Abstract

Malaria endemicity is remaining in hard to reach and insurgent areas in Myanmar, where high density of primary and secondary vectors are available. Present study was determined the distribution, survivability and insecticides susceptibility status of vectors and non-vectors of malaria in Katinehtit village Kamamaung Township, Kayin State from July 2020 to June 2021. Mosquitoes were collected by Kanda net for animal bait and CDC light traps for indoor and outdoor collection from 18:00 to 00:06 hour. Survivability rate of An. dirus, An. minimu, An. aconitus, An. philippinensis, An. vagus and An. culicifacies were measured under the group of banana plants and susceptibility of collected mosquitoes were tested with WHO recommended insecteds. A total of 2207 mosquitoes consist of 13 Anopheles mosquito adult were collected by different collection methods by Cattle bate 1581(71.64%), Light trap indoor 174(7.88%), Light trap outdoor 297(13.46%), Morning Resting 43(1.95%) and Near the resting plant 112(5.07). Main vector An. dirus and An. minimus were mostly collected in Rainey season in high density and An. dirus was disappeared in hot season. Main vector An. minimus and secondary vector as An. philippinensis, An. culicifacies, An. maculatus, An. aconitus and nan vector An. barbirostris and An. hyrcanus were collected in all seasons. An. philippinensis, An. barbirostris and An. hyrcanus were abundantly collected. The highest survivability rate was found An. dirus and An. vagus for 8 days (10%) followed by An. culicifacies (20%), An. philippinensis (10%), An. minimus (20%) for 7 days and lowest was found An. aconitus for 6 days (20%). High density of An. dirus larvae were collected from rock pools and An. minimus was collected in sand pools, rice fields water, bed of Yonsalin creeks and water pools. All the collected mosquitoes were susceptible to Deltamethrin 0.05%, Permethrin 0.75% and Cyfuthris 0.15%. In conclusion, high density of main malaria vectors and secondary vectors were collected from Katinehtit village is a high risk area of malaria. Although all the collected main and secondary vectors were susceptible to WHO recommended insecticides. Therefore, Long Lasting Insecticide impregnated nets can be preventing the transmission of malaria in this area.

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