CDC officials say medical professionals are seeing more patients whose illness cannot be traced back to an infected animal or ...

The U.S. Centers for Disease Control and Prevention is urging health care workers to accelerate bird flu testing for patients ...

The newly reported H5N9 strain was found Monday at a duck farm in Merced County, California, according to the World ...

The Centers for Disease Control and Prevention says hospitals treating people for the flu should test them for avian ...

The Centers for Disease Control and Prevention today released an advisory recommending clinicians expedite subtyping of type ...

Avian influenza A (H5N1) has mutated, so the symptoms of bird flu could change as more people get sick in 2025.

A new strain of a highly pathogenic and rare strain of bird flu has been reported on a duck farm in central California.

The first U.S. H5N9 outbreak has raised concerns as scientists warn of evolving bird flu risks—here's what you need to know about the symptoms.

Amid an ongoing outbreak of bird flu among poultry and dairy cattle across the ... Although the threat to the public remains ...

"The Chinese poultry lineage may have experienced more vaccine-driven selection compared to other lineages," the researchers ...

As more cases of bird flu emerge across the country, public health leaders in New York City are watching warily -- and making ...