A Q-and-A with Leonard Jason, on Case Definition A Brief Update: Berkeley’s crowdfunding period closed on April 30th–Monday night. I ended the campaign with $87,580. After Berkeley’s 7.5% in fees, the funds will cover my salary/benefit from July 1, 2018 to June 30, 2019, and some travel costs. I really, really appreciate the fantastic support. Thanks to everyone! I’ve taken a few days to regroup from my Australia trip and catch up on my time zones. ********** Leonard Jason is a professor of psychology at DePaul University in Chicago. He has served as vice president of the International American Association of CFS/ME and as chairperson of the Research Subcommittee of the U.S. Chronic Fatigue Syndrome Advisory Committee. Professor Jason began investigating chronic fatigue syndrome almost 30 years ago. Much of his work has focused on the epidemiology and prevalence of the illness and on the impact of using various case definitions. He has long been concerned that the lack of a uniform set of criteria for identifying study participants has hindered progress in the science. Dr. Jason recently shared his thoughts about these issues.