This week, Aaron interviews Dr. Anthony Fauci, Director of the National Institute of Allergy and Infectious Diseases (NIAID) of the National Institutes of Health (NIH). They discuss the advances in prevention and treatment of major infectious diseases (Tuberculosis, Malaria, and HIV/AIDS) globally. They also address the challenges in changing social mores in affected parts of the world to aid their campaign and the obstacles to developing a vaccine to combat the spread of HIV/AIDS.