A Washington state resident has tested positive for bird flu — the first U.S. human case reported in about nine months and the first ever involving the H5N5 strain, health officials said last week.

A new effort to prepare for future avian influenza outbreaks is moving forward despite a major funding setback.

The Department of Health and Human Services had canceled hundreds of millions of dollars in funding previously committed help ...

Members of the public who spend a significant amount of time with chickens or other birds are being encouraged to sign up for ...

After more than half a century of mandatory vaccination, the U.S. military will no longer require all American troops to get ...

A final-stage trial has started of an mRNA vaccine against the bird flu strain infecting many animals – and occasionally ...

British volunteers have started receiving doses in a large-scale clinical trial of an mRNA vaccine built to fight H5 bird flu ...