1. Division of Infectious Diseases, The Hospital for Sick Children, Toronto, Ontario;
2. Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton Health Sciences, Hamilton, Ontario;
3. Applied Health Research Centre, Li Ka Shing Knowledge Institute of St. Michael’s Hospital, Toronto, Ontario;
4. Department of Paediatrics, St Michael’s Hospital, Toronto, Ontario;
5. Institute for Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario;
6. Department of Pediatrics, University of Toronto, Toronto, Ontario;
7. Department of Community Health Sciences, Cumming School of Medicine, University of Calgary , Calgary, Alberta;
8. Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario;
9. Michael G DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario