2009-2014年铜陵县血吸虫病疫情分析

Endemic situation of schistosomiasis in Tongling County of Anhui Province from 2009 to 2014

目的了解安徽省铜陵县血吸虫病疫情变化情况,为总结"十二五"防治成果、制定"十三五"规划提供参考依据。方法收集2009-2014年铜陵县血吸虫病防治年报及有关螺情和人群病情资料,分析血吸虫病流行状况和特点。结果 2009-2014年人群感染率和血检阳性率显著下降,6年间仅2009年出现1例急性感染病例;家畜感染率下降显著,2010年较2009年下降了91.10%;5年间钉螺面积和活螺平均密度呈下降趋势,但2011-2012年山丘地区活螺平均密度有所升高,2011年以后未查到感染性钉螺。结论铜陵县血吸虫病人群感染率已控制在较低水平,但湖沼地区有螺面积仍较大,内陆有螺环境活螺平均密度较高。今后的血防工作规划要以控制湖沼地区螺情、消灭内陆残存螺点为主,以巩固防治成果。

Objective To understand the endemic situation of schistosomiasis in Tongling County of Anhui Province,so as to provide the evidence for summarizing the＂Twelfth Five-Year Plan＂and formulating the＂Thirteenth Five-Year Plan＂. Meth Methods The data of schistosomiasis control reports and other information about Oncomelania hupensis status and schistosomiasis situation of population and livestock were collected and analyzed statistically in Tongling County from 2009 to 2014. Results From 2009 to 2014,the schistosome infection rate and blood positive rate of the population decreased significantly,and only one case of acute schistosome infection was found in 2009. The schistosome infection rate of livestock decreased significantly,and the decreasing rate was 91.10% from 2009 to 2010. From 2009 to 2014,the snail area and average density of living snails presented decreasing trends but the densities of living snails increased in 2011 and 2012. After 2011,no schistosome infected snails were found. Conclusions The schistosome infection rate of population has been controlled at a low level in Tongling County,but the snail area is still large in the marshland and lake regions,and the density of living snails is relatively high in the inland. Therefore,the schistosomiasis control work,especially snail control,still should be strengthened.