Isolation of clade 2.3.4.4b A(H5N8), a highly pathogenic avian influenza virus, from a worker during an outbreak on a poultry farm, Russia, December 2020.

Olga G Pyankova,Ivan M Susloparov, Anastasia A Moiseeva,Natalia P Kolosova,Galina S Onkhonova, Aleksey V Danilenko,Elena V Vakalova, Gennady L Shendo, Natalia N Nekeshina, Lyudmila N Noskova, Julia V Demina, Natalia V Frolova,Elena V Gavrilova,Rinat A Maksyutov, Aleksandr B Ryzhikov

Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin（2021）

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摘要

This study presents the isolation of influenza A(H5N8) virus clade 2.3.4.4b from a poultry worker during an outbreak of highly pathogenic avian influenza A(H5N8) among chickens at a poultry farm in Astrakhan, Russia in December 2020. Nasopharyngeal swabs collected from seven poultry workers were positive for influenza A(H5N8), as confirmed by RT-PCR and sequencing. The influenza A(H5N8) virus was isolated from one of the human specimens and characterised. Sporadic human influenza A(H5)2.3.4.4. infections represent a possible concern for public health.

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关键词

Clade 2.3.4.4,H5N8,HPAIV,avian influenza virus,human influenza,phylogenetic,surveillance

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