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.

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

The CDC has ended its H5N1 bird flu emergency response, but experts urge continued vigilance as the virus remains a threat through food, animals, and evolving zoonotic risks.

Three dead birds in Sacramento County were found to have contracted the virus as activity ramped up in Placer County.

Chinese scientists say they have uncovered how the H5N1 virus initially invades the mammary glands of dairy cattle, ...

The US Centers for Disease Control and Prevention says it has ended its emergency response to H5N1 bird flu, citing a drop in ...

The U.S. Centers for Disease Control and Prevention said on Monday it has ended its emergency response for H5N1 bird flu, ...

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

Citing a drop in case numbers, the Centers for Disease Control and Prevention (CDC) has ended its emergency response to the ...

The Centers for Disease Control and Prevention (CDC) has ended its emergency response to the H5N1 avian flu. A spokesperson ...

The CDC is ending its emergency response to bird flu, citing a significant drop in cases between February and July.