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FDA says single-dose shot from J&J prevents severe COVID
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FDA says single-dose shot from J&J prevents severe COVID

by Lauran Neergaard and Matthew Perrone  This Dec. 2, 2020 photo provided by Johnson & Johnson shows vials of the Janssen COVID-19 vaccine in the United States. Johnson & Johnson’s single-dose vaccine protects against COVID-19, according to an analysis by U.S. regulators Wednesday, Feb. 24, 2021, that sets the stage for a final decision on...