有螺环境野粪检测对血吸虫病传染源监测的作用

目的评价有螺环境野粪检测对血吸虫病传染源监测的作用，查找湖北省血吸虫病防治工作中薄弱环节，提出 针对性的防治对策与措施。方法按水系抽取湖北省荆州市沮漳河滩、嘉鱼县长江外滩、天门市汉北河滩、钟祥市长寿 河滩4个人、畜常到的有螺环境，开展钉螺调查和野粪血吸虫病传染源监测。结果4处环境均有钉螺分布，均有家畜放 牧，且有牛和（或）羊粪便污染有螺环境，4处环境均查到阳性牛粪，总的孵化阳性率合计为47.62%。结论血吸虫病流 行区有螺环境牛粪孵化血吸虫毛蚴阳性较高，存在血吸虫病传播风险。

Effect of wild feces detection in Oncomelania hupensis environments on surveillance of infection source of schistosomiasis

Objective To evaluate the effect of wild feces detection in Oncomelania hupensis environments on the surveil? lance of infection source of schistosomiasis，and find the weakness in schistosomiasis control in Hubei Province，so as to put for? ward the targeted strategies and measures. Methods Four environments with O. hupensis snails in endemic areas of Hubei Provinces，where human and livestock often haunted，were selected according to the river systems，namely the Juzhanghe River beach in Jingzhou City，Changjiang River beach in Jiayu County，Hanbei River beach in Tianmen City，and Changshou River beach in Zhongxiang City，then the snail survey and wild feces detection were implemented in the selected environments. Re? sults There were O. hupensis snails，livestock，wild feces of cattle or sheep as well as positive cattle feces found in all the 4 environments，and the positive rate of schistosome miracidium incubation was 47.62%. Conclusion The schistosome miracidi? um positive rate of wild feces of cattle is high in the environments with snails in endemic areas of Hubei Province，which has high risk for schistosomiasis transmission.