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Emergence and potential transmission route of avian influenza A (H5N1) virus in domestic cats in Poland, June 2023
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View Affiliations Hide AffiliationsMaciej Grzybekmaciej.grzybek gumed.edu.pl; Krzysztof Pyrck.a.pyrc uj.edu.pl
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Citation style for this article: . Emergence and potential transmission route of avian influenza A (H5N1) virus in domestic cats in Poland, June 2023. Euro Surveill. 2023;28(31):pii=2300390. https://doi.org/10.2807/1560-7917.ES.2023.28.31.2300390 Received: 24 Jul 2023; Accepted: 03 Aug 2023
Abstract
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 infection source. To investigate possible infection routes, our group tested food samples from affected households. HPAI H5N1 virus was detected in one poultry meat sample.
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