Publication: Seasonal abundance and potential of Japanese encephalitis virus infection in mosquitoes at the nesting colony of ardeid birds, Thailand
Issued Date
2013-01-01
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ISSN
22211691
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2-s2.0-84873831730
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Mahidol University
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SCOPUS
Bibliographic Citation
Asian Pacific Journal of Tropical Biomedicine. Vol.3, No.3 (2013), 207-210
Suggested Citation
Tanasak Changbunjong, Thekhawet Weluwanarak, Namaoy Taowan, Parut Suksai, Tatiyanuch Chamsai, Poonyapat Sedwisai Seasonal abundance and potential of Japanese encephalitis virus infection in mosquitoes at the nesting colony of ardeid birds, Thailand. Asian Pacific Journal of Tropical Biomedicine. Vol.3, No.3 (2013), 207-210. doi:10.1016/S2221-1691(13)60051-9 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/31385
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Title
Seasonal abundance and potential of Japanese encephalitis virus infection in mosquitoes at the nesting colony of ardeid birds, Thailand
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Abstract
Objective: To investigate the abundance and seasonal dynamics of mosquitoes, and to detect Japanese encephalitis virus (JEV) in these mosquitoes at the nesting colony of ardeid birds. Methods: Mosquitoes were collected bimonthly from July 2009 to May 2010 by Centers for Disease Control. Light traps and dry ice, as a source of CO<inf>2</inf>, were employed to attract mosquitoes. Mosquitoes were first identified, pooled into groups of upto 50 mosquitoes by species, and tested for JEV infection by viral isolation and reverse transcriptase polymerase chain reaction. Results: A total of 20 370 mosquitoes comprising 14 species in five genera were collected. The five most abundant mosquito species collected were Culex tritaeniorhynchus (95.46%), Culex vishnui (2.68%), Culex gelidus (0.72%), Anopheles peditaeniatus (0.58%) and Culex quinquefasciatus (0.22%). Mosquito peak densities were observed in July. All of 416 mosquito pools were negative for JEV. Conclusions: This study provides new information about mosquito species and status of JEV infection in mosquitoes in Thailand. Further study should be done to continue a close survey for the presence of this virus in the ardeid birds. © 2013 Asian Pacific Tropical Biomedical Magazine.