Highly pathogenic avian influenza A(H5N1) virus was detected in dead seals on Tyuleniy Island in eastern Russia, in the Sea of Okhotsk. Viruses isolated from dead northern fur seals belong to clade 2.3.4.4b and are closely related to viruses detected predominantly in the Russian Far East and Japan in 2022–2023.

中文翻译：

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2023 年俄罗斯海豹中高致病性禽流感 A(H5N1) 病毒分支 2.3.4.4b 感染

在俄罗斯东部鄂霍次克海秋列尼岛上的死海豹中检测到高致病性甲型禽流感（H5N1）病毒。从死亡的北方海狗身上分离出的病毒属于进化枝 2.3.4.4b，与 2022-2023 年主要在俄罗斯远东和日本检测到的病毒密切相关。