But he doesn't dwell on it. But very few people actually do. This was a discovery. Doherty is a man who loves a mystery. This yen for the unknown is what led him to study immunology.
Immunology attracts people who get some sort of satisfaction out of complexity.
The immunologist actually started out his career as a scientist studying veterinary medicine. Doherty was attracted into immunology after reading the works of Sir McFarland Burnett, an Australian immunologist who won the Nobel Prize. Burnett generated ideas and concepts and his books influenced young Doherty. After earning his Ph.D., he went on to work at Australian National University and the Wistar Institute in Philadelphia. He was recruited to St. Jude in 1988.