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Volume 31, Number 8—August 2025

Research

Transmission Dynamics of Highly Pathogenic Avian Influenza A(H5N1) and A(H5N6) Viruses in Wild Birds, South Korea, 2023–2024

Ye-Ram Seo1, Andrew Y. Cho1, Dong-Ju Kim1, Young-Jae Si, Hye-sung Jeong, Su-woong Lee, Chang-Seon Song, and Dong-Hun LeeComments to Author 
Author affiliation: Konkuk University, Seoul, South Korea (Y.-R. Seo, A.Y. Cho, C.-S. Song, D.-H. Lee); National Institute of Wildlife Disease Control and Prevention, Gwangju, South Korea (D.-J. Kim, Y.-J. Si, H.-S. Jeong, S.-W Lee)

Main Article

Table

Detailed information on highly pathogenic avian influenza A(H5N1) and A(H5N6) virus isolates from wild birds during 2023–2024 outbreak, in chronological order, South Korea

No.† Collection date Sample ID Region Sample type Host species Subtype Isolate ID
1 2023 Nov 27 23WS022-22 Jeollabuk-do Captured Eurasian wigeon H5N1 EPI_ISL_18717640
2 2023 Dec 1 23WC066 Gyeongsangbuk-do Carcass Whooper swan H5N1 EPI_ISL_20051148
3 2023 Dec 2 23WC068 Gyeongsangbuk-do Carcass Whooper swan H5N1 EPI_ISL_20051147
4 2023 Dec 4 23WC069 Gyeongsangbuk-do Carcass Whooper swan H5N1 EPI_ISL_20051146
7 2023 Dec 8 23WC075 Gyeongsangbuk-do Carcass Whooper swan H5N6 EPI_ISL_18853568
9 2023 Dec 19 23WF435 Jeollabuk-do Feces Mandarin duck H5N6 EPI_ISL_18853569
10 2023 Dec 21 23WC111 Gyeongsangbuk-do Carcass Bean goose H5N6 EPI_ISL_18853650
11 2023 Dec 22 23WC116 Gyeongsangbuk-do Carcass Whooper swan H5N6 EPI_ISL_18853651
12 2023 Dec 22 23WC117 Gyeongsangbuk-do Carcass Whooper swan H5N1 EPI_ISL_20051145
13 2024 Jan 10 23WC160 Gyeongsangnam-do Carcass Bean goose H5N6 EPI_ISL_20051144
14 2024 Jan 10 23WS033-1 Gwang-ju Feces Mandarin duck H5N6 EPI_ISL_20051143
16 2024 Jan 26 23WC195 Jeju island Carcass Northern shoveler H5N1 EPI_ISL_20051142
17 2024 Jan 30 23WC215 Jeju island Carcass Gadwall H5N1 EPI_ISL_20051141
18 2024 Feb 4 23WC224 Gyeongsangbuk-do Carcass Peregrine falcon H5N1 EPI_ISL_20051140
19 2024 Feb 6 23WC229 Gyeongsangnam-do Carcass Great cormorant H5N6 EPI_ISL_20051139

*ID, identification. †Indicates the order of occurrence among the 19 confirmed cases of highly pathogenic avian influenza A(H5N1) clade 2.3.4.4b identified in wild birds during November 2023–February 2024, of which 15 viruses were detected and isolated by National Institute of Wildlife Disease Control and Prevention.

Main Article

1These first authors contributed equally to this article.

Page created: June 23, 2025
Page updated: July 09, 2025
Page reviewed: July 09, 2025
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