found in all the samples of hide and carcass. ID nr. 4443 Pag. 246 di 300 31/08/2011 Oliverio° E, Finazzi° G, Daminelli° P, Monastero° P, Boni° P Dynamics of Listeria monocytogenes, Salmonella typhimurium Escherichia coli O157: H7 during the production of 'Nduja XX Convegno Nazionale Associazione Italiana Veterinari Igienisti (AIVI) : qualità dell'ambiente e sicurezza alimentare : 16, 17 18 Giugno 2010 Capanello su Staletti (CZ) / [s.l. : s.n., 2010]. - p 14 Convegno Nazionale Associazione Italiana Veterinari Igienisti (AIVI) (20 : Capanello su Staletti (CZ) : 16, 17 18 Giugno 2010) First author Oliverio, Elisa The aim of this survey was to evaluate Listeria monocytogenes, Salmonella typhimurium and Escherichia coli O157:H7 fate during production process of `Nduja, traditional italian Salami. For this purpose the kneading for processing provided by Salumificio artigianale F.lli Pugliese was contaminated with mixtures of these microorganisms, then bagged and seasoned according to the processing of the producer. The results of this challenge test showed that the seasoning of the product reduces the concentration of microorganisms artificially added. ID nr. 4445 Razzuoli° E, Dotti° S, Archetti° IL, Amadori° M Clinical chemistry parameters of piglets at weaning are modulated by an oral, low-dose interferon-a treatment Vet Res Commun. - Vol. 34 suppl 1 ( 2010). - p 189-192. - 6 bib ref Impact factor: 1,050 Project PRC2005002 - Assessment and modulation of the inflammatory effects of early weaning in the piglet - Amadori Dr. Massimo - Solo - MINSAN - 2005 - 22000,00 EUR - 15/05/2006 0.00.00 14/11/2008 0.00.00 - 1 - G3 - Reparto benessere animale, immunoprofilassi, allevamenti e sperim. Animale - Amadori Dr. Massimo - I First author Razzuoli, Elisabetta Correspondig author Amadori, Massimo Clinical chemistry parameters were investigated in piglets weaned at 22 and 28 days. The effects of an oral, low-dose interferon (IFN)-a treatment at weaning were evaluated as well. The trial was carried out on 59 piglets from the same farm, allocated to three groups: the first and the second groups were weaned at 28 and 22 days of age, respectively; the third group was weaned at 22 days and orally treated at weaning with IFN-a at a low dose (1 IU human lymphoblastoid IFN-a /kg body weight in drinking water) for 10 consecutive days. The results of the field trial confirmed that weaning is one of the main stressing events for pigs at intensive farms. In particular, these findings are based on a dramatic increase in serum haptoglobin levels after weaning in the three groups under study. Results also indicated that early weaning at 22 days implies higher environmental adaptation. In such animals, an oral, low-dose IFN-a treatment gave rise to a peculiar, negative, acute-phase response (reduced levels of serum albumin) and to significantly lower a-globulin concentrations in sera. Taken together, IFN-a was shown to modulate inflammatory responses to early weaning stress. ID nr. 4450 Pistone D, Pajoro° M, Fabbi° M, Vicari° N, Marone P, Genchi C, Novati S, Sassera D, Epis S, Bandi C Lyme borreliosis, Po river valley, Italy Emerg Inf Dis. - Vol. 16 no 8 ( 2010). - p 1289-1291. - 14 bib ref Impact factor: 6,794 Pag. 247 di 300 31/08/2011 We aimed to determine the presence of Ixodes ricinus ticks in heavily populated areas of the Po River Valley after report of a Lyme disease case. Eighteen percent of ticks examined from 3 locations were positive for Lyme disease borreliae. Lyme disease was diagnosed for 3 workers at risk for tike bite. ID nr. 4451 Daffara S, Brazzelli V, Ronzi G, Vicari° N, Barbarini D, Pistone D, Pajoro° M, Fabbi° M, Bandi C, Marone P Chronic erythema and fish for salmon in Alaska: an enigma resolved by the laboratory of microbiology Microbiol Med. - Vol. 25 no 1 ( 2010). - p 70-71. - 5 bib ref A 50-year-old man, pentathlete and fond of salmon fishing, after returning from Alaska, was referred to our Division for an erythematous and indolent lesion on the right thigh gradually enlarging from the right knee to the right rear and the buttock. It has been given a clinical diagnosis of figurate erythema. Laboratory exam showed moderate leukocytosis and hypergammaglobulinemia, and the serological markers of past contact with noted EBV and CMV. A "punch" biopsy of the edge of the lesion showed a superficial and deep perivascular and interstitial infiltrate of lymphocytes, eosinophiles and a few plasma cells, consistent with a borrelial infection. Lyme serology (IFI) showed a questionable borderline positivity; subsequent investigations by ELISA and Western Blot were both positive and led to a diagnosis of erythema chronicum migrans in course of borreliosis. The diagnosis is further confirmed by positive PCR for Borrelia burgdorferi sensu lato. The erythema resolved after a 2-week doxycycline treatment (2x100 mg die). The amplification product (16S rDNA gene) obtained from the skin biopsy, has been sequenced using standard ABI technology, confirming the identification of a member of Borrelia burgdorferi sensu lato (sl) complex. Since this sequence was not useful to identify the genospecies, further analysis were performed employing a nested PCR targeted on the internal transcribed spacer (ITS) of Borrelia burgdorferi, following a protocol previously described1. The ITS sequence showed 100% identity with Borrelia afzelii. Since this species is not reported from North America we state that the patient has not been infected by Borrelia afzelii through a tick bite during the fishing trip in Alaska. ID nr. 4455 Ricchi° M, Cammi° G, Garbarino° C, Buzzini P, Belletti° G, Arrigoni° N A rapid Real Time-PCR/DNA Melting Resolution Method to identify Prototheca species J Appl Microbiol. - Vol. 110 ( 2010). - p 27-34. - 33 bib ref Impact factor: 2,098 First author Ricchi, Matteo Aim: The study describes the development of a simple and rapid tool to identify yeast-like microalgae belonging to the genus Prototheca. Methods and Results: The method, based on two-step Real Time PCR reaction followed by DNA Resolution Melting Analysis (qPCR / RMA), has been developed using reference strains belonging to both pathogenic (P. zopfii genotype 2, P. wickerhamii and P. blaschkeae) and nonpathogenic species (P. zopfii genotype 1, P. stagnora and P. ulmea). In order to validate the method, seventy recently isolated Prototheca strains were thus tested in parallel with both the first qPCR /RMA and the conventional genotype-specific PCR assay: they were classified as P. zopfii genotype 1, P. zopfii genotype 2 and P. blaschkeae, with a perfect accordance between the two above methodologies. Furthermore, we used the second qPCR /RMA to identify the other species (P. stagnora, P. ulmea and P. wickerhamii), which cannot be discriminated by conventional PCR assay. Conclusions: The assay two-step Real Time PCR is accurate, robust, costeffective and faster than auxonographical, biochemical or conventional molecular biology methods. Significance and Impact of the Study: the rapid and high throughout two-step qPCR /RMA tool can be usefully used for the identification of clinical and environmental Prototheca species into the framework of the diagnosis of animal (e.g. bovine mastitis) or human protothecosis. Pag. 248 di 300 31/08/2011 ID nr. 4456 Petracci M, Amadori° M, Archetti° IL, Bianchi M, Montella L, Cavani C Effect of Feeding During Long Transport on Body Condition and Physiological Status of Pullets European Poultry Conference 2010 / [s.n. : s.l., 2010]. - 11 p . - 8 bib ref European Poultry Conference (13th : Tours, France : August 23-27, 2010) A study was conducted to test the effects of a newly-developed jelly-like transport feed (TF) on body condition and physiological status of egg-laying strain pullets transported for more than 12 hours. Four transport trials were conducted using 440 animals (Lohman Brown, 16-wk-old) loaded in 48×54×21 cm (length×width×height) metal wire transport crates. Control pullets (C group) were kept without feed and water and loaded at standard stocking density (8 pullets/crate; 324 sqcm/animal), whereas the experimental group (TF group) had free access to TF and were loaded by using the same density of C group. Birds were placed on commercial lorries and transported for 20 hours in autumn, winter and summer corresponding to different environmental conditions (mild, cold and warm). TF consumption, changes in body weight and body (cloacal) temperature were assessed. Before catching and after transport, blood samples (15 animals/group) were taken from vena ulnaris superficialis and used to determine haematocrit, total protein, sodium, glucose, plasma corticosterone, reactive oxygen metabolites (ROMs), total antioxidant power (OXY-TA) and lysozyme. During the transport, average TF consumption was 69.7 g/animal (13.0 g dry matter) with an metabolizable energy supply of 0.215 MJ/animal. TF group had lower body weight losses (7.0 vs. 5.9%; P<0.01) and lower decrease of body temperature. Moreover, TF pullets showed significantly more favourable haematocrit, total protein, sodium, glucose, plasma corticosterone, ROMs and OXY-TA values. Overall, these findings indicate that TF can be a useful way to maintain satisfactory body condition and physiological status of pullets during long-distance journeys. ID nr. 4457 Razzuoli° E, Olzi E, Calà P, Cafazzo S, Magnani D, Archetti° IL, Nanni_Costa L, Amadori° M Clinical immunology parameters in cattle submitted to shortjourneys to the ANAFI Genetic Centre Buiatria. - Vol. 5 no 2 ( 2010). - p 23-29. - 5 bib ref Project PRC2007003 - Evaluation of transportation stress with respect to climatic conditions. - Amadori Dr. Massimo - Capofila - MINSAN - 2007 - 260000,00 EUR - 01/10/2008 0.00.00 - 31/03/2010 0.00.00 - 1 - S1 - Centro Benessere Animale e Immunoprofilassi - Amadori Dr. Massimo - I 2 - Università di Bologna - Dipartimento Protezione e Valorizzazione Agroalimentare - Leonardo DR: Nanni Costa - E 3 - Università degli Studi di Padova - Daniele dr. Bernardini - E 4 - Università degli Studi della Tuscia - Dipartimento di produzioni Animali - Nicola Prof. Lacetera E First author Razzuoli, Elisabetta Transport is a very important stress factor for farro animals; hence, the European and Italiar legislations have extensively considered the issue. However, journeys of short duration « 8 hours Reg. 1/2005) have been substantially neglected in that a relevant risk factor is not perceived. Owing tc the above, this study aimed at evaluating the effects of shortjourneys on the homeostatic adaptatior of Frisian bulls. Our findings indicate a global adaptation strategy of cattle to various environmenta stressors, of which transportation was not always of major importance. In such a strategy, the negative acute phase response should be highlighted; this can be demonstrated 15 days after transportation anc it is sided by an inflammatory cytokine response and a stepwise increase of serum gamma-globulin this latter result can be probably traced back to the environmental infectious pressure experienced after transportation. Pag. 249 di 300 31/08/2011 ID nr. 4458 Gentile A, Bettini G, Dalla_Pria A, Rosignoli° C, Sabattini S, Scarpa F, Testoni S Clinical and anatomo pathological experiences on the Bovine Neonatal Pancytopenia Buiatria. - Vol. 5 no 2 ( 2010). - p 3-6. - 6 bib ref In recent times; similar to other European countries, Italian farmers have also been reporting the worrisome occurrence of hemorrhagic syndromes associated with pancytopenia in young calves. In this preliminary note the authors illustrate the clinical and anatomo- pathological aspects of the caseload directly experienced. ID nr. 4465 Pozzi SP, Alborali° G, Cordioli° P, Rosner A Investigation of swine influenza sub-types H1N1, H3N2, H1N2 in pigs population in Israel (2002-2009) Isr J Vet Med. - Vol. 65 no 1 ( 2010). - p 11-14. - 28 bib ref Impact factor: 0,086 The recent emergence of H1N1 influenza in humans generated concerns about cross-species infections between hurnans and swine, and the potential amplifing role of infected and densely populated pigs units. In Israel there are 24 swine breeding units, mainly localized in Northern Region and a single unit in the South; these units produce about 200,000 slaughtered pigs per year. While in the part, data were collected and examined for varíous swine respiratory pathogens, no data has been examined for the presence of influenza virus in swine populations in Israel. This work retrospectively examines and summarizes the epArniological data for influenza viruses subtypes HIN 1; H3N2, H1N2 in Israel swine population from 2002 to the present and describes the methods used for serological and virological determinafions. 306 blood samples and 40 organs samples from 31 samplings out of 1.6 swine units vere found to be negative to sub types 1-IINI; H3N2; H1N2 influenza virus. The consistency of samplings used allowed us to conclude that swine populations in Israel are negative to sub- type H1N1, H3N2, H1N2 influenza virus. Particular susceptibìlity of naive swine populations to íntluenza viruses suggests that vaccination of workers involved in the pig industry is indicated in order to decrease the risk of cross-infection and the possibility of reassortant straín development. ID nr. 4466 Stercoli° L, Pezzoni° G, Brocchi° E Evaluation of ORF2 and ORF3 recombiat antigens in HEV antibody-detection ELISA 1st Congress of the European Association of Veterinary Laboratory Diagnosticians (EAVLD) : 15-17 September 2010 Lelystad, the Netherlands : abstracts / [s.l : s.n, c2010]. - O-1-06 Congress of the European Association of Veterinary Laboratory Diagnosticians (EAVLD) (1st : Lelystad, the Netherlands : 15-17 September 2010) Project PRC2006001 - Development and implementation of epidemiological surveillance and risk analysis for primary production and processing of typical area food - Boni Dr. Paolo - Solo - MINSAN - 2006 - 1131023,00 EUR - 02/07/2007 0.00.00 - 01/07/2010 0.00.00 - 1 - M6 - Sezione diagnostica provinciale di Mantova - Nigrelli Dr. Arrigo - I 2 - N1 - Sezione diagnostica provinciale di Bologna - Belletti Dr. Gian Luca - I 3 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 4 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I 5 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I First author Stercoli, Lidia ID nr. 4467 Pag. 250 di 300 31/08/2011 Benedetti° D, Pezzoni° G, Grazioli° S, Barbieri° I, Brocchi° E Comparative performance of three genome amplification assays for detection of Swine Vesicular Disease virus in experimental and field samples 1st Congress of the European Association of Veterinary Laboratory Diagnosticians (EAVLD) : 15-17 September 2010 Lelystad, The Netherlands : abstracts / [s.l : s.n, c2010]. - p. O-2-09. - 2 bib ref Congress of the European Association of Veterinary Laboratory Diagnosticians (EAVLD) (1st : Lelystad, the Netherlands : 15-17 September 2010) Project PRC2006001 - Development and implementation of epidemiological surveillance and risk analysis for primary production and processing of typical area food - Boni Dr. Paolo - Solo - MINSAN - 2006 - 1131023,00 EUR - 02/07/2007 0.00.00 - 01/07/2010 0.00.00 - 1 - M6 - Sezione diagnostica provinciale di Mantova - Nigrelli Dr. Arrigo - I 2 - N1 - Sezione diagnostica provinciale di Bologna - Belletti Dr. Gian Luca - I 3 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 4 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I 5 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I PRC2008002 - Development and evaluation of Real Time PCR and isothermal amplification methods for the virological diagnosis of swine vesicular disease - Pezzoni dr.ssa giulia - Solo MINSAN - 2008 - 01/10/2009 0.00.00 - 30/09/2011 0.00.00 - 95000,00 EUR 1 - H1 - Reparto di Biotecnologie - Pezzoni dr.ssa Giulia - I First author Benedetti, Dennis ID nr. 4468 Lelli° D, Moreno° A, Brocchi° E, Sozzi° E, Gamba° D, Autorino G, Clavero J, Angel M, Cordioli° P West Nile Virus: characterization of monoclonal antibodies and potential application in laboratory diagnosis 4th annual meeting Epizone : "Bridges to the future" : 7-10 June, 2010 Saint-Malo, France : abstracts oral and poster presentations / [s.l. : s. n., 2010]. - p 161-162 Annual meeting Epizone (4th : Saint-Malo, France : 7-10 June, 2010) Project PRF2005301 - Development of diagnostic tests for surveillance of the equine viral neuropathologies - Amaddeo Dr. Demetrio - UO - MINSAN - 2005 - 440000,00 EUR - 15/07/2006 0.00.00 14/07/2009 0.00.00 - 1 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo -I First author Lelli, Davide ID nr. 4469 Pezzoni° G, Grazioli° S, Tironi° D, Barbieri° I, Brocchi° E Validation of a loop-mediated isothermal amplification assay for detection of swine vesicular disease virus in experimental and field samples 4th annual meeting Epizone : "Bridges to the future" : 7-10 June, 2010 Saint-Malo, France : Abstracts oral and poster presentations / [s.l. : s. n., 2010]. - p 187 Annual meeting Epizone (4th : Saint-Malo, France : 7-10 June, 2010) Project PRC2006001 - Development and implementation of epidemiological surveillance and risk analysis for primary production and processing of typical area food - Boni Dr. Paolo - Solo - MINSAN - 2006 - 1131023,00 EUR - 02/07/2007 0.00.00 - 01/07/2010 0.00.00 - 1 - M6 - Sezione diagnostica provinciale di Mantova - Nigrelli Dr. Arrigo - I 2 - N1 - Sezione diagnostica provinciale di Bologna - Belletti Dr. Gian Luca - I 3 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 4 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I 5 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I Pag. 251 di 300 31/08/2011 PRC2008002 - Development and evaluation of Real Time PCR and isothermal amplification methods for the virological diagnosis of swine vesicular disease - Pezzoni dr.ssa giulia - Solo MINSAN - 2008 - 01/10/2009 0.00.00 - 30/09/2011 0.00.00 - 95000,00 EUR 1 - H1 - Reparto di Biotecnologie - Pezzoni dr.ssa Giulia - I First author Pezzoni, Giulia ID nr. 4470 Bellini° S, Grazioli° S, Nassuato° C, Lombardi° G, Martinelli° N, Bugnetti° M, Eblè P, Dekker A An experimental infection with swine vesicular disease virus in pregnant sows to determine the duration of passive immunity in piglets 4th annual meeting Epizone : "Bridges to the future" : 7-10 June, 2010 Saint-Malo, France : abstracts oral and poster presentations / [s.l. : s. n., c2010]. - p 178 Annual meeting Epizone (4th : Saint-Malo, France : 7-10 June, 2010) Project epizone - "Network of excellence for epizootic disease diagnosis and control - "EPIZONE". - Van Rijn dr. Piet - UO - CE - 2005 - 14000000,00 EUR - 01/06/2006 0.00.00 - 31/05/2011 0.00.00 17 - U3 - REPARTO AGENTI AD ALTA DIFFUSIONE E BIOTECNOLOGIE - Bellini Dr.ssa Silvia I First author Bellini, Silvia ID nr. 4471 Delogu M, De_Marco MA, Di_Trani L, Raffini° E, Cotti C, Puzelli S, Ostanello F, Webster RG, Cassone A, Donatelli I Can Preening Contribute to Influenza A Virus Infection in Wild Waterbirds? PLoS One. - Vol. 5 no 6 ( 2010). - p e11315. - 60 bib ref Impact factor: 4,351 Project PRC2002003 - Experimental transmission of Italian BSE strain to cattle: clinical observation, strain characterization, in vivo PrPres and molecular marker detection; establishment of reference samples for Nation-wide research. - Capucci Dr. Lorenzo - Capofila - MINSAN - 2002 - 306402,10 EUR 17/11/2003 0.00.00 - 31/08/2006 0.00.00 - 1 - H2 - Reparto di Biologia Molecolare - Capucci Dr. Lorenzo - I 2 - IZSPLV - Caramelli Dr.ssa Maria - E 3 - IST. NEUROLOGICO BESTA - Tagliavini Dr. Fabrizio - E 4 - UNI VR - Monaco Dr. Salvatore - E Wild aquatic birds in the Orders Anseriformes and Charadriiformes are the main reservoir hosts perpetuating the genetic pool of all influenza A viruses, including pandemic viruses. High viral loads in feces of infected birds permit a fecal-oral route of transmission. Numerous studies have reported the isolation of avian influenza viruses (AIVs) from surface water at aquatic bird habitats. These isolations indicate aquatic environments have an important role in the transmission of AIV among wild aquatic birds. However, the progressive dilution of infectious feces in water could decrease the likelihood of virus/host interactions. To evaluate whether alternate mechanisms facilitate AIV transmission in aquatic bird populations, we investigated whether the preen oil gland secretions by which all aquatic birds make their feathers waterproof could support a natural mechanism that concentrates AIVs from water onto birds' bodies, thus, representing a possible source of infection by preening activity. We consistently detected both viral RNA and infectious AIVs on swabs of preened feathers of 345 wild mallards by using reverse transcription–polymerase chain reaction (RT-PCR) and virus-isolation (VI) assays. Additionally, in two laboratory experiments using a quantitative realtime (qR) RT-PCR assay, we demonstrated that feather samples (n = 5) and cotton swabs (n = 24) experimentally impregnated with preen oil, when soaked in AIV-contaminated waters, attracted and concentrated AIVs on their surfaces. The data presented herein provide information that expands our understanding of AIV ecology in the wild bird reservoir system. Pag. 252 di 300 31/08/2011 ID nr. 4472 Galarini R, Fioroni L, Moretti S, Dusi° G Development and validation of a confirmatory method for eleven coccidiostats in eggs 6th Intenational Symposium on Hormone and Veterinary Drug Residue Analysis : Ghent, Belgium, June 1-4, 2010 : abstract book / [s.l. : s.n., 2010]. - p 92 Intenational Symposium on Hormone and Veterinary Drug Residue Analysis (6th. : Ghent, Belgium : June 1-4, 2010) First author Dusi, Guglielmo A confirmatory method for the determination of residues for eleven coccidiostats including ionophore antibiotics (lasalocid, maduramycin, monensin, narasin, salinomycin, semduramycin) and chemical coccidiostats (decoquinate, diclazuril, halofuginone, nicarbazin and robenidine) in poultry eggs was developed. The analytes were chosen considering the comprehensive list of authorised coccidiostats reported in the Community Register of Feed Additives as established by Regulation (EC) 1831/2003. The sample preparation was based on extraction with acetonitrile, defatting with hexane and clean-up on Silica SPE. The target compounds were identified (at least four identification points) and quantified by high performance liquid chromatography (HPLC) coupled with electrospray ionisation tandem mass spectrometry (ESI/MS/MS) setting positive or negative ionisation mode. The method performance characteristics required by Commission Decision 2002/657/EC were estimated adopting the more flexible and simple validation design suggested by Kaufmann (Anal. Chim. Acta, 637 (2009) 144). This alternative approach, instead of the fixed Decision plan which involves a narrow validation interval (0.5-1.5 times the permitted limit), focus the experimental study on a larger dynamic range (two orders of magnitude), allowing the simultaneous validation of several substances with significantly different legal limits. ID nr. 4473 Dusi° G, Bozzoni° E, Tognoli° N, Assini° W, Gasparini° M, Ferretti° E Development and validation of a confirmatory method for the determination of nine corticosteroids in liver sample by liquid chromatography-tandem mass spectrometry 6th Intenational Symposium on Hormone and Veterinary Drug Residue Analysis : Ghent, Belgium, June 1-4, 2010 : abstract book / [s.l. : s.n., 2010]. - p 95 Intenational Symposium on Hormone and Veterinary Drug Residue Analysis (6th. : Ghent, Belgium : June 1-4, 2010) First author Dusi, Guglielmo Corticosteroids belong to the class of the steroid hormones and they are important in normal protein, carbohydrate and fat metabolism and for their role in controlling inflammation. Besides naturally occurring corticosteroids, which are secreted by the adrenal cortex, a whole range of chemical synthetic analogs (e.g. dexamethasone and prednisolone) have been developed. In the EU legislation the use of synthetic corticosteroids as growth promoters in livestock breeding is prohibited. However, a few synthetic corticosteroids have a legal use and, for this reason, maximum residue levels (MRL) for these drugs are established in matrices as bovine liver. Several analytical procedures, with a deconjugation step, for the LC– MS/MS analysis of corticosteroids in liver sample have been published in recent years, but they are complex and time consuming. The aim of this work is the development of a reliable but simply and fast sample deconjugation/purification method for the identification and quantification of nine synthetic corticosteroids. The liver sample was subjected to an enzymatic deconjugation and then to a one-step cleanup on an Waters OASIS HLB SPE cartridge. The analytes were detected by liquid chromatography-negative-ion electrospray tandem mass spectrometry using deuterium-labelled internal standards. The method was validated as a quantitative confirmatory method according to European Commission Decision 2002/657/CE. The evaluated parameters were: linearity, specificity, precision (repeatability and within-laboratory reproducibility), recovery, decision limit, detection capability and ruggedness. All the analytes should be detected above one µg kg-1 with a recovery above 60 %. Repeatability was below 8 % and within-laboratory reproducibility below 16 % for the nine corticosteroids. Pag. 253 di 300 31/08/2011 ID nr. 4474 Gradassi° M, Zanoni° M, Salogni° C, Tagliabue° S, D'Incau° M, Bertasi° B, Losio° MN, Boni° P, Alborali° GL Phagetyping, ribopyting and antimicrobial resistance profiles of Salmonella Typhimurium isolated from Italian heavy pigs at slaughter International Symposium Salmonella and Salmonellosis : June 28-30, 2010 Saint-Malo, France : Proceedings / [s.l. : s.n., 2010]. - p 275-276 International Symposium Salmonella and Salmonellosis : Saint-Malo, France : June, 28-30, 2010) Project PRC2007007 - An investigation into the main enteric disease agents of swine with potential zoonotic repercussions. - Tagliabue Dr.ssa Silvia - Solo - MINSAN - 2007 - 80000,00 EUR - 03/11/2008 0.00.00 - 02/05/2011 0.00.00 - 1 - U2 - REPARTO DI BATTERIOLOGIA - Tagliabue Dr.ssa Silvia -I 2 - M6 - Sezione diagnostica provinciale di Mantova - Nigrelli Dr. Arrigo - I 3 - N6 - Sezione diagnostica provinciale di Piacenza - Belletti Dr. Gian Luca - I First author Gradassi, Matteo ID nr. 4475 Bonardi S, Paris A, Bassi L, Salmi F, Bacci C, Riboldi E, Boni E, D'Incau° M, Tagliabue° S, Brindani F Detection, semiquantitative enumeration, and antimicrobial susceptibility of Yersinia enterocolitica in pork and chicken meats in Italy J Food Prot. - Vol. 73 no 10 ( 2010). - p 1785-1792. - 71 bib ref Impact factor: 1,960 Yersinia enterocolitica is recognized as an etiological agent of gastroenteritis, lymphadenitis, and chronic sequelae. During 2006 and 2007, 205 samples (125 pork and 80 chicken meats) were collected in Italy and tested for detection and most-probable-number (MPN) enumeration of Y. enterocolitica organisms. The microorganism was isolated from 45 samples (21.9%): 19 (15.2%) pork samples and 26 (32.5%) chicken samples. Y. enterocolitica MPN contamination levels were low, ranging from 0.30 to 1.50/g. Most (94.4%) Y. enterocolitica strains were biotype 1A (serotypes O:3; O:5; O:6,30; O:6,30-6,31; O:7,8-8-8,19; O:8; O:9; O:25,35; O:36; and O nontypeable), and 5.6% of the isolates were bioserotype 2/O:9. All isolates were tested for yadA, ail, inv, ystA, and ystB virulence sequences. The yadA gene was detected in two strains (3.7%) isolated from chicken samples: one Y. enterocolitica 2/O:9 yadA+ ail+ ystA+, and one Y. enterocolitica 1A/O:7,8-8-8,19 yadA+ inv+ ystB+. Two (3.7%) 2/O:9 strains, isolated from pork products, were ail+ ystA+. Most biotype 1A strains were ystB+ (84.3%) and inv+ (39.2%). All strains were sensitive to cefotaxime, ciprofloxacin, chloramphenicol, nalidixic acid, streptomycin, sulfonamide, tetracycline, trimethoprim, and trimethoprim-sulfamethoxazole. Resistance to gentamicin and aztreonam was observed in 1.9% of the isolates. High levels of resistance were detected toward amoxicillin-clavulanic acid (27.8%), ampicillin (75.9%), and erythromycin (100%). The authors hypothesize that Y. enterocolitica pathogenic biotypes are rather uncommon in foods when compared with their isolation rates from animal sources and that chicken meat could be contaminated as well as pig meat and its derived products. ID nr. 4476 Gelmetti° D, Bertoletti° I, Giudice C Bilateral complex microphthalmia with intraocular dermoid cyst in a neonate red deer (Cervus elaphus) J Wild Dis. - Vol. 46 no 3 ( 2010). - p 961-965. - 16 bib ref Impact factor: 1,373 First author Gelmetti, Daniela Pag. 254 di 300 31/08/2011 A 3-day-old, male red deer (Cervus elaphus) with bilateral microphthalmia was found dead in the Western Alps in northern Italy. No other gross alterations were present. Ocular globes were formalin fixed and processed for histology. In both eyes, a large cyst, filled with keratin and lined by squamous epithelium admixed with sebaceous glands and hair follicles, expanded the anterior chamber. A mass composed of spindle cells and small tubules, embedded in myxoid ground substance, filled the vitreal chamber. No lens tissue was found, leading to the speculation that the dermoid cystic structures originated from abnormal differentiation of the primitive ectodermal lens vesicle. Immunohistochemistry with a panel of antibodies against cytoskeletal proteins revealed neural and mesenchymal elements within the vitreal mass. A complex bilateral ocular dysgenesis, with microphthalmia, aphakia, and dermoid metaplasia of primitive lens vesicle was diagnosed. The latter finding was unusual and was previously documented only in Texel sheep (Ovis ammon), in which it was related to specific gene mutation on chromosome 23.. ID nr. 4477 Martella V, Bianchi° A, Bertoletti° I, Pedrotti L, Gugiatti A, Catella° A, Cordioli° P, Lucente MS, Elia G, Buonavoglia C Canine distemper epizootic among Red Foxes, Italy, 2009 Emerg Inf Dis. - Vol. 16 no 12 ( 2010). - p 2007-2009. - 10 bib ref Impact factor: 6,794 ID nr. 4478 Cavadini° P, Botti° G, Barbieri° I, Lavazza° A, Capucci° L Molecular characterization of SG33 and Borghi vaccines used against myxomatosis 1st Congress European Association of Veterinary Laboratory Diagnosticians (EAVLD) : 15-17 September, 2010 Lelystad, The Netherlands : abstract / [s.l. : s.n., 2010]. - P 2-22. - 4 bib ref Congress European Association of Veterinary Laboratory Diagnosticians (EAVLD) (1st : Lelystad, The Netherlands : 15-17 September, 2010) Project PRC2003020 - Development of advanced laboratory methods for diagnosis and typing of rabbit mixoma virus - Capucci Dr. Lorenzo - Capofila - MINSAN - 2003 - 90000,00 EUR - 26/04/2004 0.00.00 - 25/10/2006 0.00.00 - 1 - H2 - Reparto di Biologia Molecolare - Capucci Dr. Lorenzo - I 2 - G1 - Reparto di Virologia e Sierologia Specializzata - Lavazza Dr. Antonio - I 3 - IZSVE - Agnoletti Dr. Fabrizio - E PRC2008003 - Development of molecular methods (or approaches) to characterize the DNA of myxoma virus field isolates - Cavadini dr.ssa Patrizia - Solo - MINSAN - 2008 - 01/09/2009 0.00.00 - 31/08/2011 0.00.00 - 58000,00 EUR 1 - H2 - Reparto di Biologia Molecolare - Cavadini dr.ssa Patrizia - I First author Cavadini, Patrizia Myxoma virus is a poxvirus responsible for myxomatosis in European Rabbits (Oryctolagus cuniculus). The entire genome of the myxoma virus has been sequenced, allowing a systemic survey of the functions of a large number of putative pathogenic factors that this virus expresses to subvert the immune and inflammatory pathways of infected rabbit hosts. In Italy, industrial rabbits are mostly vaccinated against myxomatosis using the attenuated myxoma virus strains Borghi or SG33. We have identified genetic markers specific for Borghi or SG33 vaccine strains and established a PCR-based assay that could be used to: (a) rapidly diagnose the presence of myxoma virus in infected organs; (b) discriminate between field strain-infected and vaccinated rabbits and (c) differentiate between Borghi or SG33 vaccine strain. ID nr. 4479 Calzolari° M, Bonilauri° P, Bellini R, Caimi M, Defilippo° F, Maioli° G, Albieri A, Medici A, Veronesi R, Pilani R, Gelati A, Angelini P, Parco V, Fabbi° M, Barbieri° I, Lelli° D, Pag. 255 di 300 31/08/2011 Lavazza° A, Cordioli° P, Dottori° M Arboviral survey of mosquitoes in two Northern italian regions in 2007 and 2008 Vector Borne Zoonotic Dis. - Vol. 10 no 9 ( 2010). - p 875-884. - 47 bib ref Impact factor: 2,607 First author Calzolari, Mattia Recently, Italy - particularly the Emilia-Romagna region - was the location of consecutive outbreaks of human diseases caused by the arboviruses chikungunya virus and West Nile virus. The two outbreaks, spread by different species of mosquitoes, were not related, but pointed out the lack of an arboviral surveillance program in this region. Beginning in 2007 entomological surveillance was initiated in the Emilia-Romagna region, and in 2008 the program was improved and extended at Lombardia region. Using CO2-baited traps, 65,292 mosquitoes were collected; pooled by date of collection, location, and species; macerated manually; and tested by reverse transcription (RT)-polymerase chain reaction for the presence of alphaviruses, orthobunyaviruses, and flaviviruses. Amplicons were sequenced and employed for identification of viral RNA by basic local alignment search tool search in GenBank. Results of these assays showed (1) the presence of West Nile virus in two pools of Culex pipiens mosquitoes, (2) the presence of RNA of two orthobunyaviruses, Tahyna virus in a pool of Ochlerotatus caspius mosquitoes and Batai virus in a pool of Anopheles maculipennis mosquitoes, and (3) the presence of flavivirus RNAs in pools of Oc. caspius, Aedes albopictus, and Aedes vexans mosquitoes; the sequences of these amplicons were most closely related to flaviviruses that have been detected only in mosquitoes and had no recognized vertebrate host (Aedes flavivirus, Culex flavivirus, and Kamiti River virus). ID nr. 4480 Pajoro° M, Pistone D, Epis S, Sassera D, Montagna M, Luzzago C, Lanfranchi P, Viganò R, Cerutti M, Vicari° N, Fabbi° M, Bandi C, Genchi C A survey for bacterial pathogens associated with Ixodes ricinus in north-western Italy Parassitologia. - Vol. 52 no 1-2 ( 2010). - p 178 Congresso Nazionale della Societa' Italiana di Parassitologia (26. : Perugia : 22-25 giugno 2010) Project PRC2008005 - Mapping Arthropod Vectors: on field evaluation of different monitoring methods Tamba Dr. Marco - Capofila - MINSAN - 2008 - 187000,00 EUR - 01/10/2009 0.00.00 30/09/2012 0.00.00 - 1 - N0 - CEREV - Tamba Dr. Marco - I 2 - N8 - Sezione diagnostica provinciale di Reggio Emilia - Luppi dr. Andrea - I 3 - M8 - Sezione diagnostica provinciale di Pavia - Fabbi Dr. Massimo - I 4 - G1 - Reparto di Virologia e Sierologia Specializzata - Lelli dr. Davide - I 5 - Centro Agricoltura Ambiente "G. NIcoli" - Bellini dr. Romeo - E 6 - Istituto Zoop. della Sicilia - Torina dr.ssa Alessandra - E First author Pajoro, Massimo ID nr. 4481 Benedetti° V, Cremonesi P, Ferrari° S, Castiglioni B, Fabbi° M, Vicari° N, Garbarino° C, Battisti A, Franco A, Feltrin F, Luini° M Methicillin-resistant Staphylococcus aureus (MRSA) from bovine milk samples Large Anim Rev. - Vol. 16 ( 2010). - p 67-70. - 22 ref bib Project PRC2008008 - Staphylococcus aureus: methicillin-resistance and molecular characterization of the strains isolated from pets and other diagnostic sources - Luini Dr. Mario - Capofila - MINSAN 2008 - 60000,00 EUR - 01/09/2009 0.00.00 - 31/08/2011 0.00.00 - 1 - M5 - Sezione diagnostica provinciale di Lodi - Luini Dr. Mario - I 2 - M8 - Sezione diagnostica provinciale di Pavia - Fabbi Dr. Massimo - I 3 - Istituto Zooprofilattico Lazio e Toscana - Battisti Dr. Antonio - E First author Benedetti, V Pag. 256 di 300 31/08/2011 Aim - Methicillin-resistant Staphylococcus aureus (MRSA) is one of the most important hospital and community-acquired pathogen. MRSA are also reported in farm animal and more recently reported as cause of bovine mastitis in Belgium and Germany. The aim of this study was to asses tbc presence of MRSA in some herds of tbc Po Valley and provi-de further characterization of tbc isolates. Results - Between October 2008 and February 2010, 2875 strains of S. aureus were isolateti from different herds. A sample of 425 strains, representative of different farrns of origin, were tested for methicillin-resistance by oxacillin agar diffusion test and nrecA gene PCR. 55 MRSA strains were isolated from 20 different dairy farms. Fourteen MRSA randomly selected, were genotyped for the presence of tbc main recognized virulence factors and characterized by spa-typing, MLST and SCCmec typing. The characterization of tbc MRSA strains showed higher frequency of ST398, t899 spa-typing, tbc typical profile of livestock-associated MRSA (LA-MRSA). A strain was belonging to genotype t355, ST152, associated with human infections. Four MRSA were enterotoxigenic. Conclusions - MRSA are present in several cattle herds in tbc Po Valley and may represent a reservoir of infection for humans, in particular for those involved in animal husbandry, and a foodborne risk through the contamination of the food chain. Management of contagious MRSA mastitis should consider strict contro] measures and eradication among effective options. ID nr. 4482 Canelli° E, Luppi° A, Lavazza° A, Lelli° D, Sozzi° E, Moreno° A, Gelmetti° D, Pascotto E, Sandri C, Magnone W, Cordioli° P Encephalomyocarditis virus infection in an Italian zoo Virol J. - Vol. 7 ( 2010). - p 64. - 21 bib ref Impact factor: 2,435 Project PRC2006001 - Development and implementation of epidemiological surveillance and risk analysis for primary production and processing of typical area food - Boni Dr. Paolo - Solo - MINSAN - 2006 - 1131023,00 EUR - 02/07/2007 0.00.00 - 01/07/2010 0.00.00 - 1 - M6 - Sezione diagnostica provinciale di Mantova - Nigrelli Dr. Arrigo - I 2 - N1 - Sezione diagnostica provinciale di Bologna - Belletti Dr. Gian Luca - I 3 - I3 - Reparto Microbiologia e Parassitologia degli Alimenti e Sorveglianza Epidemiologica - Boni Dr. Paolo - I 4 - H1 - Reparto di Biotecnologie - Brocchi Dr.ssa Emiliana - I 5 - G1 - Reparto di Virologia e Sierologia Specializzata - Cordioli Dr. Paolo - I First author Canelli, Elena A fatal Encephalomyocarditis virus (EMCV) infection epidemic involving fifteen primates occurred between October 2006 and February 2007 at the Natura Viva Zoo. This large open-field zoo park located near Lake Garda in Northern Italy hosts one thousand animals belonging to one hundred and fifty different species, including various lemur species. This lemur collection is the most relevant and rich in Italy. A second outbreak between September and November 2008 involved three lemurs. In all cases, the clinical signs were sudden deaths generally without any evident symptoms or only with mild unspecific clinical signs. Gross pathologic changes were characterized by myocarditis (diffuse or focal pallor of the myocardium), pulmonary congestion, emphysema, oedema and thoracic fluid. The EMCV was isolated and recognized as the causative agent of both outbreaks. The first outbreak in particular was associated with a rodent plague, confirming that rats are an important risk factor for the occurrence of the EMCV infection. ID nr. 4488 Mutze G, Kovaliski J, Butler K, Capucci° L, McPhee S The effect of rabbit population control programmes on the impact of rabbit haemorrhagic disease in south-eastern Australia J Appl Ecology. - Vol. 47 ( 2010). - p 1137-1146. - 30 bib ref Impact factor: 4,197 Pag. 257 di 300 31/08/2011 The effect of rabbit population density on transmission of rabbit haemorrhagic disease virus (RHDV) is a critical aspect of disease ecology for rabbit control and rabbit conservation. We examined the interaction between rabbit control and spread of RHDV and a non-pathogenic calicivirus (bCV) in Australian wild rabbit populations, and reviewed existing recommendations for control in this context. Rabbits were sampled at eight pairs of sites; from rabbit populations where densities had been reduced by conventional control and from matching uncontrolled populations. Sites chosen ranged from hot, arid areas where RHDV had greatly reduced rabbit numbers to cooler, higher-rainfall areas where rabbits remained more abundant. Virus activity was implied from antibody profiles in sera of surviving rabbits. Reducing population density by conventional control had a similar effect on disease transmission despite a seven-fold difference in initial density. Populations reduced by 70% or more had lower RHDV antibody prevalence in juvenile rabbits but not in adult rabbits, indicating that reducing rabbit density slowed but did not stop RHDV transmission. We found no interactions between rabbit control, RHDV and bCV that could be exploited to improve rabbit management. Synthesis and applications. Delayed RHDV infection in rabbit control sites is likely to be offset by higher mortality in older rabbits, so that conventional rabbit control does not reduce the impact of RHDV on rabbit populations. Only minor changes to delay the timing of summer rabbit control programmes in cooler areas of Australia are necessary to take best advantage of RHDV-induced reduction in rabbit numbers. For conservation management of rabbits in Europe, these findings indicate that RHDV may continue to have a severe impact on rabbit populations that have been reduced to low population density, but also raise the possibility that bCVs might be introduced to rabbit populations to aid their recovery. ID nr. 4489 Mutze G, Sinclair R, Peacock D, Kovaliski J, Capucci° L Does a benign calicivirus reduce the effectiveness of rabbit haemorrhagic disease virus (RHDV) in Australia? Experimental evidence from field releases of RHDV on bait Wildl Res. - Vol. 37 no 4 ( 2010). - p 311-319. - 30 bib ref Impact factor: 1,222 Context. European rabbits are serious environmental and agricultural pests throughout their range in Australia. Rabbit haemorrhagic disease virus (RHDV) greatly reduced rabbit numbers in arid central Australia but had less impact in cooler, higher-rainfall areas. RHDV-like benign caliciviruses (bCVs) have been implicated in limiting the impact of RHDV in the higher-rainfall regions of Australia and also in Europe Aims. Experimental releases of RHDV on bait were tested as a means of initiating disease outbreaks. Serological evidence of antibodies to bCVs was examined to determine whether they reduce mortality rates and/or spread of the released RHDV, and how that might influence the effectiveness of future RHDV releases for rabbit management. Methods. Four experimental releases were conducted in high-rainfall and coastal regions of southern Australia. Virus activity was implied from recapture rates and serological changes in marked rabbits, and genetic sequencing of virus recovered from dead rabbits. Changes in rabbit abundance were estimated from spotlight transect counts. Key results. Release of RHDV on bait produced disease outbreaks that challenged almost all animals within the general release area and spread up to 4 km beyond the release sites. Recapture rates were high in marked rabbits that possessed antibodies from previous exposure to RHDV and extremely low amongst rabbits that lacked any detectable antibodies. Rabbits carrying antibodies classified as being due to previous infection with bCVs had recapture rates that were dependent on circulating antibody titre and were ~55% of recapture rates in rabbits with clear antibodies to RHDV. Conclusions. This is the first quantified evidence that antibodies produced against bCVs provide significant protection against RHD outbreaks in field populations of rabbits. Implications. bCVs can greatly reduce the impact of RHDV on wildrabbit populations in Australia and presumably elsewhere. RHDV can be effectively released on bait although further releases are likely to be of minor or inconsistent benefit for controlling rabbit numbers where bCVs are common. ID nr. 4528 Mariella J, Pirrone A, Antenucci E, Archetti° I, Castagnetti C Haematological and biochemical parameters of periparturient mares Pag. 258 di 300 31/08/2011 VIII Congresso Nazionale Societa' Italiana Diagnostica di Riproduzione Animale (SIRA) : 17-18 Giugno 2010 Ozzano dell'emilia (BO) / [s.l. : Societa' Italiana Diagnostica di Riproduzione Animale (SIRA), 2010]. - p 87. 3 bib ref Congresso Nazionale Societa' Italiana Diagnostica di Riproduzione Animale (SIRA) (8. : Ozzano dell'emilia (BO) : 17-18 Giugno 2010) ID nr. 4529 Tosi° G, Taddei° R, Barbieri I, Fiorentini° L, Massi° P Caratterizzazione molecolare dei ceppi di virus della bronchite infettiva aviare isolati in Italia nel periodo 2007-2009 e nel primo bimestre del 2010 XLIX Convegno annuale Societa' Italiana di Patologia Aviare (SIPA) : 29-30 Aprile 2010 Forlì : atti / Parma : La Ducale, 2010. - p 217-224. - 8 ref bib Convegno annuale Societa' Italiana Patologia Aviare (SIPA) (49 : Forli' : 29-30 Aprile 2010) First author Tosi, Giovanni A molecular survey of IBV strains detected in Italy during the period 2007-2009 (and during the first two months of 2010) was performed. Serotype 793B is still the most prevalent IBV strain affected the italian poultry industry. However, an increase of the prevalence of QX strain and IT-02 strain was observed, especially during the beginning of this year. In addition, other IBV strains (D274 and B1648) reappeared in Italy. ID nr. 4537 Moreno° A, Fiorentini° L, Taddei° R, Barbieri° I, Tosi° G, Cordioli° P, Massi° P Pandemic H1N1 virus outbreak in a cat colony in Italy 4th annual meeting Epizone : "Bridges to the future" : 7-10 June, 2010 Saint-Malo, France : abstracts oral and poster presentations / [s.l. : s. n., c2010]. - p 179 Annual meeting Epizone (4th : Saint-Malo, France : 7-10 June, 2010) Project EPIZONE - "Network of excellence for epizootic disease diagnosis and control - "EPIZONE". - Van Rijn dr. Piet - UO - CE - 2005 - 14000000,00 EUR - 01/06/2006 0.00.00 - 31/05/2011 0.00.00 17 - U3 - REPARTO AGENTI AD ALTA DIFFUSIONE E BIOTECNOLOGIE - Bellini Dr.ssa Silvia I First author Moreno_Martin, Ana ID nr. 4539 Bertocchi° L, Dusi° G, Vismara° F, Daga° S, Arioli F, Casati A, Pompa G Preliminary observations of the presence of prednisolone in dairy cattle urine samples XXVI World Buiatrics Congress : November 14-18, 2010 Santiago, Chile : abstracts / [s.l. : s. n., 2010]. - cdrom World Buiatrics Congress (26th : Santiago, Chile : November 14-18, 2010) Project PRC2009010 - Impact of transportation stress on plasma levels of cortisol and cortisol-like molecules. - Bertocchi Dr. Luigi - Solo - MINSAN - 2009 - 81351,00 EUR - 15/09/2010 0.00.00 14/09/2011 0.00.00 - 1 - V6 - REPARTO PRODUZIONE PRIMARIA - Bertocchi Dr. Luigi - I 2 - V1 - REPARTO CHIMICA DEGLI ALIMENTI DI ORIGINE ANIMALE - Dusi Dr. Guglielmo - I 3 - NA - Reparto Merceologia degli Alimenti di origine animale (Bologna) - Fedrizzi Dr. Giorgio - I 4 - K1 - REPARTO ANIMALI DA LABORATORIO - Archetti Dr.ssa Ivonne - I First author Bertocchi, Luigi Objectives: In the years 2008-09 the Lombardy region has supported a research with the purpose to detect the presence of drug residues in urine and liver samples collected from cattle at the slaughterhouse. All liver Pag. 259 di 300 31/08/2011 samples resulted to be negative, while the 72% of samples of urine were positive for prednisolone presence. Due to the high number of positive samples it was hypothesized that the stress transport and pre-slaughter conditions could lead to the production of prednisolone in urine. In order to confirm this hypothesis bovine dairy cattle were treated with adrenocorticotropic hormone (ACTH) to simulate stress condition.. Materials and methods: Three Holstein Fresian cows (multiparous, non-pregnant, over 200 days lactating with 29 kg/day mild milk production), were selected. Urine samples were obtained by bladder catheterization before and after the double intramuscular treatment with 1 ml of Sinacthen (Defiant Pharmaceutical) which corresponds to 200 IU of ACTH. Samples were collected at the start of the investigation, after treatment and the time of slaughter (tab. 1). Urine analyses to detect predinisolone presence were performed at the Anabolic and drug residue laboratory of IZSLER with LC-MS/MS system and limit of quantification of 0.58 ng/ml. Results: At the start of the study, all cows were negative for two samples before treatment. In contrast,, all urine samples collected at two and six hours after treatment were positive with prednisolone values between 0.69 and 1,48 ppb. Moreover, with the exception of bovine no. 815 ( sample collected at 42nd hour) no drug was detected in the samples collected 18 and 42 hours after treatment. All samples after transport and slaughter resulted to be positive with prednisolone values between 0.63 and 0,82 ppb. Conclusions: The presence of prednisolone after ACTH treatment seems to suggest the possibility that this molecule could be physiologically produced. Other studies need to be performed in order to confirm this hypothesis and to clarify the metabolic pathway. ID nr. 4540 Benedetti° V, Parisi A, Miccolupo A, Castiglioni V, Vezzoli° F, Piccinini R, Scanziani E, Luini° M Microbiological and immunohystochemical study of Campylobacter jejuni intramammary infection in dairy cows XXVI World Buiatrics Congress : November 14-18, 2010 Santiago, Chile : abstracts / [s.l. : s. n., 2010]. - cdrom World Buiatrics Congress (26th : Santiago, Chile : November 14-18, 2010) First author Benedetti, Valentina Objective: Campylobacter jejuni is a major cause of food-borne disease in developed countries. Poultry products are considered the most common source of human infection, but unpasteurised cow milk is also a significant source. C. jejuni is a frequent inhabitant of cattle intestine, while intramammary infection was rarely reported. In our study, we evaluated microbiological and pathological findings in three cases of C. jejuni intramammary infection of dairy cows. Methodology: In three dairy farms showing the presence of C. jejuni in the bulk milk, composite or quarter milk samples were taken. At slaughter, udder, liver, bile and intestinal tracts were collected from 3 cows. Samples were cultured in Bolton broth and plated after 48h on mCCD and Skirrow agar after filtration through 0.45 µm membrane. Suspected colonies were Gram stained and identified with a C. coli / C. jejuni multiplex-PCR. All C. jejuni strains were genotyped using MLST. Tissue samples were processed for histological evaluation and stained with hematoxylin and eosin and immunohistochemically for detection of Campylobacter spp. antigen. Results: C. jejuni was isolated from the milk samples of 1 cow from each of the herds. C. jejuni was also isolated from the mammary tissue and the intestine of these 3 cows (cases A, B and C). The strains from the 3 farms belonged to different Sequence Types (STs). Moreover, the strains infecting the mammary gland were different from those identified in the intestine. In two cows, different STs were also evidenced in different intestinal tracts of the same animal. In the three cases examined, aspecific findings of mild to moderate neutrophilic MASTITIS, lymphoplasmacytic galactophoritis and lymphoplasmacytic enteritis were observed. Campylobacter spp. antigen was detectable by immunohistochemistry only in small intestine of case A and in small and large intestine of case B. Conclusions: MLST analysis evidenced a high diversity among isolates, both inter- and intra-herds. As expected, C. jejuni from milk and mammary tissues of each animal belonged to the same ST, but these mammary strains were different from those found in the intestine. The results of this study suggest that intramammary infection occur more likely from the environment by intracanalicular route, rather than from autogenous infection from intestine. Further, the presence of C. jejuni would not related with specific lesions of the mammary gland. Pag. 260 di 300 31/08/2011 ID nr. 4541 Martelli F, Toma S, Di_Bartolo I, Caprioli A, Ruggeri FM, Lelli° D, Bonci° M, Ostanello F Detection of Hepatitis E Virus (HEV) in Italian pigs displaying different pathological lesions Res Vet Sci. - Vol. 88 ( 2010). - p 492-496. - 39 bib ref Impact factor: 1,345 In this study we investigated the HEV prevalence in Italian pigs displaying different pathological lesions, possible risk factors related to the infection, and the possible relations occurring between HEV and other concomitant pig pathogens. Genetic characterization of some of the identified strains was also performed. Detection of HEV RNA was accomplished using a nested reverse-transcription polymerase chain reaction on bile samples from 137 pigs of 2–4 months of age submitted for diagnostic purposes. Forty-one of the 137 examined pigs (29.9%) tested positive for HEV RNA. Animals of 80–120 days of age showed a higher prevalence of HEV infection (46.9% against 20% of younger animals). No statistically significant correlations between HEV positivity and the presence of other pathological conditions detected at necropsy, or concomitant coinfections with PCV2 and/or PRRSV were detected. All identified strains belonged to genotype 3, and were similar to other HEV subtypes 3e, 3f, 3c circulating in Europe. ID nr. 4542 Sozzi° E, Barbieri° I, Lavazza° A, Lelli° D, Moreno° A, Canelli° E, Bugnetti° M, Cordioli° P Molecular characterization and phylogenetic analysis of VP1 of Porcine Enteric Picornaviruses isolates in Italy Transboundary Emerg Dis. - Vol. 57 ( 2010). - p 434-442. - 23 bib ref Impact factor: 1,854 First author Sozzi, Enrica Porcine enterovirus (PEV), Porcine Teschovirus and Porcine sapelovirus, belonging to the family Picornaviridae, are ubiquitous and mainly cause asymptomatic infections in pigs. In this study, a total of 40 Italian porcine picornavirus isolates were characterized by sequencing the capsid VP1-encoding gene. This procedure turned out to be a useful diagnostic tool for the molecular identification of porcine enterovirus, teschovirus and sapelovirus strains and for the study of molecular epidemiology and evolution of these viruses confirming the possibility of correlating virus genotype to serotype. ID nr. 4543 Finazzi° G, Daminelli P, Oliverio° E, De_Nadai° V, Monastero° P, Rossi° F, Bertasi° B, Losio° MN, Boni° P Dynamics of Listeria monocytogenes, Salmonella typhimurium and Escherichia coli O157:H7 during the production of 'Nduja Ind Aliment (Pinerolo). - Vol. 49 n 507 ( 2010). - p 38-42. - 7 bib ref First author Finazzi, Guido The aim of this survey was to evaluate Listeria monocytogenes, Salmonella typhimurium and Escherichia coli O157:H7 fate during production process of 'Nduia, traditional Italian Salami. For this purpose the meat kneading provided by Salumificio artigianale F.lli Pugliese was contaminated with mixtures of these microorgonisms, then bagged and seasoned according to the processing of the producer. The results of this challenge test showed thot the seasoning of the product reduces the concentration of pathogens artificially added. Pag. 261 di 300 31/08/2011 ID nr. 4544 Andreoli E, Bertoletti° I, Bianchi° A, Mattiello S Sanitary survey of wild red deer Cervus elaphus hunted in Sondrio Province (Italy) Folia Vet. - Vol. 54 no 1 ( 2010). - p 37-41. - 33 bib ref To investigate the health conditions of the wild red deer (Cervus elaphus) in Sondrio Province (Central Italian Alps) 43 blood samples, 48 lung samples, 37 pulmonary lymph nodes, 34 fragments of diaphragms, 13 samples of small intestines and 30 faecal samples were collected from 61 red deer culled during the 2006 hunting season (lst September—15th December). This study revealed the presence of respiratory syncytial virus, Leptospira interrogans serovar grippotyphosa, Mvcobacterium avium complex and gastrointestinal parasites, and confirmed the absence of Trichinella sp., bovine pestivirus, bovine herpesvirus type 1, parainfluenza virus type 3, Mrcobacterium bovis and M. avium subsp. para tuberculosrs. More investigations are required to confirm the presence of Brucella spp.. ID nr. 4545 Ricchi° M, Goretti M, Branda E, Cammi° G, Garbarino° CA, Turchetti B, Moroni P, Arrigoni° N, Buzzini P Molecular characterization of Prototheca strains isolated from Italian dairy herds J Dairy Sci. - Vol. 93 ( 2010). - p 4625-4631. - 31 bib ref Impact factor: 2,463 First author Ricchi, Matteo One hundred sixty-one Prototheca spp. strains isolated from composite milk and barn-surrounding environmental samples (bedding, feces, drinking, or washing water, surface swabs) of 24 Italian dairy herds were characterized by genotype-specific PCR analysis. Overall, 97.2% of strains isolated from composite milk samples were characterized as Prototheca zopfii genotype 2, confirming its role as the main mastitis pathogen, whereas Prototheca blaschkeae was only sporadically isolated (2.8%). Regarding environmental sampling, 84.9% of isolates belonged to P. zopfii genotype 2, 13.2% to P. blaschkeae, and 1.9% to P. zopfii genotype 1. The data herein contradict previous hypotheses about the supposed exclusive role of P. zopfii genotype 2 as the causative agent of protothecal mastitis and, on the contrary, confirm the hypothesis that such pathology could be caused by P. blaschkeae in a few instances. ID nr. 4546 Maioli° G, Bonilauri° P, Spaggiari B, De_Filippo° F, Luppi° A, Calzolari° M, Dottori° M Ticks infesting wild animals in Northern Italy 9th conference of the European Wildlife Disease Association (EWDA) " Healthy wildlife, healthy people" : Vlieland, The Netherlands, 13 to 16 September 2010 / [s.l. : s.n., 2010]. - p 94 Conference of the European Wildlife Disease Association (EWDA) (9th : Vlieland, The Netherlands : 13 to 16 September 2010) Project PRC2008005 - Mapping Arthropod Vectors: on field evaluation of different monitoring methods Tamba Dr. Marco - Capofila - MINSAN - 2008 - 187000,00 EUR - 01/10/2009 0.00.00 30/09/2012 0.00.00 - 1 - N0 - CEREV - Tamba Dr. Marco - I 2 - N8 - Sezione diagnostica provinciale di Reggio Emilia - Luppi dr. Andrea - I 3 - M8 - Sezione diagnostica provinciale di Pavia - Fabbi Dr. Massimo - I 4 - G1 - Reparto di Virologia e Sierologia Specializzata - Lelli dr. Davide - I 5 - Centro Agricoltura Ambiente "G. NIcoli" - Bellini dr. Romeo - E 6 - Istituto Zoop. della Sicilia - Torina dr.ssa Alessandra - E First author Maioli, Giulia Pag. 262 di 300 31/08/2011 Background: The aim of this study was to provide more data on the Ixodid fauna of wildlife collected in Emilia Romagna and Lombardia in order to better understand their ecology. Methods: Ixodid ticks were collected from roe deer (Capreolus capreolus), wild boar (Sus scrofa), red deer (Cervus elaphus), fallow deer (Dama dama), red fox (Vulpes vulpes), wolf (Canis lupus), hedgehog (Erinaceus europaeus), shrew (genus Sorex), badger (Meles meles) and european brown hare (Lepus europaeus). Ticks were removed and identified following taxonomic standard keys. Prevalence differences among host species, tick species and collection period were tested by 2 test. Results: Ticks were collected from August 2008 until December 2009. A total of 3,225 ticks removed from 491 animals were identified. Ticks belonged to nine species: Ixodes ricinus (n=2,222; 68.9%), Rhipicephalus sanguineus (n=647; 20%), Dermacentor marginatus (n=172; 5.3%), Ixodes canisuga (n=119; 3.7%), I. hexagonus (n=53; 1.64%), Hyalomma marginatum (n=6; 0.18%), Haemaphisalys punctata (n=3), I. acuminatus (n=2), Hae. concinna (n=1). I. ricinus tick represents the most frequently detected species in our habitats. Also, we found that D. marginatus is often found on wild boar (34/44); I. canisuga parasites fox only and, interestingly, we found some specimens of the brown dog tick (Rh. sanguineus) on foxes, roe deer, wild boars and hares. Significant difference (p<0.01) was found in seasonality for I. ricinus, Rh. sanguineus and D. marginatus, which were the more frequently sampled species . Conclusions: Our data confirm that I. ricinus is the dominant species in roe deer, red deer and hares in Emilia Romagna and Lombardia regions, while D. marginatus is strongly associated with wild boar. Passive surveillance on hunted wild fauna could provide a useful and economic tool to collect data on ticks and to achieve a better understanding of tick host preference for wild vertebrate species. ID nr. 4547 Chiari° M, Cavadini° P, Barbieri° I, Grilli G, Ferrazzi V, Zanoni V, Gioia E, Capucci° L, Lavazza° A Data supporting the active role of cottontail (Sylvilagus floridanus) in the epidemiology of EBHS7 9th conference of the European Wildlife Disease Association (EWDA) " Healthy wildlife, healthy people" : Vlieland, The Netherlands, 13 to 16 September 2010 / [s.l. : s.n., 2010]. - p 81 Conference of the European Wildlife Disease Association (EWDA) (9th : Vlieland, The Netherlands : 13 to 16 September 2010) First author Chiari, Mario Background: The eastern cottontail (Sylvilagus floridanus), an American lagomorph, was illegally introduced in Piemonte on 1966 and is currently widespread in several areas of North-Central Italy. A seroepidemiological survey was conducted in Alessandria province on 2000 to determine the role of cottontail as host or reservoir of hares’ pathogens. As main outcome it was found that cottontails could have been naturally infected with EBHSV, developing a specific immunity. Thereafter, the infection of seronegative cottontails proved their susceptibility to EBHSV in experimental conditions. Aim of this work is an to report the results of serological surveys for confirming the previous data in a more wide territory; b) to report the first natural EBHS outbreak in a mixed population of hares and cottontail and c) the molecular characterization of the virus identified in dead animals. Methods: From 2003 to 2009, 148 serum samples and 37 organs of cottontails, captured or found dead in North- Central Italy were analyzed. Serological (cELISA) and virological (sandwich ELISA, western blot and PCR) tests were performed using methods developed at the OIE Reference Laboratory. On late 2009 an EBHS outbreak occurred in a fenced area near Milano where a high density of both hares and cottontails was present. Animals found dead were examined and the EBHSV identified strains from both species were amplified, sequenced and compared. Results: Serological investigations confirmed the presence of positive anti-EBHS titres in naturally infected cottontails. Moreover, during the EBHS outbreak, at least one cottontail found dead show typical gross lesions and tested virologically positive for EBHS (liver and spleen). The viral strains from hares and cottontail were amplified by PCR and VP60 products were sequenced, showing 100% identity. Conclusions: It is even more evident that cottontail could be a natural host of EBHSV and may transmit it to hares. ID nr. 4548 Gelmini° L, Bassi° S, Carra° E, D’Incau° M, Fiocchi A, Sala L, Magistrali° L, Ferri M, Pag. 263 di 300 31/08/2011 Zicavo° A, Pongolini° S Salmonella Hessarek in starling (Sturnus vulgaris): diagnosis and molecular study of outbreak and collection isolates 9th conference of the European Wildlife Disease Association (EWDA) " Healthy wildlife, healthy people" : Vlieland, The Netherlands, 13 to 16 September 2010 / [s.l. : s.n., 2010]. - p 77 Conference of the European Wildlife Disease Association (EWDA) (9th : Vlieland, The Netherlands : 13 to 16 September 2010) First author Gelmini, Luca Background: Salmonella enterica subsp. enterica serovar Hessarek (S. Hessarek) belongs to serogroup B and is considered a rare serovar. Firstly identified as a new serovar following isolation from a dead crow (Corvus corax) in Iran, it has been mostly isolated from starling (Sturnus vulgaris) since, in this species it exhibits high virulence giving rise to outbreaks sometimes characterized by significant mortality. Therefore, It is considered a serovar with high host specificity. In this report we describe an outbreak of S. Hessarek infection in starlings occurred in October 2009 in the city of Modena, Emilia-Romagna Region (Italy). Methods: Thirty-two dead starlings were subjected to a diagnostic protocol including necropsy, bacteriological, virological and parassitological examination. S. Hessarek was isolated from thirty-one birds and ten isolates were genotyped by PFGE with XbaI and AvrII endonucleases. Further fourteen collection-isolates originating from diverse places and time-periods were genotyped with the same method to assess the genetic variability of this serovar and to elucidate possible epidemiological relationships among isolates. Results: Hepatomegaly with small foci of necrosis in the liver, splenomegaly, focal haemorrhages of the pericardium and lungs and intestinal congestion were observed at necropsy. S. Hessarek was isolated in pure culture from all tested organs. Virological tests for Newcastle Disease, West-Nile Disease Flavivirus and type A avian influenza were negative. Parassitological tests were negative for all animals but one. All ten outbreak isolates showed the same XbaI and AvrII PFGE profiles. The fourteen collection strains were grouped into three different profiles with both enzymes, among them six belonged to the same genotype as the outbreak isolates. Conclusions: Our report confirms that S. Hessarek is a pathogen capable of causing an acute and deadly disease in starling. Considerations regarding the genetic variability of tested isolates are presented in the poster. ID nr. 4549 Spaggiari B, Marzi D, Merialdi° G, Cuccurese A, Massirio I, Anniballi F, Bano L, Defilippo° F, Dottori° M Clostridium botulinum type C outbreak in wild mammals in Italy 9th conference of the European Wildlife Disease Association (EWDA) " Healthy wildlife, healthy people" : Vlieland, The Netherlands, 13 to 16 September 2010 / [s.l. : s.n., 2010]. - p 72 Conference of the European Wildlife Disease Association (EWDA) (9th : Vlieland, The Netherlands : 13 to 16 September 2010) During the late summer of 2008 an uncommon increase of the mortality rate of different avian species was observed along Crostolo and Rodano rivers in Emilia Romagna region, Italy (lat. 44°67’64’’N, long. 10°62’56’’E). The largest part of the affected birds was represented by mallards (Anas platyrhynchos). Other species involved were little egret (Egretta garzetta), common kingfisher (Alcedo atthis), great cormorant (Phalacrocorax carbo), common moorhen (Gallinula chloropus), yellow wagtail (Motacilla flava), rock pigeon (Columba livia), European magpie (Pica pica), hooded crow (Corvus corone cornix) and common pheasant (Phasianus colchicus). In addition to avian species, 21 dead coypus (Myocastor coypus) and 4 Norway rats (Rattus norvegicus) were retrieved in the areas of the epizootic. Overall 26 birds, 4 coypus and 1 rat were submitted for necropsy, bacteriological, toxicological and virological examinations. Sera collected from 3 moribund mallards and sera obtained from heart clots of dead mammals were filtered through a 0.22 µm filter and tested for Clostridium botulinum neurotoxins by mouse test. Intestinal and liver samples collected from birds and mammals carcasses were tested for the presence of C. botulinum by bacteriological procedures and PCR for type A, B, C, D, E, F. All tested sera resulted positive for C. botulinum type C neurotoxin and C. botulinum type C was isolated and detected by PCR. The remaining investigations resulted negative. C. botulinum type C has been occasionally observed in mammals such as cattle, cats, dogs and horses but, to the authors’ knowledge, this is the first report of natural acquired botulism in coypus and rats connected with Pag. 264 di 300 31/08/2011 an avian botulism outbreak. Water and plant contamination from infected carcasses or maggots could have lead to mammal species intoxication. This is especially true for coypus that are strictly vegetarian, while rats intoxication could also have derived from the ingestion of maggots or from scavenging toxin-laden carcasses. ID nr. 4550 Maioli° G, Fontana° MC, Luppi° A, Zanin D, Rugna° G, Renzi° M, Merialdi° G Cluster of cysticercosis (Taenia pisiformis) in European brown hares in Northern Italy 9th conference of the European Wildlife Disease Association (EWDA) " Healthy wildlife, healthy people" : Vlieland, The Netherlands, 13 to 16 September 2010 / [s.l. : s.n., 2010]. - p 61 Conference of the European Wildlife Disease Association (EWDA) (9th : Vlieland, The Netherlands : 13 to 16 September 2010) Background: The cestode Taenia pisiformis (Bloch, 1780) occurs in the small intestine of domestic and wild carnivores (dog, fox and rarely in the cat). The intermediate hosts are lagomorphs, primarily rabbits and hares but also rodents. In this work the Authors report a cluster of cysticercosis due to Cysticercus pisiformis in hares from an area where this pathology has been previously found sporadically. Methods: Between October 2008 and February 2010 47 brown hares, hunted or found dead in north area of Bologna province, were collected and submitted to necropsy at the laboratories of IZSLER. Furthermore, 8 foxes from the same location were necropsied and checked for the presence of intestinal helmints. Cysticerci and adult taenids were morphologically identified following standard taxonomic keys. Results: At necropsy, 20 (42.5%) hares from eight municipalities were found infested by C. pisiformis. These animals showed considerable weight loss and bacteriological and virological investigations showed negative results. Cysticerci were found in liver, abdominal cavity and mesentery of the lower digestive tract. All the animals were infested by more than 20 cysticerci. Most of the cases (10/20) were located in two neighbouring municipalities. Only 1 fox out of 8 examined carried two adults of T. pisiformis in the small intestine. The other 7 foxes were infested by Mesocestoides lineatum and Toxocara canis. Conclusions: The increased prevalence of C. pisiformis in the study area may have different causes such as: level of environment contamination, dispersion of eggs, egg survival, age and immune response of the host, as well as densities of both definitive and intermediate hosts. In the study area, the hare population decreased of 39,4% in 2008-2009, whilst the fox population increased. Furthermore the practice allowing dog to eat the viscera of game animals may affect the prevalence of infection in the hare population. ID nr. 4551 Chiari° M, Zanoni° M, Salogni° C, Giovannini° S, Alborali° L, Lavazza° A Presence of Trichinella britovi in a red fox (Vulpes vulpes) in Brescia Province (Italy) 9th conference of the European Wildlife Disease Association (EWDA) " Healthy wildlife, healthy people" : Vlieland, The Netherlands, 13 to 16 September 2010 / [s.l. : s.n., 2010]. - p 66 Conference of the European Wildlife Disease Association (EWDA) (9th : Vlieland, The Netherlands : 13 to 16 September 2010) First author Chiari, Mario Background: In Italy foxes (Vulpes vulpes) are present and abundant everywhere and hold a high position in the animal food chain. Since they represent the main indicator species of the local presence of Trichinella spp., especially T. britovi, dead or hunted foxes are often used in monitoring programmes. Methods: In Brescia province, the agreement among official veterinary service, public administrators and hunter associations, made possible sampling the carcases of 228 foxes found death or hunted, between June 2009May 2010. Around 50% were coming from areas of > 400 mtr altitude. The presence of rabies was firstly excluded; then, a pool of 10 gr of muscles (diaphragm, masseter, lower hind limb) was analysed for the presence of Trichinella spp larvae. According to the EC 2075/2005 directives, Trichineasy (Syntec International) method was used. Such machine grinds, digests and filters the samples and deposits the material on a membrane filter, which is stained with a fluorescent reagent to detect trichina larvae. The Pag. 265 di 300 31/08/2011 species identification was performed by the National Reference Laboratory for Trichinella using a specific multiplex-PCR. Results: The prevalence was very low: larvae of Trichinella spp. were found in just one animal. This was a young male, with characteristic lesions of sarcoptic mange, found dead in Sellero, a town in Vallecamonica at 600 meters on sea level. The load was 45 larvae/gr of muscle analyzed and they were further characterized as T. britovi. Conclusions: Whereas foxes have a low importance for meat consumption, the absence of T. spiralis in wild carnivores is an essential step in the monitoring programs of pigs for acquiring the status of free area at regional level. The presence of T. britovi is indicative of the circulation of this zoonotic parasite in the wild circle even if both the prevalence (0.5%) and the age of infected animals (young) were different than expected. ID nr. 4552 Chiari° M, Zanoni° M, D'Incau° M, Salogni° C, Giovannini° S, Alborali° L, Lavazza° A Isolation of Salmonella spp. from Red Fox (Vulpes vulpes) and Badger (Meles meles) in Lombardy (North Italy) 9th conference of the European Wildlife Disease Association (EWDA) " Healthy wildlife, healthy people" : Vlieland, The Netherlands, 13 to 16 September 2010 / [s.l. : s.n., 2010]. - p 49 Conference of the European Wildlife Disease Association (EWDA) (9th : Vlieland, The Netherlands : 13 to 16 September 2010) First author Chiari, Mario Background: Salmonella has been isolated from a wide variety of wild animals, both mammals and birds. It may cause death in some of them, mainly small passerines, whereas some wild carnivores as red fox (Vulpes vulpes) and badger (Meles meles) may act as indicator species to determine the presence of Salmonella in the local environment. Methods: In Lombardy the agreement among official veterinary service, public administrators and hunter associations, made possible sampling the carcases of foxes (Vulpes vulpes) and badgers (Meles meles) found death or hunted, between June 2009-May 2010. The presence of rabies was firstly excluded on all samples (511 red foxes and 18 badgers) and then further analysis were done. Salmonella was isolated from faecal samples using both the mandatory methods for Salmonella monitoring and control plan for primary productions (AnnexD ISO 6579:2002) and the in-house isolation procedure based on the enrichment with Rappaport-Vassiliadis Broth and plating on Hecktoen enteric agar. Salmonella identification was performed with biochemical tests (growing on TSI, ONPG test, identification by multitest kit) and serotyping. Results: Salmonella was isolated from 29 foxes (6%) and 2 badgers. Sixteen different serotypes were identified: 12/31 (39%) isolates belonged to serotypes (Typhimurium, Enteritidis, Infantis)commonly found in men. Others serotypes could be either sporadically find in man (Derby, Muenchen, Napoli, Livingston) or often find in water or in wild animals, in particular reptiles (Houtenae, Diarizonae, Anatum, Veneziana). Conclusions: The behaviour and feeding habits of animals influence the likelihood of being infected with Salmonella Foxes and badgers, that are at the top of the food chain in our region, could be infected by eating carcasses contaminated by Salmonella or by different anthropogenic environmental contamination, as foodstuff residues. Therefore, wild carnivores are an important reservoir of pathogenic serotypes of Salmonella, and may be a risk for human and livestock. ID nr. 4553 Calzolari° M, Bonilauri° P, Bellini R, Albieri A, Defilippo° F, Maioli° G, Galletti° G, Gelati A, Barbieri° I, Tamba° M, Lelli° D, Carra° E, Cordioli° P, Angelini° P, Dottori° M Evidence of simultaneous circulation of West Nile and Usutu Viruses in mosquitoes sampled in Emilia-Romagna Region (Italy) in 2009 PLoS One. - Vol. 5 no 12 ( 2010). - p e14324. - 52 bib ref Impact factor: 4,351 Project PRF2007303 STRAT P3 - Zoonosis and exotic viral diseases : one medicine approach ( human and vetrinary ) P3 Chikungunya virus infection: epidemiological and clinical features - Caprioli dr. Alfredo - UO - MINSAN - 2007 - 2500000,00 EUR - 01/07/2009 0.00.00 - 30/06/2011 0.00.00 - 1 - N8 - Pag. 266 di 300 31/08/2011 Sezione diagnostica provinciale di Reggio Emilia - Dottori Dr. Michele - I First author Calzolari, Mattia In recent years human diseases due to mosquito-borne viruses were increasingly reported in Emilia-Romagna region (Italy), from the chikungunya virus in 2007 to the West Nile virus (WNV) in 2008. An extensive entomological survey was performed in 2009 to establish the presence and distribution of mosquito arboviruses in this region, with particular reference to flaviviruses. Methodology/Principal Findings From May 6 to October 31, a total of 190,516 mosquitoes were sampled in georeferenced stations, grouped in 1,789 pools according date of collection, location, and species, and analyzed by reverse transcription polymerase chain reaction (RT-PCR) to detect the presence of RNA belong to Flavivirus genus. WNV was detected in 27 mosquito pools, producing sequences similar to those of birds and human strains obtained in 2008 outbreak, pointed out the probable virus overwintering. Isolation of WNV was achieved from one of these pools. Moreover 56 pools of mosquitoes tested positive for Usutu virus (USUV). Most PCR positive pools consisted of Culex pipiens, which also was the most analyzed mosquito species (81.4% of specimens); interestingly, USUV RNA was also found in two Aedes albopictus mosquito pools. Simultaneous circulation of WNV and USUV in the survey area was highlighted by occurrence of 8 mosquito WNV- and USUV-positive pools and by the overlaying of the viruses “hot spots”, obtained by kernel density estimation (KDE) analysis. Land use of sampled stations pointed out a higher proportion of WNV-positive Cx. pipiens pool in rural environments respect the provenience of total sampled pool, while the USUV-positive pools were uniformly captured in the different environments. Conclusions/Significance Obtained data highlighting the possible role of Cx. pipiens mosquito as the main vector for WNV and USUV in Northern Italy, and the possible involvement of Ae. albopictus mosquito in USUV cycle. The described mosquito-based surveillance could constitute the foundation for a public health alert system targeting mosquito borne arboviruses. ID nr. 4554 Ciminiello P, Dell'Aversano C, Fattorusso E, Forino M, Tartaglione L, Boschetti L, Rubini° S, Cangini M, Pigozzi S, Poletti R Complex toxin profile of Mytilus galloprovincialis from the Adriatic sea revealed by LC–MS Toxicon. - Vol. 55 ( 2010). - p 280-288. - 36 bib ref Impact factor: 2,128 This paper reports on the determination of toxin profile of mussels (Mytilus galloprovincialis) collected in November–December 2003 along the Emilia Romagna coasts (Italy) when a high concentration of Alexandrium ostenfeldii cells was detected in seawater. Detailed liquid chromatography–mass spectrometry (LC–MS) analyses were performed on the crude extracts in both selected ion monitoring (SIM) and multiple reaction monitoring (MRM) modes. They revealed that M. galloprovincialis had accumulated the three major spirolides produced by the alga, namely 13-desMethyl spirolide C, 13,19-didesMethyl spirolide C and 27hydroxy-13,19-didesMethyl spirolide C, which fully accounted for toxicity of lipophilic extracts shown in mouse bioassay. Interestingly, yessotoxin (YTX) and its analogues were still present in mussel polar extracts but YTX itself was not the major toxin contained in mussels. The presence of pectenotoxin-2 seco acid (PTX-2sa) and its putative epimer was also assessed. The presence of azaspiracids, never reported from the Adriatic sea, as well as of diarrhetic shellfish poisoning toxins (okadaic acid, dinophysistoxins and OA esters) and domoic acid, long known as contaminants of Adriatic mussels, was also investigated. ID nr. 4558 Calistri P, Giovannini A, Savini G, Bonfanti l, Cordioli° P, Lelli R, Caporale V Antibody response in cattle vaccinated against bluetongue serotype 8 in Italy Transboundary Emerg Dis. - Vol. 57 no 3 ( 2010). - p 180-184. - 28 bib ref Impact factor: 1,854 To assess the immunogenicity of Zulvac® 8 Bovis (a commercial inactivated vaccine against bluetongue virus Pag. 267 di 300 31/08/2011 serotype 8 – BTV8) under field conditions, 71 cattle vaccinated according to manufacturer schedule in Verona province (Italy) were tested for the presence of BTV8 neutralizing antibodies at 21, 29, 36, 43, 49, 102 and 201 days post-vaccination (dpv). Another group of 528 BTV8 vaccinated cattle in Mantova province (Italy) was also tested once between 113 and 174 dpv. The vaccine was able to elicit an immune response in 69 (97.2%) and 346 (65.5%) animals of the Verona and Mantova groups, respectively . ID nr. 4559 Calistri P, Giovannini A, Savini G, Monaco F, Bonfanti L, Ceolin C, Terregino C, Tamba° M, Cordioli° P, Lelli R West Nile Virus transmission in 2008 in North-Eastern Italy Zoonoses Public Health. - Vol. 57 no 3 ( 2010). - p 211-219. - 33 bib ref Impact factor: 1,912 Project PRC2008005 - Mapping Arthropod Vectors: on field evaluation of different monitoring methods Tamba Dr. Marco - Capofila - MINSAN - 2008 - 187000,00 EUR - 01/10/2009 0.00.00 30/09/2012 0.00.00 - 1 - N0 - CEREV - Tamba Dr. Marco - I 2 - N8 - Sezione diagnostica provinciale di Reggio Emilia - Luppi dr. Andrea - I 3 - M8 - Sezione diagnostica provinciale di Pavia - Fabbi Dr. Massimo - I 4 - G1 - Reparto di Virologia e Sierologia Specializzata - Lelli dr. Davide - I 5 - Centro Agricoltura Ambiente "G. NIcoli" - Bellini dr. Romeo - E 6 - Istituto Zoop. della Sicilia - Torina dr.ssa Alessandra - E After 10 years, West Nile virus (WNV) re-emerged in Italy in August 2008. As on 31 December 2008, the infection affected eight Provinces in three Regions (Emilia Romagna, Veneto, Lombardy), where a total of 794 cases of WNV infection in 251 equine stables were detected on the basis of the clinical signs and as a result of a serological screening in horses living in the area. Only 4.0% (32/794) of the serologically positive animals showed clinical signs, and the 32 clinical cases were reported in 18 different farms. The observed case-fatality rate was 15.6% (5/32). The confirmed clinical cases were detected from end August to mid October. Significant levels of positivity by RT-PCR were also observed in magpies (Pica pica) (9.1%, 95% confidence levels: 6.1–13.4%), carrion crows (Corvus corone) (7.4%, 95% confidence levels: 3.6–14.4%) and rock pigeons (Columba livia) (12.9%, 95% confidence levels: 7.6–21.2%). ID nr. 4560 Piccirillo A, Pasotto D, Martin° AM, Cordioli° P Serological survey for influenza type A viruses in domestic dogs (Canis lupus familiaris) and cats (Felis catus) in North-Eastern Italy Zoonoses Public Health. - Vol. 57 no 4 ( 2010). - p 239-243. - 33 bib ref Impact factor: 1,912 To ascertain the potential transmission of influenza A viruses to dogs and cats, a serological survey was carried out in North-eastern Italy. In a 4-year period, 637 serum samples were screened using a Mab-based competitive ELISA for anti-nucleoprotein A (NPA) antibody detection of influenza viruses. No evidence of antiNPA antibodies was observed. ID nr. 4561 Elia G, Decaro N, Martella V, Lorusso E, Mari V, Lucente SM, Cordioli° P, Buonavoglia C An ELISA based on recombinant spike protein S for the detection of antibodies to transmissible gastroenteritis virus of swine-like canine coronaviruses Pag. 268 di 300 31/08/2011 J Virol Methods. - Vol. 163 ( 2010). - p 309-312. - 19 bib ref Impact factor: 2,133 Project PRF2007202 - Mammal coronaviruses: molecular epidemiology, vaccine development And implications for animal and human health - Cordioli Dr. Paolo - Capofila - MINSAN - 2007 300000,00 EUR - 01/09/2009 0.00.00 - 31/08/2011 0.00.00 - 1 - U1 - REPARTO VIROLOGIA Cordioli Dr. Paolo - I 2 - Università di Bari - Dipartimento di Sanità Pubblica e Zootecnica - Decaro Prof. Nicola - E 3 - IstitutoZooprofilattico della Sardegna - Oggiano Dr.ssa Annalisa - E 4 - Istituto Zooprofilattico della Sicilia - Guercio Dr.ssa Annalisa - E 5 - Istituo Zooprofilattico delle Venezie - Nardelli Dr. Stefano - E Recombinant canine coronaviruses, resembling the transmissible gastroenteritis virus of swine (TGEV) in a 5' fragment of the S glycoprotein, have been detected recently and showed to be present in canine populations. The 5' fragment of the S protein (S') of a TGEV-like canine coronavirus (CCoV), strain 174/06, was expressed in an Escherichia coli cell-free system. The purified recombinant polypeptide was employed to develop an ELISA test for the detection of TGEV-like CCoV-specific antibodies in dog sera. Four canine sera positive for TGEV-like CCoV, six sera positive to classical CCoV-II strains and 10 negative control sera were examined. The recombinant S' was not recognized by antibodies to classical CCoV-II, as only sera from dogs infected experimentally with TGEV-like CCoV reacted strongly with the recombinant S' polypeptide whereas dog sera with antibodies to classical CCoV-II did not react. As classical CCoV-II and TEGV-like CCoVs are related antigenically, the recombinant S' ELISA is a useful method to investigate serologically the prevalence of TGEV-like CCoVs in dogs. ID nr. 4566 Moreno° AM, Barbieri° I, Chiapponi° C, Sozzi° E, Foni° E, Zanoni° MG, Lelli° D, Cordioli° P Genetic evolution of italian H1N2 swine influenza virus during 1998-2009: presence of new reassortant strains 4th annual meeting Epizone : "Bridges to the future" : 7-10 June, 2010 Saint-Malo, France : abstracts oral and poster presentations / [s.l. : s. n., c2010]. - p 74. - 4 bib ref Annual meeting Epizone (4th : Saint-Malo, France : 7-10 June, 2010) First author Moreno_Martin, Ana ID nr. 4567 Razzuoli E, Villa R, Sozzi E, Amadori° M RT-Real Time PCR for detection of porcine alpha and beta interferon genes 5th Epizone theme 5 meeting : November 3-5, 2010 Copenhagen / [s.l. : s. n., c2010]. - p 15 Epizone theme 5 meeting (5th : Copenhagen : 3-5 November, 2010) Project EPIZONE - "Network of excellence for epizootic disease diagnosis and control - "EPIZONE". - Van Rijn dr. Piet - UO - CE - 2005 - 14000000,00 EUR - 01/06/2006 0.00.00 - 31/05/2011 0.00.00 17 - U3 - REPARTO AGENTI AD ALTA DIFFUSIONE E BIOTECNOLOGIE - Bellini Dr.ssa Silvia I First author Amadori, Massimo A few studies provided convincing evidence of constitutive expression of type I interferons (IFNs) in humans and mice, and of the steady-state role of these cytokines under health conditions. These results were later confirmed in pigs, too. In line with this tenet, low levels of IFN aiphalbeta can be detected in swine tissues in the absence of any specific inducer. These studies are compounded by the utmost complexity of type 1 IFN system (including among others 17 IFN-alpha genes in pigs), which demands proper research tools. This prompted us to anaiyze the availabie protocols and to develop a relevant, robust reverse transcription (RT), Real Time PCR detection system for amplification of ali porcine IFN aiphalbeta genes. The adopted test procedure is user-friendly and provides the panel of gene expression of one subject in a microtitre piate. Also, Pag. 269 di 300 31/08/2011 a proper use of PCR fluorochromes (SYBR vs. EVA Green supermix) enables users to shift from qualitative to quantitative test protocols, in case of low-expression IFN genes like IFN A3. This is accounted for by the much higher sensitivity of the test protocol with EVA Green supermix. Interestingly, IFN beta showed the highest frequency of expression in line with its definition of "immediate early" gene in humans and mice. Results indicate that the outiined procedure can detect both constitutively expressed and virus-induced IFN aiphalbeta genes, as well as the impact of environmental, non-infectious stressors on the previous profile of constitutive, Type I IFN expression.. ID nr. 4568 Gamba° V, Benetti C, Buratti R, Curatolo° M, Galarini R Development and validation of a screening ELISA test for the determination of ten quinolones in muscle, egg and milk 6th Intenational Symposium on Hormone and Veterinary Drug Residue Analysis : Ghent, Belgium, June 1-4, 2010 : abstract book / [s.l. : s.n., 2010]. - p 97 Intenational Symposium on Hormone and Veterinary Drug Residue Analysis (6th. : Ghent, Belgium : June 1-4, 2010) First author Gamba, Daniela Quinolones are a group of synthetic broad-spectrum antibiotics, widely used for the prevention and the treatment of various diseases in husbandry animals and acquaculture. In the EU legislation the use of quinolones is allowed. Their maximum residue limits (MRL) have been set at different values in various matrices, but no limits have been set for eggs. In recent years several works on LC-FLD and LC-MS/MS analysis of quinolones bave been published. However, in laboratories with high throughput, the availability of simple, quick and sensitive screening tests is necessary. Immunoassay techniques meet these requirements and, at the same time, are cheap. The aim of this work is the development of a simple qualitative screening method for quinolones in various matrices of animal origin (i.e. muscle, milk and egg), using a commercial ELISA test (r-Biopharm), and the evaluation of its analytical performances according to the European Decision 2002/657/EC criteria. The cross-reactivity of all analytes was verified at 25 µg/kg for muscle and egg and at 15 µg/kg for milk samples. Sarafloxacin has then been selected as reference compound for the validation study. The method performances are studied by three laboratories involved in official residues control programs. Difficulties encountered during validation, results and data analysis are discussed. ID nr. 4569 Foni° E, Bublot M, Chiapponi° C, Herin JB, Joisel F, Perreul G, Zanni° I, Vila T Seroprevalence of H1N1, H3N2 and H1N2 influenza virus in 29 pig farms in France in 2009 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 565. - 4 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) First author Foni, Emanuela ID nr. 4571 Brookes S, Núñez A, Choudhury B, Matrosovich M, Essen SC, Clifford D, Slomka MJ, Kuntz-Simon G, Garcon F, Nash B, Hanna A, Heegaard PMH, Quéguiner S, Chiapponi° C, Bublot M, Garcia JM, Gardner R, Foni° E, Loeffen W, Larsen L, Van_Reeth K, Banks J, Irvine RM, Brown IH Replication, pathogenesis and transmission of pandemic (H1N1) 2009 virus in non-immune pigs PLoS One. - Vol. 5 no 2 ( 2010). - p e9068. - 35 bib ref Impact factor: 4,351 Pag. 270 di 300 31/08/2011 The declaration of the human influenza A pandemic (H1N1) 2009 (H1N1/09) raised important questions, including origin and host range [1,2]. Two of the three pandemics in the last century resulted in the spread of virus to pigs (H1N1, 1918; H3N2, 1968) with subsequent independent establishment and evolution within swine worldwide [3]. A key public and veterinary health consideration in the context of the evolving pandemic is whether the H1N1/09 virus could become established in pig populations [4]. We performed an infection and transmission study in pigs with A/California/07/09. In combination, clinical, pathological, modified influenza A matrix gene real time RT-PCR and viral genomic analyses have shown that infection results in the induction of clinical signs, viral pathogenesis restricted to the respiratory tract, infection dynamics consistent with endemic strains of influenza A in pigs, virus transmissibility between pigs and virus-host adaptation events. Our results demonstrate that extant H1N1/09 is fully capable of becoming established in global pig populations. We also show the roles of viral receptor specificity in both transmission and tissue tropism. Remarkably, following direct inoculation of pigs with virus quasispecies differing by amino acid substitutions in the haemagglutinin receptor-binding site, only virus with aspartic acid at position 225 (225D) was detected in nasal secretions of contact infected pigs. In contrast, in lower respiratory tract samples from directly inoculated pigs, with clearly demonstrable pulmonary pathology, there was apparent selection of a virus variant with glycine (225G). These findings provide potential clues to the existence and biological significance of viral receptor-binding variants with 225D and 225G during the 1918 pandemic. ID nr. 4572 Bellini° S, Alborali° L, Zanardi° G, Bonazza° V, Brocchi° E Swine vesicular disease in northern Italy: diffusion through densely populated pig areas Rev Sci Tech OIE. - Vol. 29 no 3 ( 2010). - p 639-648. - 13 bib ref Impact factor: 1,238 First author Bellini, Silvia At the end of 2006, a recrudescence of swine vesicular disease (SVD) was recorded in Italy and the disease spread widely throughout the northern regions. Lombardy, a densely populated pig area, was most affected and the presence of the disease caused heavy economic losses to the entire pig industry. Although SVD is considered only moderately contagious, the epidemic in the north was characterised by a rapid spread of the condition. Numerous difficulties were encountered in eradicating it. Over the past decade, there has been a significant increase in the population of pigs in Lombardy, concentrated mainly in a few areas which were the most severely affected during the 2006 to 2007 SVD epidemic. Increases in both the pig population and animal movements, combined with weak biosecurity measures, increased the spread rate of the disease and hampered eradication activities. ID nr. 4573 Fiocchi A, Gustinelli A, Trentini M, Bassi° S, Gelmini° L, Fioravanti° ML Gastrointestinal helminths in bird of prey from Italy Parassitologia. - Vol. 52 no 1-2 ( 2010). - p 271 Congresso Nazionale della Societa' Italiana di Parassitologia (26. : Perugia : 22-25 giugno 2010) First author Fiocchi, A ID nr. 4574 Carra° E, Pongolini° S, Carpana° E, Paganelli° GL, Rugna° G, Bassi° S Real-time PCR method for the quantification of Paenibacillus larvae spores in debris: comparison to microbiology 4th European Conference of Apidology EurBee : 7-9 September 2010 Metu-Ankara, Turkey : proceedings / [s.l. : s.n., 2010]. - p 118 European Conference of Apidology EurBee (4th : Metu-Ankara, Turkey : 7-9 September 2010) Pag. 271 di 300 31/08/2011 Project APENET - Evaluation of the synergism among diverse factors on bee health - Bortolotti Dr.ssa Laura - UO - ALTRI - 2009 - 478400,00 EUR - 01/12/2009 0.00.00 - 31/03/2011 0.00.00 - 1 N4 - Sezione diagnostica provinciale di Modena - Bassi Dr. Stefano - I First author Carra, Elena American foulbrood is the most diffused and severe bacterial disease of the honeybee brood. It is caused by the spore-forming bacterium Paenibacillus larvae (P. larvae). The control of the disease relies essentially on the identification and elimination of diseased colonies. Disclosure of latent infections in colonies without symptoms, by detection of P. larvae spores, is an important component of American foulbrood prevention. Honey, adult bees and winter debris are the most useful targets to assess the level of contamination of colonies. The aim of our work was the development of a real-time PCR method for the quantitative assessment of the spore content in winter debris and the comparison of this molecular method to the microbiological enumeration. A new TagMan® real-time PCR was designed targeting the 16S-ribosomal RNA gene of P. larvae, taking particular care of reaction specificity. For this purpose both in-silico and in-vitro specificity were tested with respect to several potential bacterial contaminants of the hive, belonging to Paenibacillus, Bacillus and Enterococcus genera. The same real-time PCR was used to screen for positive samples of debris and to quantify the spores in samples resulted positive on screening. Microbiological spore counting was performed by plating onto MYPGP-agar supplemented with nalidixic and pipemidic acid, after distilled-water extraction of samples. Winter debris from approximately 150 colonies belonging to 15 apiaries of three provinces in Northern Italy were analysed. Selected apiaries had shown different disease levels in the year preceding the study. The concordance level of the tested methods is discussed. ID nr. 4575 Dall'Ara A, Golfari G, Massi° P, Poglayen G Manure hygienisation developement and application (MIDA) as biological technology for treatment of laying ben manure International Poultry Scientific Forum : January 25-26 2010 : abstracts / [s.l. : s.n., 2010]. - p 54 International Poultry Scientific Forum : January 25-26 2010) Overall, the goal is to overcome the management of manure as waste and the agricultural lands need for its spreading through the direct production of quality hygienic fertilizer, that improves the soil structure, enhances its fertility and rehabilitates for predesertification. In details, the aim of the project was to verify laying hen manure (LHM) hygienisation by bio-treatment, according to Reg. (CE) 1774/2002 indications. The obtained product, should be transformed not in a waste, but in an hygienic and marketable safe organic fertilizer. LHM dried at three different level of humidity by MDS (Manure Drying System) was treated inside big-bags and pile, by adding PAV (Vegetal Active Principles) a biocatalyst of plant origin, in a poultry farro in Italy. Manure sampling and analysis, taken at days -3 (before MDS), 0, 38, 81, 123, were carried out following Reg. (CE) 1774/2002 and taking irato account also the chemical nutrients considered in D. Lgs. 217/06 Objectives for thermal and chemical process are: - absence of Salmonella spp.in 25 grams; - concentration of Escherichia coli in 1 gram lower than or equal to 1000 u.f.c.; - reduction S log 10 of Enterococcus faecalis in 1 gram; reduction 3 log 10 of Parvovirus. In this early stage, due to the high environmental resistence of dispersal stages of parasites, we have added also the evaluation of PAV's activity on coccidia and ascarid eggs. This justified the sampling at day -3 useful to assess the parasites burden in the fresh LHM. Also pathogen and saprophytic fungi were searched with the same timing. Due to the absence of Parvovirus in poultry, to follow the reg. (CE) 1774/2002 we have developed a "daughter" trial in controlled conditions adding Parvovirus of swine origin to LHM. From a general point of view, the experimental activity of MIDA has shown good results in reducing biologica] parameters after 123 days and appears to be encouraging for the authors to go on, developing the project and searching for financial support. ID nr. 4576 Salogni° C, Cervellione F, Zanoni° M, Giovannini° S, Alborali° GL Yersina ruckeri in siberian sturgeon (Acipenser baeri). Discription of a outbreak of infection in a Pag. 272 di 300 31/08/2011 Northern Italy fish farm XVI Convegno Nazionale Società Italiana di Patologia Ittica (SIPI) : 27-29 Maggio 2010, Orvieto (TR) : atti / [s.l. : s.n., 2010]. - p 30 Convegno Nazionale Società Italiana di Patologia Ittica (SIPI) (16. : Orvieto (TR) : 27-29 Maggio 2010) First author Salogni, Cristian This communication describes an outbreak of infection with Yersinia ruckeri in Siberian sturgeon (Acipenser baeri) occurred in May of 2009,in a fish farm in northern Italy and characterized by a 1-3%, daily mortality which lasted for about a fortnight to reach a cumulative value of 30%. The entire lot of fish (20,000 subjects), the average weight of 40 g, previously had been imported from Eastern Europe. The symptomatology was characterized by apathy, loss of appetite, moderate bilateral popeye, skin darkness, bleeding of the oral cavity at the base of the fins and in the perineal region. The autopsy showed Gill pallor, coelomic serumhemorrhagic exudate, congestion and increase in volume of the spleen, distension of the bladder for storage of gas and catarrhal-haemorrhagic enteritis. The cultural examination, performed on blood agar and TSA, allowed the isolation of pure colonies from all organs in all subjects tested (septicemic form). Identification of the germ isolated as Yersinia ruckeri was performed by biochemical characterization (Macro, miniaturized system API20E), genomics and serological survey. This work represents the first report on the national territory, and one of the few in the world, and infection of the pathogenic role of Yersinia ruckeri in the Siberian sturgeon. ID nr. 4577 Calzolari° M, Bonilauri° P, Albieri A, Bellini R, Carra° E, Defilippo° F, Maioli° G, Tamba° M, Angelini P, Dottori° M Evidence in West Nile virus and Usutu virus circulation in mosquitoes sampled in Emilia-Romagna Region in 2009 4th annual meeting Epizone : "Bridges to the future" : 7-10 June, 2010 Saint-Malo, France : abstracts oral and poster presentations / [s.l. : s. n., c2010]. - p 204. - 7 bib ref Annual meeting Epizone (4th : Saint-Malo, France : 7-10 June, 2010) Project PRC2008005 - Mapping Arthropod Vectors: on field evaluation of different monitoring methods Tamba Dr. Marco - Capofila - MINSAN - 2008 - 187000,00 EUR - 01/10/2009 0.00.00 30/09/2012 0.00.00 - 1 - N0 - CEREV - Tamba Dr. Marco - I 2 - N8 - Sezione diagnostica provinciale di Reggio Emilia - Luppi dr. Andrea - I 3 - M8 - Sezione diagnostica provinciale di Pavia - Fabbi Dr. Massimo - I 4 - G1 - Reparto di Virologia e Sierologia Specializzata - Lelli dr. Davide - I 5 - Centro Agricoltura Ambiente "G. NIcoli" - Bellini dr. Romeo - E 6 - Istituto Zoop. della Sicilia - Torina dr.ssa Alessandra - E EPIZONE - "Network of excellence for epizootic disease diagnosis and control - "EPIZONE". - Van Rijn dr. Piet - UO - CE - 2005 - 01/06/2006 0.00.00 - 31/05/2011 0.00.00 - 14000000,00 EUR 17 - U3 - REPARTO AGENTI AD ALTA DIFFUSIONE E BIOTECNOLOGIE - Bellini Dr.ssa Silvia - I First author Calzolari, Mattia ID nr. 4578 Gale P, Stephenson B, Younas A, Ulrich RG, Lindstrom A, Wahistrom H, Scremin M, Martinez M, De_La_Torre A, Munoz MJ, Bosch J, Capelli G, Phipps P, Dottori° M, Bonilauri° P, Wilson A, Yin H Towards a qualitative spatial model for risk of incursion of Crimean-Congo haemmorrhagic fever in livestok in Europe 4th annual meeting Epizone : "Bridges to the future" : 7-10 June, 2010 Saint-Malo, France : abstracts oral and poster presentations / [s.l. : s. n., c2010]. - p Annual meeting Epizone (4th : Saint-Malo, France : 7-10 June, 2010) Pag. 273 di 300 31/08/2011 ID nr. 4579 Gale P, Stephenson B, Younas A, Ulrich RG, Martinez M, Munoz MJ, De_La_Torre A, Bosch J, Wahjstrom H, Lindstrom A, Capelli G, Scremin M, Bonilauri° P, Dottori° M, Phipps P, Yin H, De_Koeijer, De_Vos C, Younas A, Stephenson B Towards a qualitative spatial model for risk of incursion of Crimean-Congo haemmorrhagic fever in livestok in Europe 4th annual meeting Epizone : "Bridges to the future" : 7-10 June, 2010 Saint-Malo, France : abstracts oral and poster presentations / [s.l. : s. n., c2010]. - p Annual meeting Epizone (4th : Saint-Malo, France : 7-10 June, 2010) Project EPIZONE - "Network of excellence for epizootic disease diagnosis and control - "EPIZONE". - Van Rijn dr. Piet - UO - CE - 2005 - 14000000,00 EUR - 01/06/2006 0.00.00 - 31/05/2011 0.00.00 17 - U3 - REPARTO AGENTI AD ALTA DIFFUSIONE E BIOTECNOLOGIE - Bellini Dr.ssa Silvia I ID nr. 4580 Bellini R, Bonilauri° P, Angelini P, Albieri A, Veronesi R, Calzolari° M, Dottori° M, Tamba° M, Venturi L, Borrini B, Martini E West Nile virus activity in the Emilia-Romagna Region (Italy, 2008-2009) European Mosquito Control Association Annual Meeting 2010 : March 28 - April 1 Friday 2010 Lexingtone, KY / [s.l. : s. n., 2010]. European Mosquito Control Association Annual Meeting : Lexingtone, KY : March 28 - April 1 Friday 2010) Project PRC2008005 - Mapping Arthropod Vectors: on field evaluation of different monitoring methods Tamba Dr. Marco - Capofila - MINSAN - 2008 - 187000,00 EUR - 01/10/2009 0.00.00 30/09/2012 0.00.00 - 1 - N0 - CEREV - Tamba Dr. Marco - I 2 - N8 - Sezione diagnostica provinciale di Reggio Emilia - Luppi dr. Andrea - I 3 - M8 - Sezione diagnostica provinciale di Pavia - Fabbi Dr. Massimo - I 4 - G1 - Reparto di Virologia e Sierologia Specializzata - Lelli dr. Davide - I 5 - Centro Agricoltura Ambiente "G. NIcoli" - Bellini dr. Romeo - E 6 - Istituto Zoop. della Sicilia - Torina dr.ssa Alessandra - E During the late summer 2008 a-large epidemic of West Nile virus occurred in North-Fast Italy involving an area of more than 7,000 Kmsq in 3 Regions (Lombardia, Veneto, Emilia-Romagna). This was the largest epidemic ever recorded in the country. Following the first evidence in equine and birds an active entomologicall surveillance plan was started byte Emilia-Romagna Surveillance Group on Vectorial Disease. Mosquito collection was conducted by CO2 baited traps specifically positioned in 78 sites. Totally in the period September 3 - October 23, more than 20,000 mosquitoes were analysed by RT-PCR. Two pools of Cx. pipiens collected at the end of September in different localities tested positive for WN virus. In the 2009 summer the surveillance was activated focusing on sentinel equine, residential birds and mosquitoes. Mosquito collection was conducted in the period week 25-42 by CO2 traps in 92 fixed stations with weekly to monthly periodicity.Totally more than 178,000 mosquitoes were collected, pooled and analyzed (1,612 pools of < 200 individuals/pool}. Cx. pipiens resulted the most abundant species (84.02%} followed by Ae. caspíus (13.05%), Ae. vexans (2.00%), Ae. a/bopictus (0.55%}, Cx. modestus (0.14%), An, maculipennis s.l. (0.03%), Ae. dorsal~s (0.007%), Ae. detritus (0.003%}.. Twenty-seven pools, all consisted of Cx, pipiens, resulted positive. Early positive pools were collected in the Province of Reggio Emilia at the end of ]uly. The highest MIR values (1.02-1.59} were recorded in August in the Provinces of Reggio Emilia and Modena. Of 1,091 wild birds tested 42 (3.8%) resulted positive to WNV. Except for a magpie caught in May, positive wild birds were detected starting from the end of )uly. Most of infected wild birds were corvids (magpies, carrion crows and jays). The 2009 overall incidence in horses was estimated between 10%and 16%, with 23 neurological WND equine confirmed cases starting in the second half of ]uly and picking between Mid-August and MidSeptember. At the end of the season 9 human cases have been confirmed in the Region. The persistence of WN activity in the Po plain for two consecutive years indicates that the area is becoming suitable for WN establishment and possible endemicity, stressing the need to organize standard surveillance measures aimed to the early detection of WN activity and risk evaluation in public health. Pag. 274 di 300 31/08/2011 ID nr. 4581 Bellini R, Bonilauri° P, Angelini P, Natalini S, Albieri A, Veronesi R, Calzolari° M, Dottori° M, Tamba° M West Nile virus surveillance in the Emilia-Romagna Region (Italy), 2008-2009-2010 17th European Society for Vector Ecology Conference (ESOVE) : Monday 13th September - Friday 17th September 2010 : Wroclaw, Poland : preliminary programme / [s.l : s.n., 2010]. European Society for Vector Ecology Conference (ESOVE) (17th : Wroclaw, Poland : Monday 13th September - Friday 17th September 2010) Project PRC2008005 - Mapping Arthropod Vectors: on field evaluation of different monitoring methods Tamba Dr. Marco - Capofila - MINSAN - 2008 - 187000,00 EUR - 01/10/2009 0.00.00 30/09/2012 0.00.00 - 1 - N0 - CEREV - Tamba Dr. Marco - I 2 - N8 - Sezione diagnostica provinciale di Reggio Emilia - Luppi dr. Andrea - I 3 - M8 - Sezione diagnostica provinciale di Pavia - Fabbi Dr. Massimo - I 4 - G1 - Reparto di Virologia e Sierologia Specializzata - Lelli dr. Davide - I 5 - Centro Agricoltura Ambiente "G. NIcoli" - Bellini dr. Romeo - E 6 - Istituto Zoop. della Sicilia - Torina dr.ssa Alessandra - E ID nr. 4582 Morandi F, Bacci B, Panaresa D, Ferrara D, Fusaro L, Bacci ML, Dottori° M, Bonilauri° P, Leotti G, Vila T, Josef F, Ostanello F, Sarli G Conventional, sows inseminated with artificially PCV2-infected semen : il post mortem results 2nd European Symposium on Porcine Health Managements (ESPHM) "Pig heath, performance and welfare" : 26th-28th May 2010, Hannover, Germany : proceedings / [s.l. : s.n, 2010]. - p 78. - 8 bib ref European Symposium on Porcine Health Managements (ESPHM) (2nd : Hannover, Germany : 26th-28th May 2010) ID nr. 4583 Sarli G, Morandi F, Panaresa D, Bacci B, Ferrara D, Fusaro L, Bacci ML, Galeati G, Dottori° M, Bonilauri° P, Lelli° D, Leotti G, Vila T, Josef F, Ostanello F Conventional, sows inseminated with artificially PCV2-infected semen : in vitro results 2nd European Symposium on Porcine Health Managements (ESPHM) "Pig heath, performance and welfare" : 26th-28th May 2010, Hannover, Germany : proceedings / [s.l. : s.n, 2010]. - p 77. - 10 bib ref European Symposium on Porcine Health Managements (ESPHM) (2nd : Hannover, Germany : 26th-28th May 2010) ID nr. 4584 Maioli° G, Fontana° MC, Zanin D, Rugna° G, Renzi° M, Merialdi° G Cluster of cysticercosis (Taenia pisiformis) in European brown hares in Bologna Province Parassitologia. - Vol. 52 no 1-2 ( 2010). - p 279 Congresso Nazionale della Societa' Italiana di Parassitologia (26. : Perugia : 22-25 Giugno 2010) First author Maioli, Giulia ID nr. 4585 Maioli° G, Bonilauri° P, Merialdi° G, Luppi° A, Dottori° M Surveillance on TBEV and CCHFV in ticks collected on hunted wild animal in the Emila Romagna Region (Italy), preliminay results Parassitologia. - Vol. 52 no 1-2 ( 2010). - p 277 Congresso Nazionale della Societa' Italiana di Parassitologia (26. : Perugia : 22-25 Giugno 2010) Pag. 275 di 300 31/08/2011 Project PRC2008005 - Mapping Arthropod Vectors: on field evaluation of different monitoring methods Tamba Dr. Marco - Capofila - MINSAN - 2008 - 187000,00 EUR - 01/10/2009 0.00.00 30/09/2012 0.00.00 - 1 - N0 - CEREV - Tamba Dr. Marco - I 2 - N8 - Sezione diagnostica provinciale di Reggio Emilia - Luppi dr. Andrea - I 3 - M8 - Sezione diagnostica provinciale di Pavia - Fabbi Dr. Massimo - I 4 - G1 - Reparto di Virologia e Sierologia Specializzata - Lelli dr. Davide - I 5 - Centro Agricoltura Ambiente "G. NIcoli" - Bellini dr. Romeo - E 6 - Istituto Zoop. della Sicilia - Torina dr.ssa Alessandra - E First author Maioli, Giulia ID nr. 4586 Defilippo° F, Bonilauri° P, Massirio I, Dottori° M Development of the pupal stages of the blowfly, Calliphora vicina (Robineau-desvoydi) (Diptera: calliphoridae)c 8th Meeting of the European Symposium for Forensic Entomology (EAFE) : 8-11 Septiembre 2010, Universidad de Murcia / [s.l. : s.n, 2010]. - p 46 European Symposium for Forensic Entomology (EAFE) (8th : Universidad de Murcia : 8-11 Septiembre 2010) ID nr. 4587 Maioli° G, Bonilauri° P, Spaggiari B, Defilippo° F, Luppi° A, Calzolari° M, Dottori° M Ticks infesting wild animals in Lombardia and Emilia-Romagna regions Parassitologia. - Vol. 52 no 1-2 ( 2010). - p 278 Congresso Nazionale della Societa' Italiana di Parassitologia (26. : Perugia : 22-25 Giugno 2010) First author Maioli, Giulia ID nr. 4588 Maioli° G, Martini M, Artoni A, Gelmetti° D, Luppi° A Fatal verminous pneumonia due to Filaroides hirthi in a Chihuahua Parassitologia. - Vol. 52 no 1-2 ( 2010). - p 245 Congresso Nazionale della Societa' Italiana di Parassitologia (26. : Perugia : 22-25 Giugno 2010) First author Maioli, Giulia ID nr. 4589 Luppi° A, Arioli E, Caleffi A, Bonilauri° P, Dottori° M, Maioli° G, Marco E, Martelli P Spes grid and Actinobacillus pleuropneumoniae eradication in a pig herd 2nd European Symposium on Porcine Health Managements (ESPHM) "Pig heath, performance and welfare" : 26th-28th May 2010, Hannover, Germany : proceedings / [s.l. : s.n, 2010]. - p 114. - 2 bib ref European Symposium on Porcine Health Managements (ESPHM) (2nd : Hannover, Germany : 26th-28th May 2010) First author Luppi, Andrea ID nr. 4590 Luppi° A, Bonilauri° P, Ferrari E, Gherpelli° Y, Merialdi° G, Dottori° M, Martelli P Serological characterization of haemophilus parasuis strains in Italy 2nd European Symposium on Porcine Health Managements (ESPHM) "Pig heath, performance and welfare" : 26th-28th May 2010, Hannover, Germany : proceedings / [s.l. : s.n, 2010]. - p 116. - 2 bib ref European Symposium on Porcine Health Managements (ESPHM) (2nd : Hannover, Germany : 26th-28th May 2010) Pag. 276 di 300 31/08/2011 First author Luppi, Andrea ID nr. 4591 Bonilauri° P, Calzolari° M, Bellini R, Carra° E, Defilippo° F, Maioli° G, Tamba° M, Angelini P, Cordioli° P, Dottori° M West Nile virus and usutu virus activity in field collected mosquitoes in Emila-Romagna Region (IT), in 2009 International Workshop Zoonotic and Vector-Borne CNS infections : 22-23 April 2010, Braunschweig, Germany / [s.l. : s.n., 2010]. - 1 p. - 7 bib ref International Workshop Zoonotic and Vector-Borne CNS infections : Braunschweig, Germany : 22-23 April 2010) Project PRC2008005 - Mapping Arthropod Vectors: on field evaluation of different monitoring methods Tamba Dr. Marco - Capofila - MINSAN - 2008 - 187000,00 EUR - 01/10/2009 0.00.00 30/09/2012 0.00.00 - 1 - N0 - CEREV - Tamba Dr. Marco - I 2 - N8 - Sezione diagnostica provinciale di Reggio Emilia - Luppi dr. Andrea - I 3 - M8 - Sezione diagnostica provinciale di Pavia - Fabbi Dr. Massimo - I 4 - G1 - Reparto di Virologia e Sierologia Specializzata - Lelli dr. Davide - I 5 - Centro Agricoltura Ambiente "G. NIcoli" - Bellini dr. Romeo - E 6 - Istituto Zoop. della Sicilia - Torina dr.ssa Alessandra - E First author Bonilauri, Paolo ID nr. 4595 Battisti A, Franco A, Hasman H, Iurescia M, Lorenzetti D, Feltrin F, Zini M, Aarestrup FM, Merialdi° G Survey of methicillin-resistant Staphylococcus aureus (MRSA) from Italian pig finishing holdings 21st International Pig Veterinary Society Congress (IPVS) : July 18 – 21, 2010 Vancouver, Canada : proceedings / [s.l : s.n, c2010]. - cdrom p 954. - 2 bib ref International Pig Veterinary Society Congress (IPVS) (21st : Vancouver, Canada : July 18 – 21, 2010) ID nr. 4596 Moreno° A, Piccirillo A, Mondin A, Morandini E, Gavazzi L, Cordioli° P Epidemic of infectious laryngotracheitis in Italy: characterization of virus isolates by PCR–restriction fragment length polymorphism and sequence analysis Avian Dis. - Vol. 54 n 4 ( 2010). - p 1172-1177. - 27 bib ref Impact factor: 2,003 First author Moreno_Martin, Ana Between May 2007 and October 2008, 34 outbreaks of mild to moderate forms of infectious laryngotracheitis (ILT) occurred in commercial broiler flocks in Italy. Affected birds showed watery eyes, conjunctivitis, nasal discharge, reduction of feed and water consumption, and gasping with expectoration of blood-stained mucus. The mortality rate was <10%. Gross lesions consisted of conjunctivitis, excess of mucus, blood, or presence of diphtheritic membranes in trachea. A real-time PCR assay was performed to confirm the presence of ILT virus (ILTV) DNA in tracheal tissue homogenates. Twenty-three ILTV isolates were propagated on the chorion-allantoic membrane of embryonated chicken eggs showing typical plaques. PCR combined with restriction fragment length polymorphism and gene sequencing of isolates showed a high genetic correlation between field strains and chicken embryo origin vaccines. . ID nr. 4597 Merialdi° G, Spaggiari° B, Santachiara F, Bardasi° L, Fontana° MC, Licata E, Barbani R, Pag. 277 di 300 31/08/2011 Pozio E First record of Trichinella pseudospiralis in a wild boar (Sus scrofa) of Italy Parassitologia. - Vol. 52 no 1-2 ( 2010). - p 282 Congresso Nazionale della Societa' Italiana di Parassitologia (26. : Perugia : 22-25 giugno 2010) First author Merialdi, Giuseppe ID nr. 4605 Stacchiotti A, Foglio E, Lavazza° A, Rodella LF, Rezzani R Analysis of the beneficial effects of taurine against puromycin-induced nephrosis in rats Revealing the nanoworld in life and materials sciences : 17th IFSM International Microscopy Congress : September 19-24 2010 Rio de Janeiro (Brazil) / [Rio de Janeiro : s.n, 2010]. - 1 p . - 6 bib ref International Microscopy Congress (17th : Rio de Janeiro (Brazil) : September 19-24, 2010) Glomerular disease induced by puromycin aminonucleoside (PAN) is a well-known animal model of human minimal change nephropathy, associated to proteinuria [1]. Radical oxygen species (ROS) play an important role in the pathogenesis of PAN nephrosis, where they activate interstitial tubular fibrosis, cytoskeleton alterations, endoplasmic reticulum stress and cell death [2]. Dietary supplementation of antioxidants has been reported to be useful to alleviate these adverse effects [3], so the present microscopic study was aimed to assess the beneficial role of taurine (TAU), an anti-inflammatory and anti-oxidant amino acid in PANnephrosis [4]. Adult Sprague-Dawley rats (250g body weight, n=16) were divided into four groups receiving: TAU (1.5% in drinking water) from day 0 to 14; PAN (15 mg/hg) by a single i.p. injection at day 7; TAU + PAN as above; control group that was given 2ml i.p. saline injection and drank tap water. All rats were sacrificed at day 8 after PAN treatment and kidneys harvested for morphological analysis. Proteinuria was measured in urine collected 24h before sacrifice by a Multistix 10SG kit (Bayer). Glomerular podocytes damage was detected by CHOP (C/EBP homologue protein) immunostaining, a marker differentially induced by ROS [5] and by TEM microscopy. Interstitial fibrosis was assessed by Sirius red staining at light microscopy with a polarised filter, the presence of inflammatory cells by EDI/CD68 immunostaining and oxidative damage by induction of metallothioneins (MTs). Both TAU and control groups were devoid of renal damage and proteinuria, while in contrast, PAN induced proteinuria associated to interstitial fibrosis (Figure 1), glomerular CHOP (Figure 2) and podocytes pedicels fusion (Figure 3). Remarkably, all these adverse signs were significantly attenuated by TAU supplementation, even if MTs persisted in medullar tubules as further antioxidant local defence. In conclusion, dietary TAU ameliorates podocytes adhesion to glomerular membrane, so reducing proteinuria at 1 week after PAN injection, when the filtration barrier damage is maximum. Correlative light and transmission electron microscopy still represent a crucial approach to clearly detect the extent of protection afforded by TAU in this experimental proteinuric model. ID nr. 4606 Gosney FL, McAuliffe L, Barden G, Nicholas RAJ, Aylingl RD, Garbarino° C, Merenda° M, Luini° M Analysis of mycoplasma bovis isolates from bovine milk in Northern Italy 18th International Congress of the IOM : July 11-16th, 2010 Chianciano Terme, Siena, Italy : program and abstracts / [s.l. : s.n, 2010]. - p 190-191 International Congress of the IOM (18th : Chianciano Terme, Siena, Italy : July 11-16th, 2010) Mycoplasma bovis, the agent responsible for bovine mastitis, arthritis and pneumonia has been reported to be causing clinica] disease in dairy herds in the regions Lombardia and Emilia Romagna in Italy with an increase seen in outbreaks of mastitis from 5 in 2007 to 38 in 2009. Surveillance for M. bovís has increased in these regions and studies have been undertaken to investigate the molecular epidemiology, mechanisms of virulence and antimicrobial sensitivity of these isolates. Pulsed Field Gel Electrophoresis (PFGE) was applied to 28 M. bovis isolates using the restriction enzyme Smal. The PFGE results enabled the grouping of isolates based on their genetic profiles, showing the clustering of farms within close proximity of each other indicating that the same strain type is most likely circulating on these farms. Conversely, a high level of diversity was Pag. 278 di 300 31/08/2011 observed on one farm (farm A) where only 50% similarity was displayed between isolates. The antimicrobial minimum inhibitory concentration (MIC) was determined against 14 antimicrobials. The MIC values demonstrated the ineffectiveness of many antimicrobials in vitro with values of more than >32 µg/ml; The MIC values obtained linked to the source farm. Isolates from farm A ali had high MIC values against the lincosamides, whereas farms C, D and H which were neighbouring farms were consistently high against spectinomycin, while farm G had high MIC values against the fluoroquinolones. However the MIC profiles did not correlate with the PFGE profiles. Biofilm studies were also undertaken using a giass coverslip modei in Eaton's medium to provide an air/liquid interface. Celis were incubated for 2 weeks at 37°C allowing the formation of a biofilm. The M. bovis isolates exhibited a wide range