The latest developments are highly concerning, as they raise the possibility that the H5N1 virus has evolved the ability to ...

None of the health care workers or other contact have tested positive for avian flu antibodies so far — but could their ...

Four additional healthcare workers in Missouri who came in contact with a hospitalized bird flu patient developed mild ...

A total of 94 healthcare workers were possibly exposed to the state's first human bird flu case, and the nation's first ...

Four more health-care workers who tended to a person hospitalized with H5N1 bird flu have revealed that they had respiratory ...

In what could be the first cases of bird flu between humans in the US, a group of potential H5N1 infections in Missouri has now grown to 8.

In what could be the first cases of bird flu spreading between humans in the United States, a group of potential H5N1 ...

As free tests are now available, one COVID-19 variant continues to be the most prevalent in the United States.

A second health worker in contact with the Missouri patient who tested positive for bird flu also developed symptoms but wasn ...

Health officials identified three contacts, including two healthcare workers, who were closely monitored after a bird flu ...

A cluster of healthcare workers has been tested for H5N1 bird flu in what could be the first cases of human-to-human spread of the virus.

The CDC said an investigation into a human H5N1 bird flu infection in Missouri has found four additional health care workers ...