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Anthony Fauci is an American immunologist, medical researcher, and public health administrator who has served as the Director of the National Institute of Allergy and Infectious Diseases (NIAID) since 1984. In 1988, Fauci became the leading figure in the United States government's response to the HIV/AIDS epidemic. He played a key role in developing effective treatments for HIV/AIDS and in advocating for increased funding for HIV/AIDS research.