In this image provided by the Serum Institute of India, vials of freshly manufactured Novavax COVID-19 vaccines wait to be labeled in 2022, in Pune, India. The more traditional kind of COVID-19 vaccine moved a step closer to the U.S. market Tuesday, June 7, 2022. Advisers to the Food and Drug Administration voted to back shots made by Novavax for U.S. adults. If the FDA ultimately agrees, Novavax's option could become the nation's fourth COVID-19 vaccine. (Serum Institute of India for Novavax via AP, File)