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Recombination in Vaccine and Circulating Strains of Porcine Reproductive and Respiratory Syndrome Viruses

26 Nov 2009

Abstract excerpt

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.

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Identifiers

PMID: 19961694
DOI: 10.3201/eid1512.090390

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