2009-2014年鄱阳湖区以传染源控制为主的血吸虫病综合防治效果观察

Observation on comprehensive control strategy for schistosomiasis with emphasis on infectious source control in Poyang Lake areas from 2009 to 2014

目的观察鄱阳湖湖沼型流行区以传染源控制为主的血吸虫病综合防治策略试点的长期防治效果。方法选择鄱阳湖血吸虫病重度流行区爱国、新和、光辉3个村为试点,全面实施以机代牛、封洲禁牧等控制传染源为主的综合防治策略,收集2009-2014年人群病情和螺情数据,比较人群血吸虫感染情况、钉螺感染率和水体危险性的变化。结果 2009-2014年,3个试点村均未发现粪检血吸虫阳性者;牛洲草洲活螺平均密度呈下降趋势,六○圩草洲活螺平均密度基本持平略有下降,2个洲滩均未发现感染性钉螺;解剖哨鼠未发现血吸虫成虫。结论实施以控制传染源为主的血吸虫病防治策略可以使血吸虫病疫情在较长时间内保持稳定。

Objective To evaluate the long-term effect of the comprehensive control strategy for schistosomiasis with empha-sis on infectious source control in marshland-type endemic areas of Poyang Lake. Methods Three heavy endemic villages with schistosomiasis in the lake areas were selected as pilots for the comprehensive control strategy which included replacing bovine with tractors and forbidding grazing on marshlands. The data of schistosome infections of residents and Oncomelania hupensis snails were collected and analyzed statistically from 2009 to 2014. Results There were no patients with schistosomiasis through feces examinations in the 3 pilot villages. The average density of live snails in Niuzhou marshland showed a decline trend and the density was stable in Liulingwei marshland. There were no infected snails in the 2 marshlands and no schistosome adult worms were found in the sentinel rats Conclusion The implantation of the comprehensive control strategy for schistosomiasis with em-phasis on infectious source control can control the prevalence of schistosomiasis during a long period.