Anthony Stephen "Tony" Fauci (born December 24, 1940) is an immunologist who has made substantial contributions to HIV/AIDS research and other immunodeficiencies, both as a scientist and as the head of the National Institute of Allergy and Infectious Diseases (NIAID).Anthony Stephen "Tony" Fauci (born December 24, 1940) is an immunologist who has made substantial contributions to HIV/AIDS research and other immunodeficiencies, both as a scientist and as the head of the National Institute of Allergy and Infectious Diseases (NIAID).He received Dr. Paul Janssen Award for Biomedical Research in 2010 for his pioneering contributions to basic and clinical research in the areas of AIDS and other immunodeficiencies, both as a scientist and through his service as the Director of the NIAID.