University of Toronto - Department of Medicine, University of Toronto, Maple Leaf Medical Clinic, University of Toronto - Department of Molecular Genetics, University of Toronto - Department of Medicine, University of British Columbia (UBC) - Centre for Health Evaluation and Outcome Sciences, York University, Sinai Health System TorontoUniversity of Toronto - Centre for Global Health Research, University of Toronto - Department of Medicine, University of Toronto, University of Toronto, University of Toronto, University of Toronto - Lunenfeld-Tanenbaum Research Institute, University of Toronto - Lunenfeld-Tanenbaum Research Institute, University of Toronto - Lunenfeld-Tanenbaum Research Institute, University of Toronto - Lunenfeld-Tanenbaum Research Institute, University of Toronto - Lunenfeld-Tanenbaum Research Institute, University of Toronto - Lunenfeld-Tanenbaum Research Institute, Government of the United States of America - National Institute of Allergy and Infectious Diseases (NIAID), University of Toronto, University of Toronto, University of Toronto, Cornell University - Weill Cornell Medicine, University of Toronto, University of Toronto, Independent Public/Global Health Consultant, University of Toronto - University Health Network, York University - Centre for Diseases Modeling (CDM), Cornell University - Infectious Diseases Division, Government of the United States of America - National Institute of Allergy and Infectious Diseases (NIAID), Government of the United States of America - National Institute of Allergy and Infectious Diseases (NIAID), University of British Columbia (UBC) - School of Population and Public Health, University of Toronto - Department of Immunology, University of Toronto - Mount Sinai Hospital, Toronto, University of Toronto, University of Toronto and Independent