Philippa Marrack

Philippa "Pippa" Marrack FRS (born 28 June 1945) is an English immunologist and academic, based in the United States, best known for her research into T cell development, T cell apoptosis and survival, adjuvants, autoimmune disease, and for identifying superantigens, the mechanism behind toxic shock syndrome. She collaborates with her husband, John W. Kappler.