MERCED COUNTY, Calif. (KSEE/KGPE) – The country’s first case of H5N9 bird flu has been identified in Merced County, California, officials say. This H5N9 strain, which was identified earlier ...

A recent bird flu outbreak at a California duck farm has raised concerns, with the highly pathogenic strain H5N9 discovered among sick birds. This incident, reported by U.S. authorities through ...

The World Organization for Animal Health said in a Jan. 27 notification that the H5N9 strain of avian bird flu has been detected for the first time at a duck farm in Merced County, California.

Health officials also detected a more common H5N1 strain of bird flu on the same farm which is located in Merced County, California. "This is the first confirmed case of HPAI H5N9 in poultry in th ...

A strain of bird flu never seen before in the United States has been detected among poultry at a California farm. The virus, called highly pathogenic H5N9, is a type of avian influenza ...

First verified U.S. case of H5N9: New strain of bird flu found in California: Current status in maps The D1.1 genotype was prevalent in wild birds and some mammals in North America last fall and ...

H5N9, was found in California. These developments are precisely what many public health officials have been most concerned about as it means that bird flu is transforming in a way that could allow ...