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Tropical Animal Health and Production

, Volume 50, Issue 4, pp 773–778 | Cite as

Description of risk factors associated with the detection of BVDV antibodies in Brazilian pig herds

  • Igor Renan Honorato Gatto
  • Daniel Correia Lima Linhares
  • Henrique Meiroz de Souza Almeida
  • Luis Antônio Mathias
  • Andrea Souza Ramos de Medeiros
  • Zvonimir Poljak
  • Samir Issa Samara
  • Luis Guilherme de Oliveira
Regular Articles

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.

Keywords

Interspecies infection Pestivirus infection Risk factors Swine 

Notes

Acknowledgements

The authors would like to acknowledge the farm owners, the participating slaughterhouse, and the laboratory staff of Preventive Veterinary Medicine’s Department of São Paulo State University (UNESP). We would like to thank student Marina L. Mechler for helping during article writing.

Funding information

Financial support was provided by grant 2014/13590-3, São Paulo Research Foundation (FAPESP) and for the scholarship by the grant 132665/2014-0, National Council for Scientific and Technological Development (CNPq).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethics committee approval

The institution’s ethics committee approved this study, and the certificate registered under the protocol no. 07998/14 on 8 May 2014.

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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2017

Authors and Affiliations

  • Igor Renan Honorato Gatto
    • 1
  • Daniel Correia Lima Linhares
    • 2
  • Henrique Meiroz de Souza Almeida
    • 1
  • Luis Antônio Mathias
    • 1
  • Andrea Souza Ramos de Medeiros
    • 1
  • Zvonimir Poljak
    • 3
  • Samir Issa Samara
    • 1
  • Luis Guilherme de Oliveira
    • 1
  1. 1.São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, JaboticabalJaboticabalBrazil
  2. 2.Iowa State University College of Veterinary Medicine, Veterinary Diagnostic and Production Animal Medicine DepartmentAmesUSA
  3. 3.University of GuelphGuelphCanada

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