Thomas Kresina is a Senior Pubic Health Advisor in the Division of Pharmacologic Therapies, Center for Substance Abuse Treatment, Substance Abuse and Mental Health Services Administration (SAMHSA) USA and functions as the full-time liaison to the US Office of the Global AIDS Coordinator in the Department of State. His duties are to provide technical assistance to countries receiving PEPFAR support related to substance abuse treatment as a component of their national HIV Prevention, Care and Treatment Program, to serve on substance abuse related Technical Working Groups of PEPFAR as well as enhance federal interagency collaborations related to substance abuse utilizing SAMHSA resources and expertise. Prior to this position, Dr. Kresina was the Deputy Director of the Center on AIDS and Medical Consequences of Drug Abuse (CAMCODA) at the National Institute on Drug Abuse, NIH where he . administering both domestic and international research programs in HIV/AIDS and liver disease related to hepatitis infections. In academia, Dr. Kresinaâ€™s research programs at Case Western Reserve University and Brown University involved infectious and liver diseases with international research programs in China, the Philippines and Egypt. He has over 100 research and health services publications related to infectious diseases, substance abuse, and global health.