1. Johns Hopkins University & Medicine Coronavirus Resource Center. COVID-19 Dashboard by the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University (JHU). Available at: https://coronavirus.jhu.edu/map.html. Accessed July 27, 2021.
2. Centers for Disease Control and Prevention. COVID-19: your health. Available at: https://www.cdc.gov/coronavirus/2019-ncov/your-health/index.html. Accessed July 27, 2021.
3. Safety and efficacy of the BNT162b2 mRNA Covid-19 vaccine;Polack;N Engl J Med,2020
4. US Food & Drug Administration. Vaccines and Related Biological Products Advisory Committee Meeting December 10, 2020 Announcement. Available at: https://www.fda.gov/advisory-committees/advisory-committee-calendar/vaccines-and-related-biological-products-advisory-committee-december-10-2020-meeting-announcement#event-materials. Accessed July 27, 2021.
5. Safety and efficacy of the BNT162b2 mRNA Covid-19 vaccine;Skowronski;N Engl J Med,2021