Credit: FILE - In this Wednesday, Oct. 7, 2020, file photo, a vial of the Phase 3 Novavax coronavirus vaccine is seen ready for use in the trial at St. George's University hospital in London. Novavax says its vaccine appears effective against COVID-19 in a large study, including against variants. Results from the study in the U.S. and Mexico were released on Monday, June 14, 2021. (AP Photo/Alastair Grant, File)

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