Serological evidence and risk factors associated with Caprine herpesvirus 1 in dairy goat flocks in a semiarid region of northeastern Brazil
| Autor: | Michele S. Lima, Edviges Maristela Pituco, Maria Luana Cristiny Rodrigues Silva, Maira S. N. Martins, Sérgio Santos de Azevedo, Adriana H. C. Nogueira |
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| Rok vydání: | 2012 |
| Předmět: |
Veterinary medicine
Cross-sectional study Serological evidence Caprine herpesvirus Antibodies Viral Animal science Neutralization Tests Risk Factors Seroepidemiologic Studies Surveys and Questionnaires Animals Seroprevalence Varicellovirus Risk factor Herpesvirus 1 Bovine Goat Diseases General Veterinary biology Goats Herpesviridae Infections biology.organism_classification Confidence interval Bovine herpesvirus 1 Cross-Sectional Studies Logistic Models Multivariate Analysis Female Flock Brazil |
| Zdroj: | Journal of Veterinary Diagnostic Investigation. 25:125-128 |
| ISSN: | 1943-4936 1040-6387 |
| DOI: | 10.1177/1040638712470946 |
| Popis: | A cross-sectional study was carried out to determine the flock-level seroprevalence of Caprine herpesvirus 1 (CpHV-1) and Bovine herpesvirus 1 (BoHV-1) and 2 (BoHV-2) and risk factors associated with CpHV-1 in dairy goat flocks from a semiarid region of northeastern Brazil. A total of 1,034 serum samples from 110 flocks were collected from March 2009 through March 2010. A structured questionnaire focusing on variables related to risk factors for CpHV-1 infection was given to each farmer at the time of blood collection. Antibodies against CpHV-1, BoHV-1, and BoHV-2 were detected by neutralization tests. The flock-level prevalences of CpHV-1, BoHV-1, and BoHV-2 were 89.1% (98/110; 95% confidence interval [CI]: 81.7–94.2), 80% (88/110; 95% CI: 71.3–87), and 4.5% (5/110; 95% CI: 1.5–10.3), respectively. Frequencies of seropositive animals were 36.6% (379/1,034), 25.8% (267/1,034), and 0.6% (6/1,034) for CpHV-1, BoHV-1, and BoHV-2, respectively. The use of natural mating was identified as a risk factor associated with CpHV-1 flock-level prevalence ( P = 0.001). It is suggested that adoption of veterinary services and active surveillance of the at-risk flocks in the study region should be initiated to reduce the prevalence of herpesvirus infections. |
| Databáze: | OpenAIRE |
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