On Sept. 22, 2021, Pfizer and BioNTech announced plans to expand their agreement with the U.S. government by providing an additional 500 million doses of the companies’ COVID-19 vaccine at a not-for-profit price for donation to low- and lower-middle-income countries and the organizations that support them.

This expanded agreement brought the total number of doses to be supplied to the U.S. government for donation to these countries to one billion.