Highly pathogenic avian influenza virus (H5N5) detected in an Atlantic walrus (Odobenus rosmarus rosmarus) in the Svalbard Archipelago, Norway, 2023

We present the first documented case of highly pathogenic avian influenza virus (HPAIV) subtype H5N5 in an Atlantic walrus (Odobenus rosmarus rosmarus). The animal was found dead in Svalbard, Norway, in 2023. Sequence analysis revealed the highest genetic similarity with virus isolates from differen...

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Bibliographic Details
Published in:Emerging Microbes & Infections
Main Authors: Postel, Alexander, Gremmel, Nele, Lydersen, Christian, Kovacs, Kit M., Schick, Luca A., Siebert, Ursula, Nymo, Ingebjørg H., Becher, Paul
Format: Article in Journal/Newspaper
Language:English
Published: 2025
Subjects:
article
Hochschulbibliographie allgemein
Verzeichnis wissenschaftlicher Veröffentlichungen
ddc:630
2024
Animals
Walruses
Influenza A virus
Orthomyxoviridae Infections
Phylogeny
Norway
Svalbard
Influenza in Birds
Infection
Virus
Arctic
Highly pathogenic avian influenza
Walrus
Svalbard Archipelago
Odobenus rosmarus
walrus*
Online Access:https://doi.org/10.1080/22221751.2025.2456146
https://elib.tiho-hannover.de/receive/tiho_mods_00012843
https://elib.tiho-hannover.de/servlets/MCRFileNodeServlet/tiho_derivate_00003364/Highly%20pathogenic%20avian%20influenza%20virus%20H5N5%20detected%20in%20an%20Atlantic%20walrus%20Odobenus%20rosmarus%20rosmarus%20in%20the%20Svalbard%20Archipelago%20Norway%202023.pdf
https://europepmc.org/articles/PMC11795765
https://www.tandfonline.com/doi/full/10.1080/22221751.2025.2456146
Description
Summary:We present the first documented case of highly pathogenic avian influenza virus (HPAIV) subtype H5N5 in an Atlantic walrus (Odobenus rosmarus rosmarus). The animal was found dead in Svalbard, Norway, in 2023. Sequence analysis revealed the highest genetic similarity with virus isolates from different avian hosts.

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