Rosalyn Sussman Yalow (July 19, 1921 – May 30, 2011) was an American medical physicist, and a co-winner of the 1977 Nobel Prize in Physiology or Medicine (together with Roger Guillemin and Andrew Schally) for development of the radioimmunoassay (RIA) technique. She was the second American woman to be awarded the Nobel Prize Physiology or Medicine after Gerty Cori.

Biography

She was born in Manhattan, the daughter of Clara (née Zipper) and Simon Sussman. She attended Walton High School.

I was excited about achieving a career in physics. My family, being more practical, thought the most desirable position for me would be as an elementary school teacher.

Knowing how to type, she won a part-time position as secretary to Dr. Rudolf Schoenheimer, a leading biochemist at Columbia University's College of Physicians and Surgeons. Not believing that any good graduate school would admit and provide financial support to a woman, she took a job as a secretary to Michael Heidelberger, another biochemist at Columbia, who hired her on the condition that she studied stenography. She graduated from Hunter College in January 1941.