Germany reported an outbreak of highly pathogenic H5N1 bird flu on a farm in the eastern region of Saxony near the border ...

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

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 ...

For influenza viruses, imperfection is a strength. They constantly mutate, producing new strains that challenge immune ...

Experts call for greater testing of contacts of a person who was infected with the H5N1 bird flu strain before the virus ...

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

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

The bird flu may be entering a dangerous new phase. The risk that any given person will be sickened or die remains low, but ...

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

Two million Australian chickens have already been killed in the nation's bird flu outbreak — and that's before the deadliest ...

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