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U.S. officials say AstraZeneca may have used outdated information in its vaccine trial

The company said that a preliminary analysis of data that has continued to roll in was consistent with what it had already reported. It promised an update within 48 hours.

Medical staff prepares an AstraZeneca coronavirus vaccine at a vaccine center in Ebersberg near Munich, Germany, on Monday.
Medical staff prepares an AstraZeneca coronavirus vaccine at a vaccine center in Ebersberg near Munich, Germany, on Monday.Read moreMatthias Schrader
    The Associated Press
    Updated 
    Published 
    The Associated Press