Serosurveillance for Japanese encephalitis virus in wild birds captured in Korea.
10.4142/jvs.2011.12.4.373
- Author:
Dong Kun YANG
1
;
Yoon I OH
;
Hye Ryoung KIM
;
Youn Jeong LEE
;
Oun Kyong MOON
;
Hachung YOON
;
Byounghan KIM
;
Kyung Woo LEE
;
Jae Young SONG
Author Information
1. Animal and Plant and Fisheries Quarantine and Inspection Agency, MIFAFF, Anyang 430-757, Korea. yangdk@korea.kr
- Publication Type:Original Article ; Research Support, Non-U.S. Gov't
- Keywords:
Japanese encephalitis virus;
serosurveillance;
wild bird
- MeSH:
Animal Migration;
Animals;
Animals, Wild;
Bird Diseases/*epidemiology/virology;
Birds;
Encephalitis Virus, Japanese/genetics/*isolation & purification;
Encephalitis, Japanese/blood/epidemiology/*veterinary/virology;
Genotype;
Hemagglutination Inhibition Tests;
Population Surveillance;
Republic of Korea/epidemiology;
Seroepidemiologic Studies
- From:Journal of Veterinary Science
2011;12(4):373-377
- CountryRepublic of Korea
- Language:English
-
Abstract:
Climate change induced by recent global warming may have a significant impact on vector-borne and zoonotic diseases. For example, the distribution of Japanese encephalitis virus (JEV) has expanded into new regions. We surveyed the levels of hemagglutination-inhibition (HI) antibodies against JEV (Family Flaviviridae, genus Flavivirus) in wild birds captured in Korea. Blood samples were collected from 1,316 wild birds including the following migratory birds: Oceanodroma castro (n = 4), Anas formosa (n = 7), Anas penelope (n = 20), Fulica atra (n = 30), Anas acuta (n = 89), Anas crecca (n = 154), Anas platyrhynchos (n = 214), Aix galericulata (n = 310), and Anas poecilorhyncha (n = 488). All were captured in 16 locations in several Korea provinces between April 2007 and December 2009. Out of the 1,316 serum samples tested, 1,141 (86.7%) were positive for JEV. Wild birds captured in 2009 had a higher seroprevalence of ant-JEV antibodies than those captured in 2007. Wild birds with an HI antibody titer of 1 : 1,280 or higher accounted for 21.2% (280/1,316) of the animals tested. These findings indicated that wild birds from the region examined in our study have been exposed to JEV and may pose a high risk for introducing a new JEV genotype into Korea.
