1. Mohammed, I. et al. The efficacy and effectiveness of the COVID-19 vaccines in reducing infection, severity, hospitalization, and mortality: a systematic review. Hum. Vaccines Immunother. 18, 2027160.
2. Association Between mRNA Vaccination and COVID-19 Hospitalization and Disease Severity;Tenforde;JAMA,2021
3. Lives and costs saved by expanding and expediting coronavirus disease 2019 vaccination;Bartsch;J Infect Dis,2021
4. Canada, P. H. A. of. Archived: Guidance on the prioritization of initial doses of COVID-19 vaccine(s) [2020-12-18]. https://www.canada.ca/en/public-health/services/immunization/national-advisory-committee-on-immunization-naci/guidance-prioritization-initial-doses-covid-19-vaccines.html (2020).
5. Canada, P. H. A. of. Archived 13: Summary of National Advisory Committee on Immunization statement of May 18, 2021. https://www.canada.ca/en/public-health/services/immunization/national-advisory-committee-on-immunization-naci/recommendations-use-covid-19-vaccines/summary-updated-statement-may-18-2021.html (2021).