【摘要】 江西省崇义县横水镇在 1996年 10月 2 5日至 11月 1日发生了 112 2例人芽囊原虫病 ,人群总发病率为2 .39%。为查明本次暴发流行的原因 ,1997年我们采用疫情资料回顾性调查和病原体实验研究的方法 ,证实本次暴发流行是通过污染的水而传播 ,同时与带虫者粪便中病原体的耐低渗性和居民饮用水的不良卫生习惯有关。更多还原

【Abstract】 An outbreak of blastocystisasis epidemic involving 1 122 cases within 2 months(October and November) in 1996 occurred in Hengshui Township of Chongyi County, Jiangxi Province. The overall attack rate of the population reached 2.39%. The epidemic was investigated retrospectively from reserves avilable, and the causative organism was studied experimentally in 1997. The investigation revealed that the epidemic was spread through polluted water. It was found that the strain of Blastocystis hominis in carrier feces could survive for ten days in distilled water, and this high resistance of the parasite might has something to do with the spread of the epidemic, the habit of the local residents to drink and use water polluted with this strain of B. hominis seemed to be strongly related to the occurrence of this epidemic.更多还原