No cytopathic effect (CPE) can be observed for CSFV when cultured in vitro on host cells though serious damages occur in many tissues and organs for in vivo infection in pigs.
猪瘟病毒感染造成机体多种组织损伤，但在离体培养细胞中通常不产生致细胞病变[效应]应(cytopathic effect, CPE)，对猪瘟病毒致病机制的研究，因为缺少合适的细胞研究模型而进展缓慢。