New versions of the H5N1 virus are increasingly adept at spreading. Suggestions to either let it rip in poultry or vaccinate the birds could backfire.

The U.S. Centers for Disease Control and Prevention (CDC) announced the end of the bird flu emergency, at least for now.

U.S. Secretary of Agriculture Brooke L. Rollins recently provided an update on the U.S. Department of Agriculture’s ...

While H5N1 does not have high mortality rates in dairy cows, the infection causes decreases milk production and milk quality, ...

An outbreak of bird flu in Brazil, the world's largest chicken exporter, has prompted countries to implement trade ...

The Centers for Disease Control and Prevention ended its emergency response to bird flu as the outbreak that sickened dozens ...

The U.S. Centers for Disease Control and Prevention ended its emergency response for bird flu as the outbreak that sickened dozens of people, spread to cattle and drove up ...

An outbreak of bird flu in Brazil, the world's largest chicken exporter, has prompted countries to implement trade ...

The CDC ends its emergency response to H5N1 bird flu after recording 70 human cases and one death nationally, even as experts ...

Doctors and researchers said the moves will make it harder to detect potentially dangerous changes. If the virus continues to ...