1. Division of Infectious Diseases, Department of Medicine, University of Toronto, Toronto, Canada;
2. Lakeridge Health, Oshawa, Canada;
3. Department of Pediatrics, University of Toronto, Toronto, Canada;
4. Faculty of Medicine, University of Toronto, Toronto, Canada;
5. Public Health Ontario Laboratory, Public Health Ontario, Toronto, Canada
6. Tropical Disease Unit, Toronto General Hospital, Toronto, Canada;