Article
Divergence Time of Porcine Reproductive and Respiratory Syndrome Virus Subtypes
6 Jul 2005
Abstract excerpt
Porcine reproductive and respiratory syndrome virus (PRRSV) recently emerged in domestic pigs of Western Europe and North America. Although time of emergence was identical on the two continents, genetic composition was markedly different with a clear geographical subtype structure, indicating that subtypes diverged in separate reservoirs prior to emergence. Genetic analyses have shown that the most recent common...
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