1998-2009年安徽省长江流域螺情变化趋势分析  

Analysis of trend of Oncomelania snail status in Yangtze River valley of Anhui Province,1998-2009

作　　者：何家昶[1] 王家生[2] 卢金友[2] 李婷婷[1] 高风华[1] 周平 朱传明 何龙珠[5] 虞贝贝[1] 张世清[1] 

机构地区：[1]安徽省血吸虫病防治研究所,合肥230061 [2]长江科学院河流研究所 [3]安徽省东至县血吸虫病防治站 [4]安徽省当涂县血吸虫病防治站 [5]安徽省铜陵县血吸虫病防治站

出　　处：《中国血吸虫病防治杂志》2011年第2期199-201,共3页Chinese Journal of Schistosomiasis Control

基　　金：水利部公益性行业专项(200801004)

摘　　要：目的了解安徽省长江流域钉螺分布变化趋势,为制定血吸虫病防治策略提供依据。方法收集1998-2009年间安徽省长江流域钉螺分布面积、复现和新发现钉螺面积及钉螺与感染性钉螺密度等资料,观察其变化趋势,并分析影响其变化的相关因素。结果 1998年特大洪水之后,长江流域钉螺面积出现几次波动,但总体呈下降趋势。新发现钉螺面积在1999、2004年和2006年出现3个高峰期,复现钉螺面积在1998年和2004年出现2个高峰期。江心滩活螺密度及感染性钉螺密度总体上均高于江边滩,江心滩活螺密度在2003年出现高峰期,感染性钉螺密度在2003-2004年、1999年和2006年出现高峰期;江边滩活螺密度及感染性钉螺密度均于1998年出现高峰期。结论长江流域钉螺受自然和社会等多方面因素影响,短期内难以消除,因此在加强钉螺控制的同时,还必须加强传染源控制。Objective To understand the trend of Oncomelania hupensis snail distribution in Yangtze River valley of Anhui Province so as to provide an evidence for making out schistosomiasis prevention and control strategies in the future.Methods The snail data from 1998 to 2009 of the Yangtze River valley in Anhui Province were collected including the snail area,newly occurred and re-occurred snail areas,densities of snails and infected snails,etc.,and the trend and influence factors were analyzed.Results With several fluctuations,the snail area showed a trend of declining in general after the devastating summer flooding in 1998.From 1998 to 2009,3 peaks of newly occurred snail areas appeared in 1998,2004 and 2006 and 2 peaks of re-occurred snail areas appeared in 1998 and 2004.The densities of living snails and infected snails were more severe in banks of the Yangtze River than in islets of the Yangtze River.During 12 years,1 peak of living snail density appeared in 2003,and 3 peaks of infected snail density appeared in 1999,2003-2004 and 2006 in the islets of the Yangtze River.The densities of living snails and infected snails in banks of the Yangtze both appeared 1 peak in 1998.Conclusions The distribution of snails in the Yangtze River valley is related to nature,society and financial circumstances,and it is hard to completely perform the snail control in a short-term.Therefore,at the same time of strengthening snail control,we should also strengthen infectious source control.

关 键 词：钉螺 血吸虫病 长江流域 安徽省 

分 类 号：R383.24[医药卫生—医学寄生虫学]