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Genetic and antigenic characterization of H5 and H7 avian influenza viruses isolated from migratory waterfowl in Mongolia from 2017 to 2019

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Title: Genetic and antigenic characterization of H5 and H7 avian influenza viruses isolated from migratory waterfowl in Mongolia from 2017 to 2019
Authors: Ulaankhuu, Ankhanbaatar Browse this author
Bazarragchaa, Enkhbold Browse this author
Okamatsu, Masatoshi Browse this author
Hiono, Takahiro Browse this author
Bodisaikhan, Khishgee Browse this author
Amartuvshin, Tsolmon Browse this author
Tserenjav, Jargalsaikhan Browse this author
Urangoo, Tsogtbaatar Browse this author
Buyantogtokh, Khanui Browse this author
Matsuno, Keita Browse this author
Hattori, Takanari Browse this author
Kondoh, Tatsunari Browse this author
Sato, Masahiro Browse this author
Takadate, Yoshihiro Browse this author
Torii, Shiho Browse this author
Isono, Mao Browse this author
Okuya, Kosuke Browse this author
Saito, Takeshi Browse this author
Kasajima, Nodoka Browse this author
Kida, Yurie Browse this author
Maruyama, Junki Browse this author
Igarashi, Manabu Browse this author
Takada, Ayato Browse this author
Kida, Hiroshi Browse this author
Batchuluun, Damdinjav Browse this author
Sakoda, Yoshihiro Browse this author →KAKEN DB
Keywords: Avian influenza
Migratory waterfowl
Issue Date: 19-May-2020
Publisher: Springer
Journal Title: Virus Genes
Volume: 56
Issue: 4
Start Page: 472
End Page: 479
Publisher DOI: 10.1007/s11262-020-01764-2
Abstract: The circulation of highly pathogenic avian influenza viruses (HPAIVs) of various subtypes (e.g., H5N1, H5N6, H5N8, and H7N9) in poultry remains a global concern for animal and public health. Migratory waterfowls play important roles in the transmission of these viruses across countries. To monitor virus spread by wild birds, active surveillance for avian influenza in migratory waterfowl was conducted in Mongolia from 2015 to 2019. In total, 5000 fecal samples were collected from lakesides in central Mongolia, and 167 influenza A viruses were isolated. Two H5N3, four H7N3, and two H7N7 viruses were characterized in this study. The amino acid sequence at hemagglutinin (HA) cleavage site of those isolates suggested low pathogenicity in chickens. Phylogenetic analysis revealed that all H5 and H7 viruses were closely related to recent H5 and H7 low pathogenic avian influenza viruses (LPAIVs) isolated from wild birds in Asia and Europe. Antigenicity of H7Nx was similar to those of typical non-pathogenic avian influenza viruses (AIVs). While HPAIVs or A/Anhui/1/2013 (H7N9)-related LPAIVs were not detected in migratory waterfowl in Mongolia, sporadic introductions of AIVs including H5 and H7 viruses into Mongolia through the wild bird migration were identified. Thus, continued monitoring of H5 and H7 AIVs in both domestic and wild birds is needed for the early detection of HPAIVs spread into the country.
Rights: This is a post-peer-review, pre-copyedit version of an article published in Virus Genes. The final authenticated version is available online at:
Type: article (author version)
Appears in Collections:国際連携研究教育局 : GI-CoRE (Global Institution for Collaborative Research and Education : GI-CoRE) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 迫田 義博

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