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

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

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

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

Researchers reveal how H5N1 viruses rapidly adapted to mammals through genetic reassortment and specific mutations, raising ...

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

Ever since the virus known as H5N1 was identified in dairy cows in March, it’s continued to spread around the country — turning up in 200 herds over at least 14 states.

A new strain of bird flu threatens to be Australia’s biggest ecological disaster, decimating native birds as well as mammals ...

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

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

In a review article published in the journal Nature, the authors describe molecular and ecological factors associated with the sudden expansion of H5N1 high-pathogenicity avian influenza (HPAI ...

Research indicates that the food-stealing behavior of some seabirds may be a key factor in the spread of the lethal H5N1 bird ...