1 Division of Infectious Diseases, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Ontario, Canada. Electronic address: jcraig@lakeridgehealth.on.ca.
2 Department of Pathology, University of Toronto, Ontario, Canada.
3 Division of Infectious Diseases, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Ontario, Canada; Centre for Quality Improvement and Patient Safety, University of Toronto, Ontario, Canada.