lnvestigation of Dangerous Degree of Dengue and Breeding Habit of Vector in Shanghai

Objective:To grasp the dangerous degree of dengue,the breeding habit and distribution of vector in Shanghai.Methods:Collecting larva in different areas or containers and artifical luring .Results:(1).There were aedes albopicuts only in shanghai;(2)Aedes albopictus larva was captured from April to November.The larva peak was from June to September.(3)From June to September,the aedes albopictus container index(CI) was 8.59;the house index(H) was 8.90;the breteam index(BI) was 12.19;the larval density index(LD) was 2.16.The biting rate index(BRI) was 8.3 per 30 minutes.There was a dangerous potential of dengue to spread in shanghai.(4)The aedes albopictus larva distribution was extensive,mainly in tyre,jar,vat and the containers of flower or house.(5)The rate of positive was significantly different (P0.01) among the various unities,areas and houses.Conclusion:The dengue vector population was at dangerous degree in Shanghai.The monitoring and vector control work must be enforced .It was very necessary to formulate the control measure for aedes albopictus.