Porcine reproductive and respiratory syndrome virus (PRRSV) is the causative agent of PRRS, which caused reproductive failure in sows and respiratory problems in piglets.

• 猪繁殖与呼吸综合征是由猪繁殖与呼吸综合征病毒(PRRSV)引起的一种以母猪繁殖障碍和仔猪呼吸道疾病为特征的传染病。