Moderna Vaccine
A vial of the Moderna COVID-19 vaccine is displayed on a counter at a pharmacy in Portland, Ore., Monday, Dec. 27, 2021. U.S. regulators have granted full approval to Moderna’s COVID-19 vaccine after reviewing additional data on its safety and effectiveness. The decision Monday, Jan. 31, 2022 by the Food and Drug Administration comes after many tens of millions of Americans have already received the shot under its original emergency authorization. Full approval means FDA has completed the same rigorous, time-consuming review for Moderna’s shot as dozens of other long-established vaccines. (AP Photo/Jenny Kane)