Stock Photo - Oct. 10, 1969 - Nobel Prize in Physiology and Medicine 1969 The Nobel Prize in Physiology and Medicine 1969 was jointly awarded for their work between 1940 and 1952 in microbiology and genetics which set the solid foundations on which modern biology rests, to Max Delbruck, 63, California Institute of Technology, Pasadena; Alfred Day Hershey (60), Carnegie Institution of Washington, director Genetic Research Unit, Cold Spring Harbour, N.Y., and Salvador E. Leria, Massachusetts Institute of Technology, Cambridge, Mass. (Credit Image: © Keystone Press Agency/Keystone USA via ZUMAPRESS.com)