A person in Louisiana who was hospitalized with a severe case of bird flu has died. The hospitalization, first announced Dec. 13, marked the first severe case of H5N1 bird flu in the United States. H5N1 is a subtype of bird flu that's been circulating among wild birds and poultry in the U.

Louisiana health authorities on Monday reported the first human death in the United States linked to bird flu, while noting the patient had underlying medical conditions and that general risks to the public remained "low.

A person in Louisiana who became severely ill with a bird flu virus known as H5N1 in December has passed away from the infection, marking the first known bird flu death in the US