Pfizer/BioNTech say updated Covid-19 booster generates ‘substantially higher’ protection against Omicron subvariants than original vaccine – CNN

Pfizer/BioNTech say updated Covid-19 booster generates 'substantially higher' protection against Omicron subvariants than original vaccine  CNN

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Pfizer/BioNTech say updated Covid-19 booster generates 'substantially higher' protection against Omicron subvariants than original vaccine - CNN

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