Bird Flu April 2024. Chickens stand in their cages at a farm in 2009,. The first cases of this h5n1 bird flu strain emerged in north america among wild migratory birds in late 2021 and soon spread to poultry farms.

Bird flu, also called avian flu or avian influenza, refers to infections caused by the avian influenza type a viruses. The first human case of h5n1 bird flu linked to an outbreak in dairy cows in the united states was reported on april 1, 2024, in texas.