Nearly 119,000 birds have been culled at a farm in California after a bird flu called H5N9 was detected among the poultry.

While the H5N1 bird flu keep spreading, the first reported H5N9 outbreak in the United States has been identified on a duck ...

Experts stressed that the new strain did not itself appear to be an immediate human threat. But the rise of a new strain is troubling and points to the risk of a viral phenomenon known as ...

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.

A new strain of bird flu, H5N9, has been detected for the first time in the United States, raising concerns about how it ...

A California duck farm has culled thousands of birds as the virus seems to be trading genetics with other viruses ...

First U.S. detection of virulent H5N9 strain, at a California duck farm, draws scrutiny as evidence of genetic reassortment ...

The finding at a California duck farm is raising alarms among public health experts that bird flu could further mutate into ...

A newly identified strain of bird flu, H5N9, discovered at a California duck farm, has prompted concerns about the possibility of a larger outbreak, The Washington Post reported Jan. 29. Health ...

Highly pathogenic avian influenza H5N9 has been identified in U.S. poultry for the first time, after outbreak at a commercial ...