荆州市感染性钉螺环境分布调查及处置

采用系统抽样结合环境抽查法进行查螺， 对粪检阳性病人可能的感染地点进行问卷调查。调查表明荆州市 2004-2010年有1 721处感染性螺点， 其中94.1%的感染性螺点与最近居民点距离为500 m， 97%的粪检阳性病人自认的感染地点与最近居民点距离为400 m。采用问卷法调查粪检阳性病人有助于快速确定感染性钉螺环境。

Environmental distribution and disposal measures of infected Oncomelania snails in Jingzhou City, Hubei Province

A survey of Oncomelania snail distribution was carried out with the systematic sampling method in combination with the environmental sampling method. A questionnaire survey was performed to find out the sites where stool examination?posi? tive patients were infected. The results showed that there were 1 721 infected snail spots in Jingzhou City. Most of infected snail spots (94.1%) were only 500 m far away from the nearest residential areas from 2004 to 2010. About 97% of patients considered that the sites where they were infected with schistosome were only 400 meters far away from their residential areas. In conclusion, the survey with a questionnaire method in patients with positive stool examinations can quickly identify the environments with in? fected snails.