For World AIDS Day, I interviewed two pioneers in HIV/AIDS activism and research: Dr. Kenneth Mayer, Medical Research Director of Fenway Health and a professor of medicine, global health and population at Harvard; and Professor Gregg Gonsalves from the Yale School of Public Health. Ken has been part of AIDS research almost from the beginning, and Gregg is a passionate advocate for underrepresented patients. Both have devoted their careers to furthering HIV/AIDS awareness and public health responsiveness.