牛肉住肉孢子虫的种类及其危害研究进展

Species and hazard of Sarcocystisin beef

黄牛是住肉孢子虫的中间宿主,住肉孢子虫危害牛肉品质和安全,人类食用患病牛肉会危害健康,引起腹痛、腹泻等症状。我国黄牛住肉孢子虫病的阳性率为3.64%~98.1%,其他国家黄牛住肉孢子虫病的阳性率为42.44%~98.72%。目前,已确定的黄牛住肉孢子虫虫型有5种,分别为S.cruzi、S.hirsuta、S.hominis、S.rommeli、S.heydorni,我国已报道的黄牛住肉孢子虫型有3种S.cruzi、S.hominis和S.heydorni,前两种虫型对牛和人均有致病性。本文综述了黄牛牛肉中住肉孢子虫的生活史、流行情况、种类、致病性以及诊断方法,为监控牛肉中的住肉孢子虫提供参考依据。

Sarcocystis pose harm on human and domestic animal.The acute infection of Sarcocystis could cause abortion,death and caused huge economic losses for farms.Cattle were intermediate host of Sarcocystis.Consumption beef containing Sarcocystis cysts endanger human health,causing abdominal pain and diarrhea.The positive rate was 42.44%-98.72% globally,and it was reported 3.64%-98.1%in China.Five Sarcocystis species were confirmed in cattle,S.cruzi,S.hirsuta,S.hominis,S.rommeli,and S.heydorni.Three species have been reported in cattle from China：S.cruzi,S.hominis,and S.heydorni.It had been verified that S.cruzi and S.hominis had strong pathogenicity to cattle and human.This paper reviews the life cycle,epidemiology,classification,pathogenicity and diagnosis of cattle Sarcocystis,providing reference for supervisory and control Sarcocystis in beef.