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.

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

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

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

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 ...

Farmworkers in close contact with infected animals should be tested even if they show no symptoms, according to new guidance ...

Recent testing of 115 dairy farm workers in Michigan and Colorado who were exposed to cows infected with H5N1 bird flu found ...

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

CDC identifies dairy workers with H5N1 antibodies, some asymptomatic. 46 human cases in US, low threat to public. Safety recommendations updated.

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