One bird spectacle readily observable in Allegheny County right now comes in the form of 100 purple martins swirling above ...

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.

PHILADELPHIA (AP) — As trash and tempers heat up across Philadelphia on Day 8 of a strike by blue-collar city workers Tuesday ...

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 ...

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

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