Genetic typing of porcine reproductive and respiratory syndrome virus isolates from central European countries.

All thirty-three but one porcine reproductive and respiratory syndrome virus (PRRSV) isolate originating from pigs in Austria, Czech Republic and Slovakia were typed on the basis of partial ORF5 sequence as PRRSV-1, subtype EU-1. The single isolate of PRRSV-2 originated from Slovakia.

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