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FDA advisers recommend using same strain for initial COVID vaccine and boosters

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A test tube labelled “COVID-19 Test Positive” and a vial labelled “VACCINE Coronavirus COVID-19” are seen in this illustration taken December 11, 2021. REUTERS/Dado Ruvic/Illustration

Advisers to the U.S. Food and Drug Administration on Thursday unanimously voted in favor of using the same coronavirus strain for the initial COVID-19 vaccine doses and the boosters, to simplify the vaccination regimen in the United States.