U.S. health officials raise 'concern' about data from AstraZeneca's Covid vaccine trial

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Mar 23, 2021 U.S. health officials raise 'concern' about data from AstraZeneca's Covid vaccine trial Results from AstraZeneca's recent Covid-19 vaccine trial in the U.S. "may have included outdated information" that "provided an incomplete view of the efficacy data," a federal health body said early Tuesday.   The National Institute of Allergy and Infectious Diseases said that it had been notified late Monday about the "concern" by the data and safety monitoring board, a panel of independent experts that reviews safety and efficacy data for vaccines in the United States.   Read More Get the NBC News Mobile App Follow NBC News Check out all of NBCNEWS Newsletters here. Update Preferences | Unsubscribe | Contact | Privacy Update Preferences Unsubscribe Contact Privacy