The first confirmed case of the rare H5N9 bird flu has been reported in the U.S.
The virus was confirmed in a commercial duck farm in Merced County, California, according to the World Organization for Animal Health.
The first confirmed case of the rare H5N9 bird flu has been reported in the U.S.
The virus was confirmed in a commercial duck farm in Merced County, California, according to the World Organization for Animal Health.