evidence: - ^ "Pfizer-BioNTech COVID-19 Vaccine". U.S. Food & Drug Administration. 11 December 2023. Retrieved 26 January 2024. [...] - ^ a b "(CDC) Janssen (Johnson & Johnson) COVID-19 Vaccine". U.S. Food & Drug Administration. 10 May 2023. [...] - ^ "Moderna COVID-19 Vaccine". U.S. Food and Drug Administration (FDA). 1 November 2023. Retrieved 26 January 2024.