02/15/2025
Highly Pathogenic Avian Influenza (HPAI) Infections in Domestic Cats
Fourteen cases of Influenza A (HPAI H5N1) have been diagnosed in felines in Colorado since May 2024. Ten of these cases were in domestic cats, while four cases were in exotic big cats. Information detailing routes of exposure for affected cats can be found in CDPHE’s current guidance document for veterinarians. A complete list of U.S. mammal HPAI detections can be found on USDA’s website. Two of the most recent cases in domestic cats were indoor only cats that had exposure to raw poultry meat (chicken, turkey). While most confirmed cases in domestic cats have resulted in death, one cat in Colorado has survived the acute illness. A history of raw pet food consumption in this case prompted H5N1 testing in this cat.