Porcine reproductive and respiratory syndrome (PRRS) is a viral disease of domestic swine characterized by pregnant sow reproductive failure, dyspnea, high mortality in piglets and respiratory signs in growing pigs.

• 猪繁殖与呼吸综合征(porcine reproductive and respiratory syndrome,PRRS)是以怀孕母猪繁殖障碍和仔猪呼吸困难、高死亡率及育肥猪呼吸道症状为特征的一种病毒性传染病。