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 CDC advised clinicians to consider H5N1 in patients who have acute respiratory illness symptoms or conjunctivitis with relevant exposure, including to raw milk.

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

The U.S. Centers for Disease Control and Prevention (CDC) announced it is streamlining its H5N1 highly pathogenic avian ...

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

CDC ends emergency response to H5N1 bird flu, citing decline in cases. Surveillance and readiness to continue under CDC's influenza division.

The bird flu emergency is officially over, according to the U.S. Centers for Disease Control and Prevention (CDC). The agency ...

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Tens of thousands of birds were affected by Avian Influenza in central Pennsylvania after the Centers for Disease Control and ...