Habitat productivity and pyrethroid susceptibility status of Aedes aegypti mosquitoes in Dar es Salaam,Tanzania

作     者：Leah Mathias Vito Baraka Anitha Philbert Ester Innocent Filbert Francis Gamba N.kwengulila Eliningaya J.Kweka 

作者机构：Department of Zoology and Wildlife ConservationCollege of Natural and Applied SciencesUniversity of Dar es SalaamP.O.Box 35165Dar es SalaamTanzania National Institute for Medical ResearchTanga Medical Research CentreP.O.Box 5004Tanga UrbanTangaTanzania Global Health InstituteUniversity of AntwerpGouverneur KinsbergencentrumDoornstraat 331B-2610WilrijkBelgium Mkwawa University College of EducationPrivate BagIringaTanzania Institute of Traditional MedicineMuhimbili University of Health and Allied SciencesP.O.Box 65001Dar es SalaamTanzania Department of Medical Parasitology and EntomologyCatholic University of Health and Allied SciencesP.O.Box 1464MwanzaTanzania Division of Livestock and Human Diseases Vector ControlTropical Pesticides Research InstituteNgaramtoniOff Nairobi RoadP.O.Box 3024ArushaTanzania 

出 版 物：《Infectious Diseases of Poverty》 (贫困所致传染病（英文）)

年 卷 期：2017年第6卷第1期

页      面：921-930页

核心收录：

学科分类：1004[医学-公共卫生与预防医学(可授医学、理学学位)] 1002[医学-临床医学] 1001[医学-基础医学(可授医学、理学学位)] 100401[医学-流行病与卫生统计学] 10[医学] 

基　　金：This study had some financial support from LM’s and VB’s families.Some support was also provided by the Institute of Traditional Medicine at Muhimbili University College of Health,and other materials were funded through the Tanzania Commission for Science and Technology(COSTECH) National Research Foundation(NRF)(grant no.TZ-RSA/JRP/RG.2013.08) 

主　　题：Culicidae Aedes aegypti Abundance Productivity Pyrethroid Knockdown effect Dar es Salaam Tanzania 

摘      要：Background:Aedes aegypti(Diptera:Culicidae)is the main vector of the dengue virus *** vector control is mainly based on reducing the vector population through interventions,which target potential breeding ***,in Tanzania,little is known about this vector’s habitat productivity and insecticide susceptibility status to support evidence-based implementation of control *** present study aimed at assessing the productivity and susceptibility status of *** mosquitoes to pyrethroid-based insecticides in Dar es Salaam,***:An entomological assessment was conducted between January and July 2015 in six randomly selected wards in Dar es Salaam,*** productivity was determined by the number of female adult *** mosquitoes emerged per square *** susceptibility status of adult *** females after exposure to 0.05%deltamethrin,0.75%permethrin and 0.05%lambda-cyhalothrin was evaluated using the standard WHO *** rates were recorded after 24 h exposure and the knockdown effect was recorded at the time points of 10,15,20,30,40,50 and 60 min to calculate the median knockdown times(KDT50 and KDT95).Results:The results suggest that disposed tyres had the highest productivity,while water storage tanks had the lowest productivity among the breeding habitats Of *** *** sites demonstrated reduced susceptibility to deltamethrin(0.05%)within 24 h post exposure,with mortalities ranging from 86.3±1.9(mean±SD)to 96.8±0.9(mean±SD).The lowest and highest susceptibilities were recorded in Mikocheni and Sinza wards,***,all sites demonstrated reduced susceptibility permethrin(0.75%)ranging from 83.1±2.1%(mean±SD)to 96.2±0.9%(mean±SD),in Kipawa and Sinza,*** low mortality rates were observed in relation to lambda-cyhalothrin(0.05%)at all sites,ranging from 83.1±0.7(mean±SD)to 86.3±1.4(mean±SD).The median KDT_(50)for deltamethrin,permethrin and lambda-cyhalo