Diseases, Conditions, Syndromes

Mad cow case in Calif. found in USDA testing

(AP) -- The discovery of mad cow disease in a dead dairy cow came soon after it arrived at a non-descript building in the heart of California's dairy country.

Diseases, Conditions, Syndromes

Five things to know about bird flu

As a new virus takes center stage at the heart of a global outbreak, it's easy to get flashbacks of March 2020.