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H5N1 Clade 2.3.4.4b Infections in Domestic Cats During an Avian Influenza Outbreak in Italy: Implications for One Health Surveillance

G. D’Annunzio Ana Moreno Giovanni Tosi Patrizia Bassi Alessio Bortolami G. Diegoli A. Drago A. Fusaro L. Gelmini L. Gibelli T. Lazzarotto Elisabetta Lilliu L. L. Piccolomini Andrea Maroni E. Martini Giulio Matteo Giovanna Mattei L. V. Muscatello I. Monne Elisa Palumbo Giorgia Prezzemolo Valentina Ravaioli D. Resi L. Ruocco M. Sabatino Enrico Savegnago Marco Sordilli C. Terregino C. Tolini G. Merialdi
Sep 2026 · Influenza and Other Respiratory Viruses · Vol 20 · 0 citations · 35 references
Medicine

Abstract

H5Nx goose/Guangdong (Gs/GD) lineage highly pathogenic avian influenza (HPAI) viruses pose a significant public health threat due to their global spread, mutation accumulation, and expanding host range. The descendant clade 2.3.4.4b has been causing widespread infections in birds and increasing spillover events in mammals.

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