Dr. Jim Kellner is a pediatrician, infectious diseases specialist, vaccine researcher and Professor of Pediatrics at the University of Calgary and Alberta Children’s Hospital. Dr. Kellner was Head of the Department of Pediatrics in Calgary from 2008 to 2018. Since then, he has returned to his academic focus on vaccine preventable infections, including COVID-19, through research and advisory work. He is a member of the federal COVID-19 Immunity Task Force and the Alberta Advisory Committee on Immunization. He is leading and participating in several local, national, and international COVID-19 research studies on immunity in children, vaccine safety and a vaccine clinical trial.