It is very difficult to differentially diagnose PRV from PPV because both of them are etiologic agents of infectious abortion with similar symptoms.

• 由于猪伪狂犬病毒(PRV)和猪细小病毒(PPV)均是引起母猪流产的病原且都是DNA病毒,加之二者临床症状相似,所以很难鉴别。