河南省部分地区中华按蚊对DDT和溴氰菊酯敏感性调查

发布时间：2018-01-02 09:27

本文关键词：河南省部分地区中华按蚊对DDT和溴氰菊酯敏感性调查　出处：《中国病原生物学杂志》2013年03期 　论文类型：期刊论文

【摘要】：目的分析河南省疟疾媒介中华按蚊对DDT和溴氰菊酯的敏感性,为制定疟疾媒介防治对策提供依据。方法在河南省桐柏县、永城市、淮滨县3县(市)现场分别捕获吸血后中华按蚊成蚊,采用WHO推荐的成蚊滤纸接触法进行检测,计算中华按蚊分别接触4%DDT(1.428g/m2),0.05%溴氰菊酯(0.0178g/m2)的半数击倒时间(KT50)和24h死亡率,判定抗性级别。结果在河南省桐柏县、永城市、淮滨县分别捕获吸血后中华按蚊成蚊206、214和216只,接触DDT的KT50分别为2 067.04、728.45和14 380.97 min;接触溴氰菊酯的KT50分别为342.87、55 809.53和2 481.04min。接触DDT 24h死亡率分别为17.82%、16.35%和21.15%,抗性级别均为R级;接触0.05%溴氰菊酯24h死亡率分别为43.81%、42.73%和46.43%,抗性级别均为R级。结论河南省中华按蚊对DDT和溴氰菊酯已经产生较强抗性。
[Abstract]:Objective to analyze the sensitivity of the Henan province malaria vector Anopheles sinensis to DDT and deltamethrin, provide the basis for the development of malaria prevention and control measures. Methods in Tongbai County, Yongcheng City, Henan Province, Huaibin County in 3 counties (city) the scene were captured after sucking the Anopheles sinensis, recommended by WHO mosquito contact filter paper method was used. The calculation of Anopheles sinensis were exposed to 4%DDT (1.428g/m2), 0.05% deltamethrin (0.0178g/m2) half down time (KT50) and 24h mortality, determine the resistance level. Results in Tongbai County, Henan Province, Yongcheng City, Huaibin county were captured after sucking the Anopheles sinensis in 206214 and 216, with DDT KT50 were 2 067.04728.45 and 14380.97 min; contact deltamethrin KT50 were 809.53 342.87,55 and 2 481.04min. contact DDT 24h mortality rates were 17.82%, 16.35% and 21.15%, the resistance levels were rated 0.05% deltamethrin 24h dead contact; The death rates were 43.81%, 42.73% and 46.43%, the resistance levels were rated. Conclusion of Anopheles sinensis from Henan province has produced strong resistance to DDT and deltamethrin.

【作者单位】：河南省疾病预防控制中心;
【基金】：河南省科技攻关计划项目(No.092102310007) 河南省卫生科技创新型人才工程专项经费资助项目
【分类号】：R384.1
【正文快照】： 中华按蚊是河南省按蚊的优势种[1],也是主要的传疟媒介之一,应用生化杀虫剂防蚊灭蚊以切断传播途径,是防治疟疾的重要策略与措施[2]。DDT滞留喷洒和溴氰菊酯浸泡蚊帐,在控制河南省疟疾发病中曾发挥了巨大作用[1],但随着化学杀虫剂的广泛使用,媒介按蚊的抗药性也随之增加。作

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