Dr. Paul E. Sax is Clinical Director of the Division of Infectious Diseases at Brigham and Women's Hospital (BWH), where he holds the Bruce A. Beal and Robert L. Beal Distinguished Chair in Infectious Diseases, and Professor of Medicine at Harvard Medical School. Dr. Sax received his MD from Harvard Medical School, completed his residency in Internal Medicine at BWH, then fellowship in Infectious Diseases at Massachusetts General Hospital. He is Editor-in-Chief of Open Forum Infectious Diseases, is Section Editor of HIV/AIDS in UpToDate, on the Editorial Board of NEJM Journal Watch Infectious Diseases (where he writes the HIV and ID Observations blog), and on the editorial advisory board of Medscape HIV/AIDS.

Dr. Sax is the Associate Program Director for the Mass General Brigham fellowship in Infectious Diseases, is on the core faculty of the International Antiviral Society - USA, and teaches regularly on HIV and infectious diseases locally, nationally, and internationally. In addition to his clinical practice and teaching, Dr. Sax's ongoing areas of research include clinical trials of antiretroviral therapies, cost-effectiveness of management strategies for HIV, and toxicity of antiretroviral therapy. He is presently the principal investigator at the BWH AIDS Clinical Trials Unit, and is a member of the Cost Effectiveness of Preventing AIDS Complications (CEPAC) Research Group.