Monitoring and molecular characterization of group Drotavirus in Brazilian poultry farms

Monitoramento e caracterização molecular de rotavírus do grupo D em criações comerciais brasileiras

Laila A.R. Beserra Nara T.C.G. Bernardes Paulo E. Brandão Fabio Gregori About the authors

Abstract:

Rotaviruses are etiological agents of diarrhea both in humans and in several animal species. Data on avian Group D rotaviruses (RVD) are scarce, especially in Brazil. We detected RVD in 4 pools of intestinal contents of broilers, layer and broiler breeders out of a total of 111 pools from 8 Brazilian states, representing an occurrence of 3.6%, by a specific RVD RT-PCR targeting the VP6 gene. Phylogenetic tree confirmed that the Brazilian strains belong to group D and 3 of the sequences were identical in terms of amino acid whereas one showed 99.5% identity with the others. The sequences described in this study are similar to other sequences previously detected in Brazil, confirming the conserved nature of the VP6 protein.

Index Terms:
VP6; rotavirus; group D; avian; broilers

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