Experts: Too soon to know if COVID-19 vaccine booster needed
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(FILES) In this file photo RN Valerie Massaro administers the second dose of the Pfizer/BioNTech vaccine to health care workers, Twenty-one days after they received their first shot from Hartford HealthCare at the Hartford Convention Center in Hartford, Connecticut on January 4, 2021. - Sales of the Covid-19 vaccine developed by Pfizer and BioNTech could reach up to $15 billion in 2021 and go higher if Pfizer signs additional supply contracts, Pfizer said on February 2, 2021. The projections came as Pfizer reported fourth-quarter and full-year profits and released forecasts for 2021. Pfizer projected full-year 2021 sales of between $44.4 to $46.4 billion, excluding sales for the Covid-19 vaccine. (Photo by Joseph Prezioso / AFP) (Photo by JOSEPH PREZIOSO/AFP via Getty Images)JOSEPH PREZIOSO / AFP via Getty Images
Experts: Too soon to know if COVID-19 vaccine booster needed
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Experts: Too soon to know if COVID-19 vaccine booster needed
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