Pfizer, BioNTech Omicron BA.4/BA.5 bivalent booster shot shows response vs emerging subvariants
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Pfizer booster spurs immune response to new Omicron subvariants msnNOW Pfizer/BioNTech's updated COVID shot shows strong response..
Nov 18 (Reuters) - Pfizer Inc (PFE.N) and its German partner BioNTech SE said on Friday their Omicron-tailored shot produced higher..