1. World Health Organization (2021, July 01). United States of America: WHO Coronavirus Disease (COVID-19) Dashboard with Vaccination Data. Available online: https://covid19.who.int/region/amro/country/us.
2. World Health Organization (2022, November 21). COVID-19 Vaccines. Available online: https://www.who.int/emergencies/diseases/novel-coronavirus-2019/covid-19-vaccines.
3. SARS-CoV-2 variants and ending the COVID-19 pandemic;Fontanet;Lancet,2021
4. Centers for Disease Control and Prevention (2022, November 01). Overview of COVID-19 Vaccines, Available online: https://www.cdc.gov/coronavirus/2019-ncov/vaccines/different-vaccines/janssen.html.
5. Inequities in technology contribute to disparities in COVID-19 vaccine distribution;Press;JAMA Health Forum,2021