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. 2009 Oct;50(10):1075-9.

Detection, characterization, and control of bovine viral diarrhea virus infection in a large commercial dairy herd

Jeremy M Schefers  1 , James E Collins, Sagar M Goyal, Trevor R Ames
Affiliations

Detection, characterization, and control of bovine viral diarrhea virus infection in a large commercial dairy herd

Jeremy M Schefers et al. Can Vet J. 2009 Oct.

Abstract
in English, French

Detection, genetic characterization, and control of bovine viral diarrhea virus (BVDV) disease in a large commercial dairy herd is reported. Precolostral BVDV serum antibody was detected in 5.3% (12/226) of newborn calves before the test and removal of persistently infected (PI) animals and in 0.4% (2/450) of newborn calves after the removal of PI heifers.

Détection, caractérisation et contrôle de l’infection par le virus de la diarrhée virale bovine dans un grand troupeau laitier commercial. Un rapport sur la détection, la caractérisation génétique et le contrôle du virus de la diarrhée virale bovine (VDVB) dans un grand troupeau laitier commercial est présenté. La présence d’anticorps sériques contre le VDVB avant la prise de colostrum a été détecté chez 5,3 % (12/226) des veaux nouveau-nés avant le test et le retrait des animaux à infection persistante et chez 0,4 % (2/450) des veaux nouveau-nés après le retrait des génisses à infection persistante.

(Traduit par Isabelle Vallières)

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Figures

Figure 1
Figure 1
Phylogenetic tree analysis of BVDV detected in the BVDV PI cattle (bold) and sequences obtained from GenBank. The two sequences from the 2 newborn calves and the oldest BVDV PI heifer 7771 are identical to each other and most similar to the Draper type 1b strain over a 240 base pair segment of the 5′ UTR. The nucleic acid sequence of the isolate from 8527 BVDV PI heifer (younger heifer) is most similar to that of the Oregon C24V type 1a strain over a 240 base pair segment of the 5′ UTR.
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