Currently, Dr. Jag Khalsa serves a Adjunct Faculty with the Institute of Human Virology, University of Maryland School of Medicine; Adjunct Professor with the Department of Microbiology, Immunology and Tropical Disease, The George Washington University, School of Medicine, Washington, DC.; and Special Volunteer at NIDA/NIH; retired in 2017 after 30 years as the Chief of the Medical Consequences of Drug Abuse and Infections Branch, NIDA. With 50+ years of experience in almost all aspects of drug research, he was responsible for developing and administering a national and international program of clinical research on medical and health consequences of drug abuse and co-occurring infections (HIV, HCV, and others). Prior to joining NIDA in 1987, he served for ~10 years at the FDA (INDs/NDAs); he has published in peer-reviewed journals; serves on editorial boards including JAM, CID, and others; has received distinguished service and lifetime achievement awards from NIH, ISAM, ASAM and Icelandic Soc Addict Med. He has a Ph.D. in neuropharmacology and a masters degree in pharmacology and pharmacognosy, and two bachelor degrees in Chemistry/Botany and Pharmacy. He can be reached via e-mail: jkhalsa@yahoo.com.