Bovine viral diarrhea virus (BVDV) infection in Goiás, Brazil.

Authors

  • Wilia Marta Elsner Diederichsen de Brito
  • Bernardete Tavares Alfaia
  • Suzana Pereira de Melo Borges Caixeta
  • Ana Carolina Cunha Ribeiro
  • Talissa de Moraes Tavares Miranda
  • Alessandra Cartafina Vaz Costa Barbosa
  • Denise Leão Barthasson
  • Daniel Correa Linhares
  • Bruno Oliveira Faria

DOI:

https://doi.org/10.5216/rpt.v39i1.9494

Keywords:

Bovine viral diarrhea virus, Goiás, Epidemiology, Prevalence, Risk factors.

Abstract

This study was performed to estimate the seroprevalence of bovine viral diarrhea
virus (BVDV) in a population of non-vaccinated cattle in Goiás State, Brazil, and
to determine the potential risk factors related to the seropositivity. Serum samples
were collected from 3,533 animals of 888 herds from 232 municipalities in Goiás
between March and September, 2002. These samples were submitted to the serum
neutralization test and an epidemiological questionnaire was filled out for each
herd to investigate variables that could be associated with this infection. The data
were analyzed using Epi Info 6.04. In addition, 960 BVDV antibody-negative
sera were further tested by antigen-ELISA in order to identify persistently infected
animals (PI). The seroprevalence was 64.0% and 784 (88.3%) herds had at least
one seropositive animal. Two hundred and twenty six (97.4%) municipalities
showed at least one positive herd/animal. Only age influenced the presence of
neutralizing antibodies to this virus in animals. None of the exposure variables
analyzed was considered as a risk factor for the infection with BVDV in cattle
herds. Four (0.4%) of 960 seronegative samples were BVDV antigen positive. Based on these results, we concluded that BVDV infection is spread among cattle
herds in Goiás State, Brazil.

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Published

2010-04-07

How to Cite

BRITO, W. M. E. D. de; ALFAIA, B. T.; CAIXETA, S. P. de M. B.; RIBEIRO, A. C. C.; MIRANDA, T. de M. T.; BARBOSA, A. C. V. C.; BARTHASSON, D. L.; LINHARES, D. C.; FARIA, B. O. Bovine viral diarrhea virus (BVDV) infection in Goiás, Brazil. Revista de Patologia Tropical / Journal of Tropical Pathology, Goiânia, v. 39, n. 1, p. 07–20, 2010. DOI: 10.5216/rpt.v39i1.9494. Disponível em: https://revistas.ufg.br/iptsp/article/view/9494. Acesso em: 17 jul. 2024.

Issue

Vol. 39 No. 1 (2010)

Section

ORIGINAL ARTICLES

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