2018—2020年武穴市疟疾媒介监测结果分析  

Analysis of malaria vector surveillance in Wuxue city from 2018 to 2020

作　　者：皮琦[1] 万伦[1] 钟林峰 甘泽洪 张华勋[1] 李凯杰[1] Pi Qi;WAN Lun;ZHONG Lin-feng;GAN Ze-hong;ZHANG Hua-xun;LI Kai-jie(Hubei Provincial Center for Disease Control and Prevention,Wuhan,Hubei 430079,China;不详)

机构地区：[1]湖北省疾病预防控制中心,湖北武汉430079 [2]武穴市疾病预防控制中心

出　　处：《应用预防医学》2022年第4期316-319,323,共5页Applied Preventive Medicine

基　　金：湖北省卫生计生委血吸虫病防治科研项目(WJ-2017X012)。

摘　　要：目的了解湖北省武穴市消除疟疾巩固阶段传疟媒介密度和种群现状,为防止输入性疟疾再传播提供媒介监测依据。方法选择省级监测点武穴市石佛寺镇,于2018—2020年的5~10月采用人帐诱法、居民清晨帐内捕蚊法和全通宵诱蚊灯法进行按蚊种群和密度监测,连续监测3年。结果2018—2020年,人帐诱法监测按蚊密度平均为6.14只/(人·h),密度高峰为2018年的8月上旬,平均密度为57.71只/(人·h),以及2019年和2020年的7月下旬,分别为34.13只/(人·h)和29.34只/(人·h);居民清晨帐内捕蚊法监测按蚊密度平均为0.31只/房和0.22只/人;全通宵诱蚊灯法监测,近人房处共捕获蚊虫1596只,经鉴定中华按蚊1367只,中华按蚊密度为50.63只/(灯·夜),近水田旁共捕获蚊虫4023只,经鉴定中华按蚊3874只,中华按蚊密度为143.48只/(灯·夜)。调查其他蚊种主要为三带喙库蚊和骚扰阿蚊。结论本次监测均未捕获嗜人按蚊,提示其作为传疟媒介的可能性较小;但中华按蚊密度依然较高,存在引起输入性疟疾继发二代病例的风险。建议武穴市继续开展蚊媒监测,做好预测和分析,防止输入性疟疾再传播。Objective To investigate the population and density of malaria-borne vectors in malaria elimination phase in Wuxue city,Hubei province,and to provide reference for vector monitoring to prevent the re-transmission of imported malaria.Methods The provincial monitoring site,Shifosi town,Wuxue city,was selected to monitor the population and density of Anopheles mosquitoes from May to October in 2018-2020.The method of trapping mosquitoes with human nets,the method of trapping mosquitoes in residents’nets in the early morning,and the method of all-night mosquito trapping lamps were adopted;the monitoring was continuous for 3 years.Results From 2018 to 2020,the average density of Anopheles mosquitoes monitored by the trapping with human nets method was 6.14/(person·h).The peak density was 57.7(person·h)in early August 2018,and 34.13(person·h)and 29.34(person·h)in late July 2019 and 2020,respectively.The densities of Anopheles mosquitoes monitored by mosquito trapping in the resident’s nets in the morning method were 0.31/room and 0.22/person on average.The result of all-night mosquito trapping lamp method indicated a total of 1596 mosquitoes were captured near the residential houses,1367 Anopheles mosquitos were identified,and the density of Anopheles mosquitos was 50.63/(light·night).A total of 4023 mosquitoes were captured near the paddy field,3874 Anopheles sinensis were identified,and the density of Anopheles sinensis was 143.48/(light·night).The other mosquito species investigated were Culex tritaeniorhynchus and Armigeres subalbatus.Conclusion This surveillance did not capture Anopheles anthropophagus,suggesting that it is less likely a malaria vector.However,the density of Anopheles sinensis is still high,and there is a risk of secondary cases of imported malaria.It is suggested that mosquito vector surveillance should be continued,practice prediction and analysis,and prevent the retransmission of imported malaria.

关 键 词：疟疾 按蚊 密度 监测 

分 类 号：R254.5[医药卫生—中医内科学]