A single mutation in the H5N1 strain of avian influenza that is infecting cattle in the US could make it more likely to infect humans, according to a new scientific paper.

Both swine and avian influenza are strains of influenza A. Just as swine flu strains tend to infect pigs, avian flu strains ...

The H5N1 avian influenza virus has infected birds and mammals around the world. As of June 2025, 70 people have been infected ...

Long Island’s last commercial duck farm is rebuilding after a bird flu outbreak forced the destruction of its entire ...

The person was over the age of 65 and had underlying medical conditions. They were hospitalized last month with the U.S.'s first severe bird flu case.