山丘地区感染性钉螺分布与急性血吸虫病流行的关系

目的探讨山丘地区感染性钉螺分布与急性血吸虫病（急血）流行的关系。方法收集并分析1999—2008年安徽省石台县历年感染性钉螺分布和急血发病资料。结果所确诊的48例急血病例中，在距感染性螺点30m以内感染发病13例，50m内感染发病11例，100m内感染发病10例，150m内感染发病6例，200m内感染发病4例，提示距离感染性螺点越近，急性血吸虫感染发生率越高。结论山丘地区急性血吸虫感染与距感染性螺点的距离有关。对重点区域强化灭螺措施，加强对重点暴露人群的防护力度，加强重点人群血防健康教育是控制山丘地区急血流行的重要措施。

Relationship between distribution of infected snails and transmission of acute schistosomiasis in hilly regions

Objective To explore the relationship between the distribution of infected snails and transmission of acute schistosomiasis in hilly regions.Methods The data concerning the distribution of the infected snails and acute schistosomiasis in Shitai County,Anhui Province from 1999 to 2008 were collected and analyzed.Results The sehistosome infection rate of human increased as the distance between the settings with infected snails and activity sites of humans shortened.Conclusions Acute infection of schistosome of human is associated with the distance between the settings with infected snails and activity sites of them.Strengthening the measures of snail control in key regions,protecting key populations and carrying out health education for schistosomiasis control are important approaches to control the transmission of acute schistosomiasis in hilly regions.