Alice Catherine Evans

Alice Catherine Evans, born on January twenty-ninth, eighteen eighty-one, was a pioneering American microbiologist and bacteriologist. Her groundbreaking work at the U.S. Department of Agriculture focused on the bacteriology of milk and cheese, a field that would significantly impact public health.

Evans is best known for her discovery that Bacillus abortus, now known as Brucella abortus, was the causative agent of brucellosis, also referred to as undulant fever or Malta fever. This crucial finding not only advanced scientific understanding but also led to the implementation of milk pasteurization in the United States in nineteen thirty, a measure that greatly improved food safety.

In addition to her scientific achievements, Evans made history by becoming the first woman elected as president of the Society of American Bacteriologists. Her leadership and contributions to the field have left a lasting legacy, inspiring future generations of scientists.