Entomological study in the area of Phu-Namdam in Surat-Thani Province
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Abstract
This study is the entomological survey conducted in Moo 3 Thambol Prasong,
Ampure Thachana, Surat-Thani Province. The study site is the representative area of
filariasis Brugia malayi at swamp forest named “Phu-Namdum”. Mosquitoes were collected by human bait at outdoor from 06.00 pm-09.00 pm. in January, March, June, and April 2008.
The seven genus of mosquitoes were founded with low density levels. Four species of Mansonia spp., the vector of filariasis, are Ma.indiana, Ma. uniformis, Ma. bonnea,
and Ma. annulifera. Ma. indiana was found with highest density in the January (31.15 n/10 person-hour). The study did not find mosquitoes infected with B. malayi larva and indicated that areas around Phu-Namdum are no longer endemic for Brugia malayi infection but still vulnerable for Brugia malayi transmission due to the presence of vector species.
It is necessary that entomological study should be continued in this area. However, there is evidence of Culex spp. and Aedes spp. in this area suggesting the environmental change.
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