Detected on a duck farm in Merced County, California, it’s the first confirmed case of H5N9 in poultry in the US. Read more ...

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

H5N9 is a rare subtype of the influenza A virus that can cause highly pathogenic avian influenza (HPAI), also known as bird ...

As egg prices continue to soar across the country, there are new concerns about bird flu as a new strain was discovered at a ...