Avian Flu 2024. However, since february 2022, the united states has been experiencing an outbreak of a highly pathogenic avian influenza (hpai) a(h5n1) strain in both domestic and wild birds,. Four of these cases were associated with exposure.

Bird flu, also called avian influenza, is caused by influenza type a virus infections in bird species. Since april 2024, 13 human cases of avian influenza a (h5) infection have been reported in the united states.