Mark Tyndall MD, ScD, FRCPC is a Professor at the University of British Columbia, Canada. He was formerly the Executive Director of the BC Centre for Disease Control and the Deputy Provincial Health Officer. He received his medical degree from McMaster University, his infectious diseases training at the University of Manitoba, and his doctoral degree in public health from Harvard University. He has over three decades of community-based research and advocacy experience with a focus on global health, drug use, HIV, and harm reduction. He has authored over 250 peer-reviewed publications, presented a 2017 TEDMED talk on harm reduction, and is releasing a new book; “Vaping: Behind the Smoke and Fears” at this year’s GFN. His current research and advocacy efforts are focused on innovative programs to reduce drug overdose/poisoning through safe drug supply programs and accelerating the global transition away from combustible cigarettes to vaping and other safer nicotine products.