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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Rabalski, L., Milewska, A., Pohlmann, A., Gackowska, K., Lepionka, T., Szczepaniak, K., … Pyrc, K. (2023). Emergence and potential transmission route of avian influenza A (H5N1) virus in domestic cats in Poland, June 2023. Eurosurveillance, 28(31). https://doi.org/10.2807/1560-7917.ES.2023.28.31.2300390
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