This week, on the eve of World Aids Day, hosts Mark Masselli and Margaret Flinter revisit their conversation with Dr. Robert Redfield, Director of the Centers for Disease Control and Prevention, on the quest to end the HIV/AIDS epidemic in ten years. They discuss the CDC’s efforts to advance infection prevention in high risk groups through the use of PrEP, better treatment protocols for those already infected, and the ongoing quest to develop an AIDS vaccine.