FILE - A patient waits to be called for a COVID-19 vaccination booster shot outside a pharmacy in a grocery store, on Nov. 3, 2021, in downtown Denver. U.S. regulators have opened up COVID-19 booster shots to all and more adults, Friday, Nov. 19, letting them choose another dose of either the Pfizer or Moderna vaccine. (AP Photo/David Zalubowski, File)
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