2009~2012年安徽怀宁县血吸虫病疫情

Analysis of schistosomiasis endemic situation in Huaining County of Anhui Province from 2009 to 2012

目的 了解安徽省怀宁县血吸虫病疫情变化情况,为制订血吸虫病防治策略提供参考依据.方法 收集2009~2012 年怀宁县血吸虫病疫情监测报表、年报表及有关螺情、病情资料,分析血吸虫病流行状况和特点.结果 2009~2012 年,该县省级血吸虫病监测点人群感染率显著下降,2012 年全县三类村和四、五类村血吸虫病血检阳性率较2009 年分别下降了45.54%和51.41%,2012 年现存晚期血吸虫病人为313 例,4 年间未发现急性感染病人.2009~2012 年全县耕牛感染率分别为1.5%、1.48%、0.88%和0.71%,呈逐年下降趋势;4 年中全县有螺面积降幅不明显,但感染性钉螺面积和密度明显下降;2012 年未查获感染性钉螺.结论 大力推进以传染源控制为主的综合性防治策略是有效控制血吸虫病疫情的治本之策.

Objective To understand the tendency of endemic situation of schistosomiasis in Huaining County,Anhui Province,and provide basis for making out schistosomiasis control strategies.Methods The epidemiological data of schistosomiasis in Huaining from 2009 to 2012 were collected,and the endemic situation and features were analyzed.Results The infection rate of residents in the provincial surveillance site of Huaining decreased significandy in the 4 years,and the positive rate of blood examination in residents of the third class villages and of the forth and fifth class villiages decreased 45.54%and 51.41%respectively in 2012 compared with that in 2009.There were 313 advanced schistosomiasis cases in 2012,and no acute cases were found from2009 to 2012.The infection rate of catde in the 4 years was 1.5%,1.48%,0.88%and 0.71%,respectively,and there was an obviously decreasing tendency.There was no significant decrease on snail areas from 2009 to 2012,while the areas with infected snails and the mean density of infected snails both decreased obviously,and no infected snails were found in 2012.Conclusion It was suggested that promoting the comprehensive control strategy with emphasis on infectious source control was an effective measure to control schistosomiasis.