【摘要】 目的了解近年来安徽省感染性钉螺分布及变化情况。方法收集2006~2012年全省钉螺调查数据,建立感染性钉螺分布的空间数据库.分析感染性钉螺分布和变化情况。结果 2006~2012年全省查出的感染性钉螺环境主要分布在疫情控制县区;与2006年相比,2012年全省感染性钉螺分布的县数、环境数、感染性钉螺面积、感染性钉螺密度和钉螺感染率分别下降了79.3%、92.7%、91.4%、95.2%和95.5%;7年间重复查出的感染性钉螺环境数占总感染性钉螺环境数的27%。结论 7年间,由于积极防制和自然等因素,全省的感染性钉螺分布显著下降,但发生感染性钉螺的环境仍难以预测,需加大钉螺调查和控制的力度,才能确保实现2009~2015年中长期血防规划。更多还原

【Abstract】 Objective To understand the distribution of infected Oncomelania snails in Anhui Province in recent years.Methods The data of snail distribution from 2006 to 2012 were collected,the spatial database of infected snails was set up,and the distribution of infected snails was analyzed.Results From 2006 to 2012,the infected snails were mainly distributed in the transmission-controlled endemic regions.Compared with2006,the number of counties with infected snails,the number of spots with infected snails,the area with infected snails,the mean density of infected snails and the infection rate of snails decreased by 79.3%,92.7%,91.4%,95.2%and 95.5%,respectively.The number of environments with infected snails found repeatedly accounted for 27%in the recent 7 years.Conclusion In the recent 7 years,the distribution of infected snails in Anhui Province showed a downward trend by effective measures for schistosomiaisis control and some natural factors.But the distribution of infected snail is difficult to forecast,so the risk of infection is still high.Snail survey and control should be strengthened to realize the target of transmission control before 2015.更多还原