evidence: The federal government has so far purchased 1.2 billion doses of Pfizer and Moderna COVID-19 vaccines combined, at a cost of $25.3 billion, or a weighted average purchase price of $20.69 per dose. In mid-2020, months before any COVID-19 vaccine was yet authorized or had even completed clinical trials, the federal government purchased an initial 200 million vaccine doses from Pfizer and Moderna (100 million each), at a price of $19.50 per dose and $15.25 per dose, respectively. This guaranteed an advance market for these vaccines, should they prove safe and effective and receive emergency use authorization (EUA) from the Food and Drug Administration (FDA), as each did in December 2020. In total, the federal government has made six different bulk purchases from Pfizer, totaling 655 million doses, and five bulk purchases from Moderna, totaling 566 million doses, for a total of 1.2 billion doses. Subsequent federal government purchases were made at a higher price per dose, with a weighted average across these purchases of $20.69. (See Figure 1 below and Tables in Appendix.) [...] - https://www.medicalcountermeasures.gov/app/barda/coronavirus/covid19.aspx - https://www.medicalcountermeasures.gov/newsroom/2020/modernamanufacturing - https://investors.modernatx.com/news/news-details/2020/Moderna-Announces-Supply-Agreement-with-U.S.-Government-for-Initial-100-Million-Doses-of-mRNA-Vaccine-Against-COVID-19-mRNA-1273/default.aspx - https://www.medicalcountermeasures.gov/newsroom/2020/moderna/ [...] - https://investors.modernatx.com/news/news-details/2021/U.S.-Government-Purchases-Additional-100-Million-Doses-of-Modernas-COVID-19-Vaccine/default.aspx - https://investors.modernatx.com/news/news-details/2021/U.S.-Government-Purchases-Additional-200-Million-Doses-of-Modernas-COVID-19-Vaccine/default.aspx - https://www.hhs.gov/about/news/2022/07/29/biden-harris-administration-secures-66-million-doses-modernas-variant-specific-covid-19-vaccine-booster-for-potential-use-in-fall-winter-2022.html