Florence Seibert
October 6, 1897 - August 23, 1991

Florence Siebert was born in Easton, Pennsylvania. Florence was a young child when she became ill with polio. She walked with a limp after her recovery, but did not let that stop her from living a full, busy life. As a teenager, Florence enjoyed reading biographies about famous scientists, so it seemed natural that she would go to college to become a scientist.

She earned an A.B. from Gaucher College and a Ph.D. in biochemistry from Yale University. While working on her doctorate, she discovered that intravenous injections made with contaminated distilled water could cause fevers in patients, so she invented a new distillation process that eliminated all bacteria. In 1923 Siebert went to the University of Chicago. From 1924-28 she became a pathology instructor. She became an assistant professor of biochemistry in 1928. Between 1937 and 1938 Florence studied at the University of Uppsala in Sweden. Her work in science during this time frame proved to be very helpful in the development of a reliable way to test people to see if they had TB. This same skin test for tuberculosis is still in use today and has helped save many lives.

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