It’s possible a booster of the J&J vaccine may provide more protection from Omicron than from previous strains:
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UPDATE 2-J&J booster slashes Omicron hospitalisations -S.African study
A booster dose of Johnson & Johnson Inc's single-dose COVID-19 vaccine was 84% effective at preventing hospitalisation in South African healthcare workers who became infected as the Omicron variant spread, researchers said on Thursday. The real-world study, which has not been peer-reviewed, was...