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 ...

Another health care worker who was exposed to a Missouri patient who tested positive for bird flu developed respiratory symptoms but wasn't tested for the flu.

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

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 ...

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

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.

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

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

CDC said that four more healthcare workers have revealed that they had respiratory symptoms. These cases have been linked to ...

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