Alice_Catherine_Evans--Donna_E._Shalala

Alice Catherine Evans (January 29, 1881 – September 5, 1975) was an American microbiologist. She became a researcher at the U.S. Department of Agriculture where she investigated bacteriology in milk and cheese. She proved that Bacillus abortus (called Brucella abortus) caused the disease brucellosis (undulant fever or Malta fever) in both cattle and humans which led to the pasteurization of milk in US in 1930. Evans was the first woman president elected by the Society of American Bacteriologists.