1 Department of Emergency Medicine, Faculty of Medicine, Diamond Health Care Centre, University of British Columbia, Vancouver, BC, Canada. mdouglasvail@gmail.com.
2 Schulich School of Medicine and Dentistry, Western University, London, ON, Canada.
3 Division of Infectious Diseases, Department of Medicine, Vancouver General Hospital, University of British Columbia, Vancouver, BC, Canada. janjhajek@gmail.com.