1 Centre for Immunization and Respiratory Infectious Diseases (Ismail), Public Health Agency of Canada, Ottawa, Ont.; Metro City Medical Clinic (Ismail); Immunization and Vaccine Preventable Diseases (Deeks), Public Health Ontario; Dalla Lana School of Public Health (Deeks), University of Toronto, Toronto, Ont. shainoor.ismail@canada.ca shainoor.ismail@gmail.com.
2 Centre for Immunization and Respiratory Infectious Diseases (Ismail), Public Health Agency of Canada, Ottawa, Ont.; Metro City Medical Clinic (Ismail); Immunization and Vaccine Preventable Diseases (Deeks), Public Health Ontario; Dalla Lana School of Public Health (Deeks), University of Toronto, Toronto, Ont.