2023年德阳市登革热媒介伊蚊监测结果分析  

Analysis of surveillance results of dengue vector Aedes in Deyang City in 2023

作　　者：周立晶[1] 刘泉[1] 尹燕平[1] 李劲松[2] ZHOU Lijing;LIU Quan;YIN Yanping;LI Jinsong(Deyang Center for Disease Control and Prevention,Deyang,Sichuan 618000,China;Luzhou Center for Disease Control and Prevention,Luzhou,Sichuan 646300,China)

机构地区：[1]德阳市疾病预防控制中心,四川德阳618000 [2]泸州市疾病预防控制中心,四川泸州646300

出　　处：《中华卫生杀虫药械》2024年第4期345-348,共4页Chinese Journal of Hygienic Insecticides and Equipments

摘　　要：目的掌握德阳市登革热媒介伊蚊的种类构成、密度季节消长、区域及生境分布等本底信息,为制定媒介伊蚊控制措施并开展登革热预警预测及风险评估提供科学依据。方法根据《全国病媒生物监测方案》及《四川省登革热防控技术方案(2023版)》等,分别采用布雷图指数法和双层叠帐法对2023年德阳市蚊幼孳生情况和成蚊密度开展监测。采用WPS 2016软件录入并整理数据,SPSS 25.0软件进行t检验、Mann-Whitney U检验或Kruskal-Wallis H检验、卡方检验相关分析。结果蚊幼孳生:共调查3600户,积水数8507个,其中阳性数为697个;BI值为19.36,室外高于室内(Z=3.61,P<0.01);CI为8.19%,室内外差异无统计学意义(χ^(2)=1.17,P=0.28);蚊幼孳生高峰在7—9月且布雷图指数到达高值≥20,废旧轮胎堆放地、废品站、工地等生境更易出现伊蚊孳生(均P<0.05)。成蚊密度:5—10月共捕获407只白纹伊蚊,平均密度为3.77只/(人·h);8月为密度峰值,达6.61只/(人·h)。结论2023年德阳市部分季节和生境的白纹伊蚊蚊幼孳生和成蚊密度较高,且在7—9月,有登革热疫情暴发风险,应针对性采取控制措施,防控登革热疫情发生与传播风险。Objective To understand the species composition,seasonal fluctuation of density,regional and habitat distribution of dengue vector Aedes in Deyang City,so as to provide scientific basis for formulating vector mosquito control measures and conduct dengue fever warning prediction and risk assessment.Methods According to the National Vector Surveillance Program and the Sichuan Dengue Prevention and Control Technical Plan(2023 edition),the Breteau index method and the double⁃layer overlapping net method were used to monitor the mosquito larval breeding situation and adult mosquito density in Deyang City in 2023.WPS 2016 software was used for data collection and analysis,and SPSS 25.0 software was used to conduct samples t⁃test,Mann⁃Whitney U test,Kruskal⁃Wallis H test and Chi⁃square test correlation analysis.Results In terms of mosquito larval breeding,a total of 3600 households were investigated,with 8507 water accumulations,of which 697 were positive;the BI value was 19.36,with outdoor areas having a higher BI than indoor areas(Z=3.61,P<0.01);the CI was 8.19%,with no significant difference between indoor and outdoor areas(χ^(2)=1.17,P=0.28).The peak of mosquito larval breeding occurred from July to September,with the Breteau Index reaching a high value of≥20.Habitats such as scrap tire dumps,waste stations,and construction sites were more prone to mosquito breeding(all P<0.05).In terms of adult mosquito density,407 Aedes albopictus were captured from May to October,with an average density of 3.77 mosquitoes per trap·hour;August had the highest density,reaching 6.61 mosquitoes per trap·hour.Conclusion In 2023,Aedes albopictus larval breeding and adult mosquito density were high in some seasons and habitats in Deyang City,and there was a risk of dengue outbreaks from July to September.Targeted control measures should be taken to prevent and control the occurrence and transmission of dengue fever.

关 键 词：登革热 伊蚊密度 季节消长 监测 

分 类 号：R384[医药卫生—医学寄生虫学]