1. Division of Infectious Diseases, Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
2. Pediatric Emergency Research Canada, Calgary, Alberta, Canada
3. Division of Emergency Medicine, Department of Pediatrics, University of Ottawa, Ottawa, Ontario, Canada
4. Division of Emergency Medicine, Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
5. Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
6. Biostiatistics Unit, St Joseph’s Healthcare Hamilton, Hamilton, Ontario, Canada
7. Children’s Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
8. Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, Ontario, Canada
9. Division of Infectious Diseases, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
10. Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
11. Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada