Detection of antibodies against bovine respiratory syncytial virus (BRSV) in dairy cattle with different prevalences of bovine herpesvirus type 1 (BoHV-1) in São Paulo State, Brazil/ Detecção de anticorpos contra o vírus respiratório sincicial bovino (BRSV) em rebanhos leiteiros com diferentes prevalências de herpesvirus bovino tipo 1 (BoHV-1) no Estado de São Paulo, Brasil
| Autor: | Maria da Glória Buzinaro, Andréa Souza Ramos de Medeiros, Mônica Costa Oliveira, Bruna Alexandrino, Sandra Possebon Gatti, Ingrid Bortolin Affonso, Samir Issa Samara |
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| Jazyk: | English<br />Portuguese |
| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | Semina: Ciências Agrárias, Vol 32, Iss 1, Pp 295-300 (2011) |
| Druh dokumentu: | article |
| ISSN: | 1679-0359 1676-546X 62146203 |
| DOI: | 10.5433/1679-0359.2011v32n1p295 |
| Popis: | Serum samples from three dairy farms classified as high (1, 78.6%), medium (2, 40.0%) and low (3, 1.6%) prevalence for bovine herpesvirus type 1 (BoHV-1) from São Paulo State, were collected to analyze the prevalence to the bovine respiratory syncytial virus (BRSV) by virus neutralization test. The BRSV observed prevalences for farms 1, 2, and 3 were 45.61%, 84.42%, and 54.09%, respectively. Farm 2 showed higher prevalence to BRSV (P < 0.0001) than farms 1 and 3, which were equivalent (P = 0.2291). Two risk factors, herd size and milder climate conditions, were associated to BRSV. The prevalence of BRSV in farm 1 was statistically lower than BoHV-1 prevalence (P < 0.0001). On the other side, farms 2 and 3 have prevalences of BRSV higher than of BoHV-1 (P < 0.0001 in both comparisons). We may conclude, at least for the studied farms, that BRSV and BoHV-1 did not interact and the differences observed between BRSV and BoHV-1 prevalences into each herd did not have epidemiological importance. |
| Databáze: | Directory of Open Access Journals |
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