World Journal of
Pharmaceutical and Life Sciences

SEASONAL DISTRIBUTION OF AEDES LARVAE IN VARIOUS WATER STORAGE CONTAINERS IN LAYMYETHNAR TOWNSHIP, HINTHADA DISTRICT, AYEYAWADY REGION

Min Zaw Latt, Dr. Maung Maung Mya* and Thazin Hlaing

ABSTRACT

Seasonal study was conducted in Lal Tan Ngal village, Laymyethnar Township during the study period from October 2017 to September 2018. All potential breeding sites were examined in order to carry out the systematic study. Larval positive containers of different container categories as major, minor, miscellaneous containers and types were recorded. Key containers and Key premises were recorded and compared with each other. In wet season (2017), cool season (2018) and dry season (2018), 54%, 62% and 44% of households were found Aedes larval positivity. Season larval positivity in major, minor and miscellaneous containers were found 42.64%, 6.77%, 8.57% in wet; 18.67%, 75%, 23.76% in cool and 62.5%, 36.36%, 10,14% in dry seasons respectively. Key containers and Key premises in village were found 41.43%, 18% in wet; 24.07%, 16% in cool and 8.57%, 2% in dry respectively. The larval indices such as House Index (HI), Container Index (CI) and Breteau Index (BI) were observed highest in cool season 62, 31.03, 108 than 54, 21.08, 140 in wet and 44, 19.13, 70 in dry season. In Lal Tan Ngal village, pupal indices in positive containers and percentage of Key containers and Key premises were significantly declined from wet (2017) to dry (2018). Laval positivity was high in major (concrete jars, big bago jars), minor (small bago jars, earthen pots) and miscellaneous (broken bago jars and earthen pots, bamboo stamps) containers. It will become high-risk area of DF and DHF due to high infestation level of Aedes larvae. Therefore, proper control methods are needed to clean out the Aedes larvae in water storage containers and cover with lids completely the various water storage containers to reduce transmission of DF and DHF in children.

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