1. Clinical Epidemiology Program, Ottawa Hospital Research Institute, The Ottawa Hospital, Ottawa, ON, Canada K1H 8L6
2. Department of Medicine, Division of Infectious Disease, The Ottawa Hospital, Ottawa, ON, Canada K1H 8L6
3. School of Epidemiology, Public Health and Presentation Medicine, University of Ottawa, Ottawa, ON, Canada K1H 8L6
4. Department of Obstetrics and Gynaecology, The Ottawa Hospital, Ottawa, ON, Canada K1H 8L6
5. Department of Pediatrics, Division of Infectious Diseases, Children’s Hospital of Eastern Ontario, University of Ottawa, Ottawa, ON, Canada K1H 8L1