Affiliation: | 1. School of Nursing, Faculty of Health Professions, Dalhousie University, Halifax, Nova Scotia, Canada;2. Department of Paediatrics, Dalhousie University, Halifax, Nova Scotia, Canada;3. Canadian Center for Vaccinology, IWK Health Centre, Halifax, Nova Scotia, Canada;4. Department of Community Health and Epidemiology, Dalhousie University, Halifax, Nova Scotia, Canada |