Study on the correlation and matching of five Aedes mosquito density surveillance methods
Objective To compare the correlation and corresponding relationship of 5 different Aedes mosquito surveillance methods,and to provide basis for the reasonable selection of surveillance method.Methods From August to October 2021,May to October 2022,the Breteau index method,mosq-ovitraph method,double mosquito net method,human-baited landing method and BG-Trap method were used to simultaneously collect Aedes mosquitoes in residential areas and parks in 55 sites of 6 streets in Longhua District,Shenzhen.Non-parametric test and ROC curve were used for statistical analysis.Results The surveillance data of Breteau index method was lower than that of mosq-ovitrap method,the difference was statistically significant(P＜0.000 1).The data of double mosquito net method was lower than mosq-ovitraph method,human-baited landing method and BG-Trap method,the differences were statistically significant(P＜0.000 1).No significant difference between the surveillance data of mosq-ovitraph method and human-baited landing method,BG-Trap(P=0.096,P=0.211).Under the existing evaluation indexes,some surveillance methods could find corresponding values,BI=5,corresponding to MOI=7.42,MOI=10,corresponding to BI=6.50.The trap index of double mosquito net method was 0.9(or 2),the index of human-baited landing method and BG-Trap method were 7.00 and 5.00 respectively.The trap index of double mosquito net method was 4 or 6,and the index of human-baited landing method and BG-Trap method were 7.00 and 9.00,or 11.00 and 9.00 respectively.Conclusion In the surveillance of adult Aedes mosquito in Shenzhen,different methods could be selected based on timeliness,accessibility,safety and objectivity.
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