Moderna will provide up to 500 million doses of COVID-19 vaccine to COVAX, the U.N.-backed program that provides shots to people in low-and middle-income countries by the end of 2022.

Moderna will provide up to 500 million doses of COVID-19 vaccine to COVAX, the U.N.-backed program that provides shots to people in low-and middle-income countries by the end of 2022.