Infection beyond doubt that certain diseases are caused by infectious agents, and developed a vaccine for rabies. Robert Koch, provided the study of infectious diseases with a scientific basis known as Koch's postulates. Edward Jenner, Jonas Salk and Albert Sabin developed effective vaccines for smallpox and polio, which would later result in the eradication and near-eradication of these diseases, respectively. Alexander Fleming discovered the world's first antibiotic, Penicillin, which Florey and Chain then developed. Gerhard Domagk developed sulphonamides, the first broad spectrum synthetic antibacterial drugs. The medical treatment of infectious diseases falls into the medical field of Infectious Disease and in
Salk Institute for Biological Studies Elizabeth Blackburn, Sydney Brenner, and Roger Guillemin. Three of Salk's 11 Nobel laureates are now deceased: Francis Crick, Robert W. Holley, and Renato Dulbecco. Another five scientists trained at Salk have gone on to win Nobel prizes. The institute is organized into several research units, each of which is further composed of several scientific groups, each led by a member of the faculty. Some of these units are: Elizabeth Blackburn is the President of the Salk Institute since 1 January 2016. Edward Callaway is the chair of the academic council. There are 56 faculty members. Six of these are members