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

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

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

More than a month after a person in Missouri mysteriously fell ill with H5-type bird flu, investigators in the state are ...

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

"Even sporadic cases of human-to-human transmission indicate a big change in the virus and suggest it is exploring new ...

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 ...

Four healthcare workers in Missouri who came into contact with a bird flu patient developed mild respiratory symptoms, but ...

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

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

Four more Missouri healthcare workers are experiencing mild respiratory symptoms after coming in contact with a bird flu ...