1 Division of Infectious Diseases (Schwartz) and Department of Emergency Medicine (Ivankovic), St. Joseph's Health Centre, Unity Health Toronto; Department of Family and Community Medicine (Ivankovic), Division of Emergency Medicine (Ivankovic), and Dalla Lana School of Public Health (Schwartz), University of Toronto, Toronto, Ont. maria.ivankovic@unityhealth.to.
2 Division of Infectious Diseases (Schwartz) and Department of Emergency Medicine (Ivankovic), St. Joseph's Health Centre, Unity Health Toronto; Department of Family and Community Medicine (Ivankovic), Division of Emergency Medicine (Ivankovic), and Dalla Lana School of Public Health (Schwartz), University of Toronto, Toronto, Ont.