Washington confirms first human H5N5 bird flu death; officials probe transmission. Symptoms severe; experts urge precautions, ...

A Washington state resident has tested positive for bird flu, marking the first human case in the U.S. in nine months, and with a strain only seen in animals before.

While it remains seasonal in poultry, the disease is spreading in dairy cows and infecting hundreds of other ...

Although bird flu infections in humans remain rare, this case marks a significant development in flu surveillance in the U.S.

A Washington resident has died after contracting a bird flu strain never before seen in humans. Health officials confirmed it as the first known human infection of this new variant. Investigators are ...

The person, who had been hospitalized in King County since early November, died on Nov. 21, health officials said.

The man, an older adult with underlying health conditions, was being treated for a type of bird flu called H5N5.

While the Highly Pathogenic Avian Influenza continues to pop up around Michigan and infecting poultry farms, the strain that ...

The first person to contract H5N5 avian influenza, a rare strain of the disease known as bird flu, died in Washington state Friday. The state’s Department of Health said in a release the resident ...

A Washington state resident who was undergoing treatment for H5N5 avian influenza died on Friday, the Washington State Department of Health reported. | A Washington state resident who was undergoing ...

Finland was the first country to offer the zoonotic avian influenza A(H5N8) vaccine manufactured by Seqirus to at-risk ...

One of the body's key defenses against infection is a fever. Scientists say this may not work against the bird flu.