安徽省池州市贵池区实施以传染源控制为主的血吸虫病综合防治策略效果评价

Effect of comprehensive schistosomiasis control strategy with emphasis on infectious source control in Guichi District,Chizhou City,Anhui Province

目的评价以传染源控制为主的血吸虫病综合防治策略在湖沼型地区的防治效果。方法2006～2008年,分年度在安徽省池州市贵池区秋浦河流域,长江、九华河流域,以及升金湖流域实施以传染源控制为主的血吸虫病综合防治策略,在以上流域的40个流行村中随机抽取13个流行村,观察综合防治策略实施前后病情和螺情变化,评价综合防治策略效果。结果2008年秋浦河流域人群平均血吸虫感染率、感染性钉螺密度和钉螺感染率较综合防治策略实施前的2005年分别下降了68.60%、96.00%和96.00%;长江、九华河流域人群平均血吸虫感染率、感染性钉螺密度和钉螺感染率较综合防治策略实施前的2006年分别下降了51.55%、71.15%和68.97%;升金湖流域人群血吸虫平均感染率、感染性钉螺密度和钉螺感染率较综合防治策略实施前的2007年分别下降了49.58%、73.58%和51.78%。综合防治策略实施后,以上流域急性血吸虫病病例明显减少。结论在湖沼型地区实施以传染源控制为主的综合防治策略能有效控制血吸虫病疫情。

Objective To evaluate the effect of the comprehensive strategy with emphasis on infectious source control for schistosomiasis control in marshland and lake regions. Methods The comprehensive strategy with emphasis on infectious source control was implemented in the Qiupu River basin,the Changjiang and Jiuhua River basin and the Shengjin Lake basin in the years of 2006,2007 and 2008,respectively,and 13 villages were randomly selected from 40 villages of the basins,schistosomiasis prevalence and snail status of the selected villages were observed,and the effect of the comprehensive control strategy was evaluated. Results In the Qiupu River basin,compared with 2005,the average infection rate of residents,the density of infected snails and the infection rate of snails decreased by 68.60%,96.00% and 96.00%,respectively in 2008. In the Changjiang and Jiuhua River basin,compared with 2006,the average infection rate of residents,the density of infected snails and the infection rate of snails decreased by 51.55%,71.15% and 68.97%,respectively in 2008. In the Shengjin Lake basin,compared with 2007,the average infection rate of residents,the density of infected snails and the infection rate of snails decreased by 49.58%,73.58% and 51.78%,respectively in 2008. The number of acute schistosomiasis of the three basins decreased significantly after implementing the comprehensive control strategy. Conclusion Implementing the comprehensive strategy with emphasis on infectious source control in marshland and lake regions can control the prevalence of schistosomiasis effectively.