1. Canadian Center for Vaccinology, IWK Health, Nova Scotia Health and Dalhousie University, Halifax, Canada
2. Department of Pediatrics, Faculty of Medicine, Dalhousie University, Halifax, Canada
3. Vaccine Evaluation Center, BC Children’s Hospital Research Institute, Vancouver, Canada
4. Department of Pediatrics, University of British Columbia, Vancouver, Canada
5. Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, Canada
6. Faculty of Nursing, University of Alberta, Edmonton, Canada
7. School of Public health, University of Alberta, Edmonton, Canada