In total, 183,602 female culicine mosquitoes were captured by Mosquito Magnet, black light, and New Jersey light traps, and manual aspiration of resting blood-fed mosquitoes, in the Republic of Korea from 2008 to 2011. Culicine mosquitoes were identified to species, placed in pools of up to 30 mosquitoes each, and screened for flavivirus RNA by using an SYBR green I-based reverse transcription-polymerase chain reaction assay. Thirty-two of the 8,199 pools assayed were positive by quantitative polymerase chain reaction for Chaoyang virus (CHAOV), an insect-specific virus [26 Aedes vexans nipponii Theobald, 3 Culex pipiens L., 1 Aedes albopictus (Skuse), 1 Aedes bekkui Mogi, and 1 Armigeres subalbatus (Coquillett)]. The maximum likelihood estimations (estimated number of virus-positive mosquitoes/1,000 mosquitoes) for Ae. bekkui, Ae. albopictus, Ar. subalbatus, Ae. vexans nipponii, and Cx. pipiens positive for CHAOV were 5.37,3.29,0.77,0.27, and 0.26, respectively. CHAOV is an insect-specific virus, and there is currently no evidence to suggest a role in animal or human disease.
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1 March 2014
Distribution and Mosquito Hosts of Chaoyang Virus, a Newly Reported Flavivirus from the Republic of Korea, 2008–2011
Ratree Takhampunya,
Heung Chul Kim,
Bousaraporn Tippayachai,
Dong-Kyu Lee,
Won-Ja Lee,
Sung-Tae Chong,
Myung Soon Kim,
John S. Lee,
Terry A. Klein
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Journal of Medical Entomology
Vol. 51 • No. 2
March 2014
Vol. 51 • No. 2
March 2014
Aedes vexans nipponii
Chaoyang virus
insect-specific flavivirus
Republic of Korea