Niels Kaj Jerne, FRS was a Danish immunologist. He shared the Nobel Prize in Physiology or Medicine in 1984 with Georges J. F. Köhler and César Milstein "for theories concerning the specificity in development and control of the immune system and the discovery of the principle for production of monoclonal antibodies". The Nobel Prize in Physiology or Medicine 1984, announced October 15, 1984. Niels K. Jerne, Georges J.F. Köhler, and César Milstein, “for theories concerning the specificity in development and control of the immune system and the discovery of the principle for production of monoclonal antibodies”. Niels K. Jerne: born 1911, London, United Kingdom. Georges J.F. Köhler: born 1946, Munich, Germany. César Milstein: born 1927, Bahia Blanca, Argentina. Wiki link Wiki link Wiki link Data: the Nobel Foundation (CC0).