title: Portrait of an optimist.
authors.affiliation: a Center Head, Division Head, and Professor, Center for Infectious Disease, Division of Vaccine Discovery , La Jolla Institute for Allergy and Immunology , La Jolla , CA , USA.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Sette
mesh_terms: D015551:Autoimmunity / Q000276:immunology*; D004198:Disease Susceptibility / Q000276:immunology*; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D008285:Major Histocompatibility Complex / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology*