More in the "Immune System 101" playlist: http://www.youtube.com/playlist?list=...
Dr. Katherine Gundling, Professor, Division of Allergy and Immunology at UCSF presents an overview of the immune system, how it functions and what can go wrong. Series: "UCSF Mini Medical School for the Public" [5/2011] [Health and Medicine] [Show ID: 21375]