Molecular epidemiology of PRRSV in South China from 2007 to 2011 based on the genetic analysis of ORF5.

Porcine reproductive and respiratory syndrome virus (PRRSV) has proven to be highly genetically variable; however, comprehensive information regarding the virus's genetic diversity in South China is limited. In this study, a total of 3199 clinical samples were collected from 267 pig farms suspected of PRRSV infection between 2007 and 2011. The ORF5 genes of… CONTINUE READING