"Marrack, Philippa"@en . "Marrack, Pippa"@en . . . . . . . "1945-06-28Z"^^ . . "United States-based English biologist and immunologist" . . "Philippa \"Pippa\" Marrack FRS (born 28 June 1945) is an English biologist, 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."@en . "Philippa \"Pippa\" Marrack"@en . . "1945Z"^^ .