Analysis of vectors surveillance in Bao'an District,Shenzhen from 2018 to 2023
WANG Meng
HUANG Kunchang
HUANG Zhenyu
LI Yuan
ZHU Yi
Abstract：Objective To understand the population composition,density,distribution and seasonal fluctuation of major vectors in Bao'an District,Shenzhen from 2018 to 2023.Methods According to the National Vector Biological Monitoring Programme and Shenzhen Vector Biological Monitoring Implementation Programme,monitoring sites were set up to investigate the species and densities of rodents,mosquitoes,flies and cockroaches using the cage trapping method,mosquito trapping lamp method,cage trapping method and sticky trapping method,respectively.Results From 2018 to 2023,the densities of mosquito were 2.39,3.28,2.89,2.86,2.32 and 3.26 mosquitoes/(lamp·h),with the highest in schools/industrial zones,and Culex pipiensquinquefasciatus accounted for 98.46%of the total number of captures,with the first peak in April-May and the sub-peak in November,and there was a statistical difference in mosquito species composition ratios between years(χ2=45.313,P＜0.001).The densities of fly were 1.25,0.60,0.36,0.44,0.35 and 0.42 flies/cage,respectively,the density of Musca domestica reached 0.78 flies/cage,accounting for 93.15%of the total number of captures,with the highest density of 1.04 flies/cage in the farmers'market.The densities of rodent were 2.05%,2.80%,2.92%,2.27%,1.75%and 1.54%,respectively,with Rattus norvegicus accounting for 99.68%of the total number of captures,and rodent activity was observed throughout the year.The densities of cockroach were 1.98,2.06,2.02,1.44,1.55 and 1.60 cockroaches per sheet,with a statistical difference in total cockroach density between years(F=5.863,P＜0.001).Blattella germanica accounted for 99.56%of the total number of captures,and the highest density and infestation rate of cockroach(2.67 cockroaches per sheet,34.21%,respectively)were in the farmers'market.Conclusion The densities of all major vectors in Bao'an District were at a low level from 2018 to 2023,and the control of vectors was effective.Cx.Pipiensquinquefasciatus,M.domestica,R.norvegicus,and B.germanica are absolute dominant species in Bao'an District,and the risk of related vector borne diseases is high.
Keywords：vectorpopulation compositiondensityseasonal fluctuationsurveillance
Publication Date：2025-04-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 171-175 )