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 ...

Testing is ongoing among five health care workers and a household member exposed to the infected person who all came down ...

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 spreading between humans in the United States, a group of potential H5N1 ...

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.

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

A third close contact of a patient in Missouri who was hospitalized with H5N1 bird flu has reported that they also ...

Seven people in contact with a patient hospitalized with bird flu also developed symptoms, the C.D.C. reported. Some are ...

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

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

A second Missouri healthcare worker who had contact with a hospitalized patient infected with bird flu developed mild ...