Breeding Preference of Aedes Mosquitoes According To the Position of Water Storage Containers in Thanlyin Township, Yangon Region, Myanmar

Mya MM, Swe TT, Htun TM, Thew TL and Nyunt NOO

Published on: 2021-10-10

Abstract

Aedes mosquitoes are the major vector of dengue fever, dengue hemorrhagic fever and serious public health problem mainly in children population, prevention of DHF outbreaks in endemic areas is based on long term anti mosquito control measures. Breeding preferences of Aedes mosquitoes on the position of water storage containers as covered, uncovered, half covered, shade and open areas were measured in Amuehtan Ward, Thanlyin Township, Yangon from July, 2018 to June, 2019 using non-intervention descriptive field investigation method. Larval survey in the selected areas was carried out according to WHO. Aedes larvae positivity in all kinds of water storage containers (major, minor and miscellaneous) were detected and recorded according to their position. Breeding preference on Aedes larvae of uncovered, covered and half covered containers and shade and open areas placed containers were recorded. Result revealed that uncover containers were found the highest positivity rates, 66.67% in major containers, 95.24% in minor containers and 100% in miscellaneous containers respectively. Open and shade areas placed containers were found the highest larval positively rate was found in open area placed containers (54.92%), of this 58.33% of major and 92.86% of miscellaneous containers (larval positive) were placed in open area and 76.20% of minor containers (larval positive) were placed in shade areas. In key containers, the highest positivity rate 87.50% was found in uncovers containers and 62.50% of the key containers were placed in shade area. In key premises, the highest positivity rate was found 78.05% in uncovers containers and 58.54% of the containers were placed in shade area. Key containers and Key premises houses were found highly positive in uncovered containers which were situated in shade areas. Therefore, study suggested that all the water storage containers need to proper covered and placed open areas to reduce Aedes larval density and adult population.