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

Seven people fell ill with flu-like symptoms after contact with someone infected with H5N1, raising fears that the virus has ...

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

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

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.

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

Dhillon is an instructor in the Division of Global Health Equity at Brigham and Women’s Hospital and Harvard Medical School.

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 ...

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

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

In the absence of PCR testing, infectious disease experts and epidemiologists are anxiously awaiting serology results from ...