Description of risk factors associated with the detection of BVDV antibodies in Brazilian pig herds.
Trop Anim Health Prod
; 50(4): 773-778, 2018 Apr.
Article
em En
| MEDLINE
| ID: mdl-29264821
ABSTRACT
Bovine viral diarrhea virus (BVDV) infects ruminants as primary hosts. However, other animals like pigs are susceptible. This study was conducted to investigate seroprevalence and risk factors associated with the detection of BVDV antibodies in pig herds. A total of 1.705 serum samples of 33 finisher herds, from seven Brazilian states, were collected in slaughterhouses. The samples were tested by virus neutralization (VN) test. In total, 5.35% (91/1.705) were positive and 64% (21/33) of the herds had positive animals. A significant association with "trucks are not cleaned and disinfected" and "visitors do not respect 72-h interval between visits to farms" (P < 0.05) was found in association with detection of BVDV-2 antibodies. This study suggests that important biosecurity gaps are present in Brazilian pig farms, as the presence of BVDV antibodies in pigs suggests (direct or indirect) contact with population(s) of ruminant species. Closing biosecurity gaps prevents spread of BVDV and other pathogens such as foot-and-mouth disease virus (FMDV) between pig and ruminant farms. This data should be taken in account by CSF surveillance programs, once cross-reaction in serologic tests between classical swine fever virus (CSFV) and BVDV antibodies has been shown to occur.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Suínos
/
Doenças dos Suínos
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Vírus da Diarreia Viral Bovina Tipo 1
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Vírus da Diarreia Viral Bovina Tipo 2
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Anticorpos Antivirais
Tipo de estudo:
Diagnostic_studies
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Etiology_studies
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Observational_studies
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Prevalence_studies
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Risk_factors_studies
Limite:
Animals
País como assunto:
America do sul
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Brasil
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article