Rising H5N1 bird flu cases in the U.S. prompted the CDC to study the virus in ferrets, revealing it may have the potential to ...

H5N1 bird flu is likely infecting more people than we know. New research from the Centers for Disease Control and Prevention ...

The H5N1 virus spreading among cows is infecting more farm workers than experts realized. The CDC is now recommending anyone ...

Almost from the beginning of the spread of H5N1 bird flu among farms and ranches in the U.S. earlier this year, experts and ...

"The purpose of these actions is to keep workers safe, to limit the transmission of H5 to humans and to reduce the ...

A new study revealed more farmworkers had signs of infection, even though they reportedly did not display symptoms of illness.

It is unclear whether there will also be testing in larger cities. ...

A new study found some dairy workers showed signs of infection, even when they didn’t report feeling sick. Blood tests from ...

There were 21 cases of human bird flu in California on Nov. 6. Thirteen of those cases are in Tulare County. Here's why it matters.