嗜人按蚊分布区媒介按蚊对溴氰菊酯敏感性的监测  

SURVEILLANCE OF SUSCEPTIBILITY OF ANOPHELES VECTORS TO DELTAMETHRIN IN ANOPHELES ANTHROPOPHAGOUS AREAS

作　　者：余品红[1] 张华勋[1] 黄光全[1] 明桂珍[1] 徐博利[1] 

机构地区：[1]湖北省疾病预防控制中心,武汉430079

出　　处：《寄生虫与医学昆虫学报》2003年第3期152-156,共5页Acta Parasitologica et Medica Entomologica Sinica

基　　金：卫生部/WHO基金资助项目 ;编号 :1 998No .6

摘　　要：目的 :了解溴氰菊酯浸帐灭蚊多年后 ,嗜人按蚊和中华按蚊的敏感性。方法 :采用WHO成蚊滤纸接触法 ,以区分剂量来判定抗性级别 ,以LT50 来确定抗性程度。结果 :嗜人按蚊 :WHO区分剂量标准 ,死亡率 1 0 0 % ;我国区分剂量标准 ,死亡率 >80 %。中华按蚊 :WHO区分剂量标准 ,死亡率 >90 % ;我国区分剂量标准 ,死亡率 <80 %。浸帐灭蚊 1～ 2年、 3～ 5年和 6年的地区 ,嗜人按蚊LT50 分别为 8 6 9min、7 4 8mim (6年地区未采集到嗜人按蚊 ) ,中华按蚊LT50 分别为 1 1 98min、 1 5 38min、 1 6 2 7min。结论 :嗜人按蚊对溴氰菊酯尚未产生抗性。中华按蚊虽已产生抗性 ,但抗性程度不高 。Aim:To understand the susceptibility of Anopheles anthropophagus and Anopheles sinensis to deltamethrin after several years mosquito control with impregnated net method.Methods:To determine the resistant level by tentative diagnostic dose and degree by LT 50 with the standard methods by WHO.Results:For An anthropophagus :The mortalities were 100% and over 80% respectively according to standard tentative diagnosis dose of WHO and China.For An.sinensis :They were above 90% and less 80% respectively.On the other hand,LT 50 of An.anthropophagus were 8 69 and 7 48min(No An.anthropophagus are collected in 6 year area),LT 50 of An.sinensis were 11 98、15 38 and 16 27 min in the regions where the impregnated net has been used for 1～2 years,3～5 years and 6 years respectively.Conclusions:No resistance of An.anthropophagus to deltametherin has been found in this research. An.sinensis had initial resistance,so we must pay more attention on its monitor.

关 键 词：嗜人按蚊 分布区 媒介 溴氰菊酯 敏感性 监测 疟疾 杀虫剂 

分 类 号：R384[医药卫生—医学寄生虫学]