期刊
PESQUISA VETERINARIA BRASILEIRA
卷 26, 期 4, 页码 211-216出版社
REVISTA PESQUISA VETERINARIA BRASILEIRA
DOI: 10.1590/S0100-736X2006000400005
关键词
BVDV-1; BVDV-2; Pestivirus; phylogenetic analysis
Nineteen isolates of bovine viral diarrhea virus (BVDV) from Brazil were genetically characterized through partial nucleotide sequencing and analysis of the 5'UTR region. The isolates were grouped as BVDV-1 (11/19), BVDV-2 (6/19) or atypical pestivirus (2/19). Among the BVDV-l, eight isolates were classified as subgenotype BVDV-1 a, whereas most (4 out of 6) BVDV-2 belonged to subgenotype 2b. Two isolates from aborted fetuses were not classified into any genetic group, being considered atypical BVDVs. Genetic diversity among Brazilian BVDV isolates may be responsible far vaccination and diagnostic failure and therefore may influence the control strategies for BVDV infection in the country.
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