猪繁殖与呼吸障碍综合征(porcine reproductive and respiratory syndrome,PRRS)是由猪繁殖与呼吸障碍综合征病毒(Porcine reproductive and respiratory syndrome,PRRSV)引发的猪的一种病毒性传染病,主要临床症状为怀孕母猪早...
To study the quasispecies diversity of porcine reproductive and respiratory syndrome virus (PRRSV), open reading frame 5 (ORF5) of strain SD0612 was amplified and cloned. Sixty clones of ORF5 were sequenced and analyz...