President Biden announces purchase of 200M more doses of Pfizer, Moderna COVID-19 vaccines

President Joe Biden announced Tuesday that his administration is working with coronavirus vaccine makers to buy another 200 million doses that would arrive this summer — raising the total to 600 million and ensuring the U.S. will eventually have two shots of the Pfizer and Moderna vaccines for nearly every American. Biden also said the federal government will be increasing the number of doses shipped to states — from 8.6 million doses a week to 10 million a week for the next three weeks, and will start notifying states how many doses they will receive three weeks in advance.