Abstract: Objective To observe the variation trends of mosquito and oviposition positive index（MOI） and landing index（LI）,compare their correlation and consistency of risk grade assessment under different habitats and periods during the surveillance of Aedes albopictus. Methods Surveillance by mosquito-ovitrap was conducted at 15 street and town monitoring sites in Songjiang District of Shanghai City from June to September 2021,while human landing catch was used 7 days before the laying of mosquito-ovitrap（LI_7d-before）,on the same day（LI_day） and 7 days after the collection of mosquito-ovitrap（LI_7d-after） to calculate MOI and LI_7d-before,LI_day,LI_7d-after. Spearman correlation was used for correlation analysis,and Kappa test was used for risk assessment consistency evaluation between MOI and LI and gray correlation degree analysis for their correlation degree with temperature,humidity and wind speed. Results From June to September in Songjiang District,both MOI and LI increased first and then decreased. MOI reached the highest value of 19.46 in August,and average LI reached the highest value of 3.51 in July. The densities of Aedes albopictus in the tire gathering place and parks were higher than other habitats,and those in schools and hospitals were lower. Spearman correlation coefficients of MOI and LI_7d-before,LI_day,LI_7d-after were 0.393,0.396 and 0.342,respectively,with statistical significance（all P<0.05）,Kappa values were -0.084,0.012 and -0.075（all P>0.05）. The grey correlation degree of MOI with temperature,humidity and wind speed was 0.784,0.771 and 0.751,which of LIday was 0.793,0.785 and 0.774. Conclusion There was a certain correlation between MOI and LI,and both indexes were closely correlated with major meteorological factors. While there was no consistency in the assessment of dengue risk grade. Compared with LI,MOI was more sensitive.

Key words: Aedes albopictus, Mosquito and oviposition positive index, Landing index, Correlation, Consistency