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Naturally occurring highly pathogenic #avian #influenza virus #H5N1 clade 2.3.4.4b #infection in three domestic #cats in North #America during 2023, J Comp Pathol.: https://doi.org/10.1016/j.jcpa.2023.07.001 #epizootic #panzootic #HPAI #mammals #pandemic #zoonoses #research
''#Necropsy consistently revealed pulmonary #congestion and #oedema, and cerebrocortical malacia with #haemorrhage was also seen in the cat that survived for 10 days. On #histology, all cats had necrotizing #encephalitis and interstitial #pneumonia with pulmonary congestion, oedema, #vasculitis and vascular #thrombosis. One cat also had microscopic multifocal necrosis in the #liver, #pancreas and an adrenal gland.''