Mixed jabs boost COVID antibodies: study

By Sangmi Cha
Updated July 26 2021 - 6:20pm, first published 6:15pm
A South Korean study shows mixed jabs of AstraZeneca then Pfizer boosts antibody levels.
A South Korean study shows mixed jabs of AstraZeneca then Pfizer boosts antibody levels.

A mixed vaccination of first AstraZeneca and then a Pfizer COVID-19 shot boosted neutralising antibody levels by six times compared with two AstraZeneca doses, a study from South Korea shows.

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