title: Viral antibodies in bovine fetuses in Argentina.
abstract: In order to establish the prevalence of viral infections of the bovine fetus in Argentina, a serological survey for antibodies against viral agents currently affecting cattle in this country was conducted. Antibodies against foot-and-mouth disease virus (FMDV), bovine herpesvirus-1 (BHV-1), bovine leukaemia virus (BLV), bovine rotavirus (BRV), bovine coronavirus (BCV), bovine viral diarrhoea virus (BVDV) and parainfluenza-3 (PI-3) were investigated in a total of 315 fetal serum samples. Conventional techniques were used: indirect immunofluorescence (FMDV, BHV-1, BVDV and BCV), radial immunodiffusion (BLV), ELISA (BRV) and haemagglutination inhibition (PI-3). Antibodies against BHV-1, BVDV and PI-3 were detected in samples from fetuses in the second and third trimester of gestation, with a prevalence of 1.21 per cent (two of 165), 2.03 per cent (four of 197) and 5.08 per cent (nine of 177), respectively. Either antibodies or non-antibody factors able to bind to BRV and BCV antigens were detected with a prevalence of 2.44 per cent (five of 205) and 4.54 per cent (five of 110), respectively. In addition, 14.68 per cent of non-specific inhibitors of PI-3 mediated haemagglutination were found. No seropositives against FMDV and BLV were detected.
authors.affiliation: Instituto de Virologia, Centro de Investigaciones en Cienciãs Veterinarias, INTA-Castelar, Morón, Buenos Aires, Argentina.
authors.forename: G B
authors.initials: GB
authors.lastname: Pinto
authors.forename: P
authors.initials: P
authors.lastname: Hawkes
authors.forename: O
authors.initials: O
authors.lastname: Zábal
authors.forename: E
authors.initials: E
authors.lastname: Ulloa
authors.forename: I A
authors.initials: IA
authors.lastname: Lager
authors.forename: E L
authors.initials: EL
authors.lastname: Weber
authors.forename: A A
authors.initials: AA
authors.lastname: Schudel
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000302:isolation & purification*; D000956:Antigens, Viral / Q000276:immunology; D005537:Aphthovirus / Q000276:immunology; D001118:Argentina / Q000453:epidemiology; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D017938:Coronavirus, Bovine / Q000276:immunology; D005260:Female; D005315:Fetal Diseases / Q000453:epidemiology / Q000662:veterinary*; D005333:Fetus / Q000276:immunology*; D007242:Herpesvirus 1, Bovine / Q000276:immunology; D001909:Leukemia Virus, Bovine / Q000276:immunology; D008297:Male; D015995:Prevalence; D012401:Rotavirus / Q000276:immunology; D014777:Virus Diseases / Q000453:epidemiology / Q000662:veterinary*
chemical_list: D000914:Antibodies, Viral; D000956:Antigens, Viral