Last year, bird flu killed more than 40 million egg-laying birds. Including ducks and chickens, 148 million birds have been ordered euthanized since H5N1 began spreading around the U.S. in 2022 ...

More than 100 federal scientists who track bird flu, including vaccine and food safety experts, have been laid off. This comes as the deadly pathogen rips through dairy herds and poultry flocks.

Bird flu is continuing to spread in animals across the United States more than a year after the first human case was detected. Since then, at least 70 people have fallen ill and at least one death ...

The bird flu was first described in Italy in 1878 as a "fowl plague." This current outbreak, from a strain that emerged among poultry flocks and wild birds in Europe in the fall of 2020, has been ...

No other animal is as inexorably linked with extinction as the dodo, an odd-looking flightless bird that lived on the island of Mauritius in the Indian Ocean until the late 17th century.

Historically, bird flu used to result in severe symptoms with up to a 60 percent mortality rate. However, most recent human cases of bird flu in the U.S. have resulted in only mild symptoms.

Both the Finnish and the U.S. bird flu vaccines are made by CSL Seqirus but are different vaccines. In the summer, U.S. officials stockpiled 4.8 million doses of the vaccine that officials said ...

Bird mites will try to survive on a human host, but they can't reproduce on human blood. People who live and work on farms and in rural areas are in regular contact with poultry, turkey, geese ...

Bird watchers look for an anhinga that has been spotted in ponds along North 95th street in Boulder County near Lafayette on June 10, 2025. (Photo by Helen H. Richardson/The Denver Post) ...