大堤外侧隔离沟改造血吸虫易感地带的效果  

STUDY ON THE IMPACT OF ISOLATED CANAL AGAINST THE HIGH TRANSMISSION ZONE OF SCHISTOSOMIASIS OUTSIDE EMBANKMENT

作　　者：朱诗好[1] 魏望远[2] 徐昕 佘孟良 魏乐如 曾建国 

机构地区：[1]湖南省水利厅血吸虫病防治处,长沙410007 [2]湖南省血吸虫病防治研究所 [3]湖南省资阳区刘家湖血吸虫防治院 [4]湖南省沅江市茶盘洲血吸虫病防治院 [5]湖南省建新农场血吸虫病防治办公室

出　　处：《中国血吸虫病防治杂志》2002年第6期431-435,共5页Chinese Journal of Schistosomiasis Control

基　　金：湖南省卫生厅 ( 2 0 0 00 99)资助;湖南省水利厅洞工局部分资助

摘　　要：目的　研究大堤外侧隔离沟改造血吸虫易感地带的效果。方法　采用纵向和横向对照研究 ,调查隔离沟区域钉螺密度和感染螺密度 ,横向比较居民感染率。结果　改造后 ,试点区域钉螺感染率下降 76.5 0 % -10 0 % ;感染螺密度降低 78.46% -10 0 % ;居民血吸虫感染率下降 45 .65 %。结论　在大堤外侧设置隔离沟既可加固大堤 ,又可改造钉螺孳生环境 ,减少人、畜接触疫水频率 。Objective To evaluate the impact of isolated canal against the high transmission zone of schistosomiasis outside embankment. Methods the density of snails and infested snails outside embankment were investigated by longitudinal and transverse comparison methods. The infection rate of residents in the experiment group was compared with that in the control group. Results After building up the isolated canal, the rate of infested snail decreased by 76 50%-100%, the density of infested snail reduced by 78 46%-100%, and the infection rate of residents in the experimental group reduced by 45 65% compared with that in the control group. Conclusion Setting up the isolated cannal outside embankment could reinforce the dam, modify the environment of snail habitats, and decrease the frequency of infested water contact of human and animals. So it is important for health of residents.

关 键 词：水利工程 日本血吸虫 隔离沟 

分 类 号：R383.24[医药卫生—医学寄生虫学]