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Recombination between Vaccine and Field Strains of Porcine Reproductive and Respiratory Syndrome Virus

7 Nov 2019

Abstract excerpt

We isolated and plaque purified IA76950-WT and IA70388-R, 2 porcine reproductive and respiratory syndrome viruses from pigs in the same herd in Iowa, USA, that exhibited coughing and had interstitial pneumonia. Phylogenetic and molecular evolutionary analysis indicated that IA70388-R is a natural recombinant from Fostera PRRSV vaccine and field strain IA76950-WT.

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PMID: 31742529
DOI: 10.3201/eid2512.191111

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