Most of the bird flu cases reported so far in the U.S. have belonged to an influenza subtype known as HPAI H5N1. The newly ...

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

Both H5N9 and H5N1 were detected at the duck farm in Merced County, according to tests conducted by the US Department of ...

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

The first confirmed case of H5N9 bird flu in the United States has been identified in Merced County, California, and control ...

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

The California duck farm's strain of H5N9 is different from those earlier cases because this time it is closely related to a ...

The first case of H5N9 bird flu strain in the US has been identified in Merced County. This strain is different from the ...

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.

Bird flu infections around the U.S. have forced mass cullings and resulted in the deaths of zoo animals and pets ...