An ecological survey of dengue vector mosquitos in central Lao PDR.
An ecological survey of dengue vector mosquitos was carried out in June 2000 in central Lao PDR. Two areas in Khammouane Province, Nongbok and Thakhek, were selected for the survey. Of the 7 mosquito species identified, Aedes aegypti was dominant in both study areas. The container index for Ae. aegypti in Nongbok was 51.8% and was significantly higher than that of Thakhek (40.2%); moreover, significant differences between the study areas were found with records to containers and to the conditions surrounding the houses. The key containers in Nongbok were water jars, whereas drums or small or discarded containers had the highest occurrence rate of Ae. aegypti in Thakhek. Mesocyclops aspericornis was found in large water jars and cement water tanks; no Aedes larvae were found at these sites. Strategy to control dengue vectors in the study areas was discussed.
Department of Medical Entomology, Institute of Tropical Medicine, Nagasaki University, Sakamoto, Japan
Yoshio
Y
Tsuda
Jun
J
Kobayashi
Simone
S
Nambanya
Ichiro
I
Miyagi
Takako
T
Toma
Samlane
S
Phompida
Kemphavanh
K
Manivang
D000330:Aedes / Q000821:virology*; D000818:Animals; D003625:Data Collection; D003715:Dengue / Q000453:epidemiology* / Q000635:transmission; D006801:Humans; D007303:Insect Vectors; D007812:Laos / Q000453:epidemiology