Los Angeles County health officials have identified three more cats with presumptive H5N1; the source of the virus has not yet determined, but experts suspect raw meat.

Among 61 people infected with bird flu in the U.S. this year, a Louisiana patient is the first to have "severe" disease

The CDC said the case does not change its overall assessment that the immediate risk to the public’s health from bird flu remains ‘low.’

The Wisconsin Department of Health Services​ announced Wednesday that it had detected presumptive positive human case of H5N1 in Barron County.

The ongoing bird flu outbreak in the U.S. just got a bit more concerning: a person in Louisiana has been hospitalized with the first severe case of infection with the H5N1 avian influenza virus in the U.