The H5N1 bird flu has been spreading widely among wild birds, poultry and other animals around the world for several years, and starting early last year became a problem in people and cows in the U.S.

So far, only one human case has been confirmed in the U.S. in 2024. Public health officials are continuing to monitor as an outbreak of avian flu, also known as bird flu, continues to spread ...

The 70 human cases of bird flu in the U.S. so far have been sporadic — scattered transmissions in which an individual was infected by an animal. There is no sustained human-to-human transmission, ...

Dec. 21, 2011— -- The virologist who created a potentially dangerous, mutant strain of the deadly bird flu virus has agreed to omit methodology details from his published reports on the new ...