As more cases of bird flu are reported across species and locations, states across the country are taking precautionary ...

Doctors say the case of a teen left in critical condition shows H5N1 "can cause severe human illness." Mutations in the virus are deepening concerns about the spread of H5N1.

In coming years, the bird flu may cost billions of dollars more in expenses and losses. Worse, the outbreak poses the threat ...

So far, the H5N1 virus isn't transmitted between people - but the CDC has found a mutation in a human case "concerning" ...

The patient in Louisiana who was hospitalized with severe bird flu illness was found to have a mutated version of the virus.

Each week some revelation about bird flu seems to flutter through the news cycle. Here's what the latest research is saying ...

The U.S. isn't fully capturing spread in pets like cats, compared to surveillance for livestock and people, said the study’s senior author, Suresh Kuchipudi, a professor and chair of infectious ...

The virus in the first severe human bird flu case in the U.S. was found to have mutated. Follow Newsweek's live blog for ...

Influenza A subtype H5N1, or bird flu has been infecting dairy cattle in several US states and found in horses in Mongolia.