Abstract
Abstract : Avian influenza viruses (AIV) have been isolated from a wide range of domestic and wild birds. Wildbirds, predominantly ducks, geese and gulls form the reservoir of AIV in nature. The viruses in wild bird populationsare a potential source of widespread infections in poultry. Active surveillance for AIV infection provides informationregarding AIV distribution, and global AIV surveillance can play a key role in the early recognition of highly pathogenicavian influenza (HPAI). Since 2003 in Korea, there have been four H5N1 HPAI outbreaks caused by clade 2.5, 2.2and 2.3.2. Therefore, improvement of AIV surveillance strategy is required to detect HPAI viruses effectively. Thisarticle deals with the major events establishing the role of wild birds in the natural history of influenza in Korea.We highlighted the need for continuous surveillance in wild birds and characterization of these viruses to understandAIV epidemiology and host ecology in Korea.Keywords : avian influenza, epidemiology, poultry, surveillance, wild bird
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