Paul E. Sax, MD is Clinical Director of the Division of Infectious Diseases and the HIV Program at Brigham and Women's Hospital (BWH) in Boston. He has been on the faculty at Harvard Medical School since 1992, where he is currently an Associate Professor of Medicine. Dr. Sax received his MD from Harvard Medical School in 1987, served his residency in Internal Medicine at BWH, and continued his postdoctoral education with a fellowship in the Infectious Disease Unit of Masschusetts General Hospital. Dr. Sax is Editor-in-Chief of AIDS Clinical Care, is on the peer review board of the HIV/AIDS Section of UpToDate, and is the HIV disease section editor for Infectious Diseases Special Edition and Antibiotic Essentials. He is also on the core faculty of the International AIDS Society - USA and the New England AIDS Education and Training Center. He is actively involved in patient care, teaching and HIV research, and his main research interests include clinical trials of antiretroviral therapies, cost effectiveness of management strategies for HIV, toxicity of antiretroviral treatment, and identification, treatment and outcome of primary HIV infection. He is presently the principal investigator at the BWH AIDS Clinical Trials Unit and a member of the Cost-Effectiveness of Preventing AIDS Complications (CEPAC) Research Group. Dr. Sax lectures nationally and internationally on HIV therapy and has contributed many HIV-related publications to the medical literature. He was awarded the Edward H. Kass Award in Clinical Excellence in 1993, the Harvard-Longwood Infectious Disease Fellowship Award in Clinical Teaching in 1997, and a Distinguished Faculty Resident Mentoring Award in 2003.