Emergence and potential transmission route of avian influenza A (H5N1) virus in domestic cats in Poland, June 2023

Lukasz Rabalski,Aleksandra Milewska,Anne Pohlmann,Karolina Gackowskal, Tomasz Lepionka,Klaudiusz Szczepaniak,Agnieszka Swiatalska, Izabela Sieminska, Zbigniew Arent,Martin Beer,Marion Koopmanse,Maciej Grzybek,Krzysztof Pyrc

Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin（2023）

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摘要

In June 2023, a fatal disease outbreak in cats occurred in Poland. Most cases tested in Poland (29 of 47) were positive for highly pathogenic avian influenza (HPAI) A (H5N1) virus. Genetic analyses revealed clade 2.3.4.4b with point mutations indicative of initial mammalian hosts adaptations. Cat viral sequences were highly similar (n = 21), suggesting a potential common infec-tion source. To investigate possible infection routes, our group tested food samples from affected house-holds. HPAI H5N1 virus was detected in one poultry meat sample.

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influenza,domestic cats,virus,h5n1

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