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Recombination in vaccine and circulating strains of porcine reproductive and respiratory syndrome viruses.

ABSTRACT: Em2007, a porcine reproductive and respiratory syndrome virus (PRRSV) variant with a unique 68 aa deletion in Nsp2, was recently isolated in China. Phylogenetic and molecular evolutionary analyses indicated that Em2007 is a natural recombinant between a vaccine strain of PRRSV and circulating virus. We also tested its pathogenicity in piglets.

SUBMITTER: Li B

PROVIDER: S-EPMC3044526 | biostudies-literature |

REPOSITORIES: biostudies-literature

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