Professor Peter Doherty has certainly had an impressive and illustrious career as an immunologist. In 1996, he and his colleague Rolf M Zinkernagel were awarded a Nobel Prize for their work on how the immune system recognises virus-infected cells. In 1997, he was named Australian of the Year. Now an indomitable octogenarian, Doherty looks back at his career and reflects on how science has changed in his lifetime.In this illuminating interview with Research Features, we discuss Doherty’s remar...