Avian Bird Flu 2024. The h5n1 bird flu has been spreading widely among wild birds, poultry, cows and a. H5n1 is a type of influenza virus that causes a highly infectious, severe respiratory disease in birds called avian influenza (or bird flu).

Direct or indirect contact with infected animals. Bird flu, also called avian influenza, is caused by influenza type a virus infections in bird species.