Seroprevalence and risk factors associated to Bovine Herpesvirus 1 (BHV-1) infection in non-vaccinated dairy and dual purpose cattle herds in Ecuador

Seroprevalence and risk factors associated to Bovine Herpesvirus 1 (BHV-1) infection in non-vaccinated dairy and dual purpose cattle herds in Ecuador

A cross-sectional study was carried out to determine the seroprevalence and risk factors associated to Bovine Herpesvirus 1 (BHV-1) infection in non-vaccinated dairy and dual purpose cattle herds from Ecuador. A total of 2367 serum samples from 346 herds were collected from June 2008 through Februar...

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Bibliographic Details
Published in:Preventive veterinary medicine Vol. 100; no. 1; pp. 84 - 88
Main Authors: Carbonero, A., Saa, L.R., Jara, D.V., García-Bocanegra, I., Arenas, A., Borge, C., Perea, A.
Format: Journal Article
Language:English
Published: Netherlands Elsevier B.V 01-06-2011
Subjects:
Animal Husbandry - methods
Animals
Antibodies, Viral - blood
Bovine Herpesvirus 1 (BHV-1)
Cattle
Cattle Diseases - epidemiology
Cattle Diseases - virology
Cross-Sectional Studies
Dairy
Dual purpose
Ecuador
Ecuador - epidemiology
Female
Generalized Estimating Equations
Herpesviridae Infections - epidemiology
Herpesviridae Infections - veterinary
Herpesviridae Infections - virology
Herpesvirus 1, Bovine - isolation & purification
Linear Models
Male
Multivariate Analysis
Risk Factors
Seroepidemiologic Studies
Seroprevalence
Surveys and Questionnaires
Ecuador
Ecuador
Bovine Herpesvirus 1 (BHV-1)
Dual purpose
Generalized Estimating Equations
Dairy
Risk factors
Seroprevalence
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Summary:A cross-sectional study was carried out to determine the seroprevalence and risk factors associated to Bovine Herpesvirus 1 (BHV-1) infection in non-vaccinated dairy and dual purpose cattle herds from Ecuador. A total of 2367 serum samples from 346 herds were collected from June 2008 through February 2009. A questionnaire, which included variables related to cattle, health, management measures and environment was filled out in each herd. A commercial indirect ELISA test was used to determine the seropositivity against BHV-1. Generalized Estimating Equations (GEE) model was used to determine risk factors at individual level, including herd as random effect. The individual seroprevalence to BHV-1 in Ecuador was 43.2% (1023/2367; CI 95%: 41.2–45.2%). The herd prevalence was 82.1%; (284/346; CI 95%: 78.1–86.1%) and the intra-herd prevalence ranged from 12.5 to 100% (mean = 64.1%). The GEE model showed that animal age (>4 years) (OR: 1.44; CI 95%: 1.18–1.75), BRSV infection (OR: 1.45; CI 95%: 1.09–1.92), altitude over the sea level (≤1800 m) (OR: 2.97; CI 95%: 2.1–4.22) and average slope (>11%) (OR: 1.45; CI 95%: 1.07–1.95) are risk factors associated with BHV-1 infection, while a good cleaning of the facilities (OR: 0.66; CI 95%: 0.44–0.99) was shown to be a protective factor.
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ISSN:0167-5877
1873-1716
DOI:10.1016/j.prevetmed.2011.03.006