黑色地膜覆盖法在血吸虫病水网型流行区的中长期灭螺效果观察  

Observation on the medium and long-term molluscicidal effect of black film mulching in water network endemic areas of schistosomiasis

作　　者：黎桂福[1] 於雪琴[1] 陈照辉 林长坡[1] 戴燕丽[1] 姚正原 蔡黎[3] 靳艳军[3] LI Gui-fu;YU Xue-qin;CHEN Zhao-hui;LIN Chang-po;DAI Yan-li;YAO Zheng-yuan;CAI Li;JIN Yan-jun(Qingpu District Center for Disease Control and Prevention,Shanghai City,Shanghai 201799;Liantang Town Community Health Service Center,Shanghai 201715;Shanghai Center for Disease Control and Prevention,Shanghai 200336,China)

机构地区：[1]上海市青浦区疾病预防控制中心,上海201799 [2]上海市青浦区练塘镇社区卫生服务中心,上海201715 [3]上海市疾病预防控制中心,上海200336

出　　处：《热带医学杂志》2020年第12期1633-1636,共4页Journal of Tropical Medicine

基　　金：青浦区卫生健康系统第四轮学科建设和人才培养项目(WD2019-40)。

摘　　要：目的了解黑色地膜覆盖法在血吸虫病水网型流行区的中长期灭螺效果。方法在覆膜有螺区域,根据通潮港、断头浜、池(藕)塘、沟渠等不同有螺环境类型、钉螺密度等设置6个观察点,在每个观察点投放5袋装有100只活钉螺的效应螺袋,在效应螺投入后第4、6、8、10和12个月分别回收1袋效应螺袋的同时采集其附近覆膜有螺环境自然泥土,分别计数其中钉螺数,并观察钉螺死活情况。同时收集观察期间区域内气温、地温、日照时数等气象数据。结果 5批次回收6个观察点效应螺总体回收率为92.33%(2 770/3 000),各批次、各观察点回收的2 770只钉螺均死亡,钉螺灭活率为100.00%。期间,共捕获覆膜有螺环境自然泥土中钉螺720只,均死亡,钉螺灭活率为100.00%。结论黑色地膜覆盖法在血吸虫病水网型流行区的通潮港、断头浜、池(藕)塘、沟渠等不同有螺环境中的中长期灭螺效果良好。Objective To know the medium and long-term molluscicidal effect of black film mulching in water network endemic areas of schistosomiasis.Methods 6 observation points were set up in the black film mulching areas according the different environmental types and the oncomelania snail densities.5 bags with 100 movable oncomelania snails were put in at every observation point.1 bag with oncomelania snails and the environmental soil were collected from each observation point at the 4-th month,6-th month,8-th month,10-th month and 12-th month.The oncomelania snails in the bag and the environmental soil were collected and counted.And each of the oncomelania snails were observed being movable or not.Meanwhile,the data of temperature,ground temperature and sunshine duration in the district during the observation was collected.Results The total number of the oncomelania snails collected for 5 times from the bags in the 6 observation points was 2 770.And the rate of oncomelania snails being collected was 92.33%.The inactivation rate of the 2 770 oncomelania snails being collected was 100.00%.Meanwhile,720 oncomelania snails were collected from the environmental soil.The inactivation rate of the 720 oncomelania snails was also 100.00%.Conclusion It had well medium and long-term molluscicidal effect mulching black film in different environmental types with oncomelania snails in water network endemic areas of schistosomiasis.

关 键 词：灭螺效果 钉螺 黑色地膜 血吸虫病水网型流行区 

分 类 号：R532.21[医药卫生—内科学]