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Avian Influenza

Detections of HPAI in U.S. Mammals

There are many species that are potentially susceptible to highly pathogenic avian influenza (HPAI). In addition to birds and poultry, H5N1 viruses have been detected in some mammals (see list below). Infection may cause illness, including severe disease and death in some cases.

HPAI Detections in Mammals

Data as of July 16, 2024