Sir Frank Macfarlane Burnet, usually known as Macfarlane or Mac Burnet, was an Australian virologist known for his contributions to immunology. He won a Nobel Prize in 1960 for predicting acquired immune tolerance. He also developed the theory of clonal selection. The Nobel Prize in Physiology or Medicine 1960, announced October 20, 1960. Sir Frank Macfarlane Burnet and Peter Medawar, “for discovery of acquired immunological tolerance”. Sir Frank Macfarlane Burnet: born 1899, Traralgon, Australia. Peter Medawar: born 1915, Rio de Janeiro, Brazil. Wiki link Wiki link Data: the Nobel Foundation (CC0).