Peter Doherty is Laureate Professor, Department of Microbiology and Immunology at the University of Melbourne. His pioneering research into human immune systems earned him the Nobel Prize for Physiology and Medicine in 1996, which he shared with Rolf M. Zinkernagel. The following year he was named Australian of the Year and awarded a Companion of the Order of Australia (AO). He divides his time between Melbourne and Memphis.