Washington had nine instances of highly pathogenic avian influenza from mid-November through mid-December, though all of those were in backyard flocks and 290 birds were affected, according to USDA ...

One of six geese found dead in and around Heckscher Park in January is likely positive for highly pathogenic avian influenza ...

GRANT COUNTY, Wash. — The Grant County Health District (GCHD) says it has confirmed two separate households have tested positive for Bird Flu (avian influenza) within the past month. The two cases ...

Health officials in Washington state say they have identified the nation's first human case of bird flu since February, pending confirmatory testing. A Grays Harbor County, Washington, resident ...

H5N1 bird flu, in the U.S. since 2014, has spread from birds to farm animals, humans, and recently dairy cows.

Scientists have developed a nasal vaccine to protect against bird flu. The corresponding study was published in Cell Reports ...