I believe that it will be Elizabeth Blackburn, the co-discoverer of telomerase.
Carol W. Greider won The Nobel Prize in Physiology or Medicine in 2009.
Jack W. Szostak won The Nobel Prize in Physiology or Medicine in 2009.
Alexander Fleming won the Nobel Prize in Physiology or Medicine in 1945 for his discovery of penicillin.
Severo Ochoa won The Nobel Prize in Physiology or Medicine in 1959.
Konrad Lorenz won The Nobel Prize in Physiology or Medicine in 1973.
Ferid Murad won The Nobel Prize in Physiology or Medicine in 1998.
Jules Bordet won The Nobel Prize in Physiology or Medicine in 1919.
Hans Spemann won The Nobel Prize in Physiology or Medicine in 1935.
Otto Loewi won The Nobel Prize in Physiology or Medicine in 1936.
Gerhard Domagk won The Nobel Prize in Physiology or Medicine in 1939.
Max Theiler won The Nobel Prize in Physiology or Medicine in 1951.
Werner Forssmann won The Nobel Prize in Physiology or Medicine in 1956.