Journal
JOURNAL OF MEDICAL ENTOMOLOGY
Volume 51, Issue 2, Pages 464-474Publisher
OXFORD UNIV PRESS INC
DOI: 10.1603/ME13033
Keywords
insect-specific flavivirus; Chaoyang virus; Aedes vexans nipponii; Republic of Korea
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Funding
- Armed Forces Health Surveillance Center, Global Emerging Infections Surveillance and Response System (AFHSCDGEIS)
- National Center for Medical Intelligence
- Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Osong, Chungbuk Province, ROK
- AFRIMS
- U. S. Army Public Health Command Region-Pacific, Camp Zama, Japan
- Medical Brigade, U. S. Army Garrison, Yongsan, Seoul, Korea
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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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