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Reuters
Reuters
Business
By Michael Erman

U.S. CDC still looking at potential stroke risk from Pfizer bivalent COVID shot

FILE PHOTO: A vial of the Pfizer-BioNTech coronavirus disease (COVID-19) booster vaccine targeting BA.4 and BA.5 Omicron sub variants is pictured at Skippack Pharmacy in Schwenksville, Pennsylvania, U.S., September 8, 2022. REUTERS/Hannah Beier/

New data from one U.S. Centers for Disease Control and Prevention (CDC) database shows a possible stroke risk link for older adults who received an updated Pfizer/BioNTech COVID-19 booster shot, but the signal is weaker than what the agency had flagged earlier in January, health officials said on Thursday.

U.S. Food and Drug Administration officials said they had not detected a link between the shots and strokes in two other safety monitoring databases.

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