U.S. will have enough Covid-19 vaccines for 300 million Americans by end of summer, Biden says

President Biden plans to purchase another 200 million doses of coronavirus vaccines from Pfizer and Moderna, which should give the U.S. enough to fully vaccinate 300 million Americans by the end of summer 2021, the administration announced in a press release Tuesday. The Biden administration will also increase the number of vaccines being shipped weekly to states from 8.6 million to 10 million. The move comes less than a week after the Biden administration released a sweeping national plan to revamp the coronavirus vaccine effort. That plan foreshadowed a number of the changes announced Tuesday, including purchasing more vaccines from vaccine manufacturers.