Porcine circovirus was firstly isolated from the cell line PK15 by Tisher at 1974. Porcine circovirus is an unenveloped DNA virus, belonging to the circoviridae which includes Human TTV, CAV and PBFDV additionally.

• 猪圆环病毒(Porcine circovirus,PCV)首先由Tischer于1974年从PK-15猪肾传代细胞系中分离获得。 猪圆环病毒为无囊膜单股环状DNA病毒,属圆环病毒科(Circoviridae)圆环病毒属成员,该科还包括人TT病毒(TTV),鸡贫血病毒(CAV),鹦鹉喙羽病病毒(PBFDV)等。