Walter Reed Army Institute of Research - U.S. Military HIV Research Program, Mahidol University - Vaccine Trial Centre, Armed Forces Research Institute of Medical Sciences, Armed Forces Research Institute of Medical Sciences, Walter Reed Army Institute of Research - U.S. Military HIV Research Program, Walter Reed Army Institute of Research - U.S. Military HIV Research Program, US Army Medical Research Development Command (USAMRDC) - Special Operations Branch, US Army Medical Research Development Command (USAMRDC) - Special Operations Branch, Mahidol University - Vaccine Trial Centre, Walter Reed Army Institute of Research - U.S. Military HIV Research Program, Government of the United States of America - Henry M. Jackson Foundation for the Advancement of Military Medicine, Walter Reed Army Institute of Research - U.S. Military HIV Research Program, Armed Forces Research Institute of Medical Sciences, US Army Medical Materiel Development Activity, Mahidol University - Vaccine Trial Centre, Walter Reed Army Institute of Research - U.S. Military HIV Research Program, Armed Forces Research Institute of Medical Sciences and Independent