Porcine circovirus type 2 (PCV2) is the causative agent of postweaning multisystemic wasting syndrome (PMWS) that has become an emerging and important disease in swine.

• 猪圆环病毒2型（Porcine circovirus type 2,PCV2）是断奶仔猪多系统衰竭综合征(Postweaning multisystemic wasting syndrome, PMWS) 等相关疾病的重要病原之一。