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  • Mix-and-match Covid booster dose safe, boosts immunity: US NIH

    Mix-and-match Covid booster dose safe, boosts immunity: US NIH

    The findings, reported in The New England Journal of Medicine, showed that combinations of primary and booster vaccine resulted in increased neutralising antibody levels (ranging from 4.2- to 76-fold higher levels than those detected prior to boost.)

    January 27, 2022