Pfizer-BioNTech Omicron shot more potent against new Covid variants Pfizer Inc and its German partner BioNTech SE said that their Omicron-tailored shot produced higher virus-neutralizing antibodies in older adults against the emerging sub-variant BQ.1.1 than its original vaccine.
Pfizer-BioNTech Omicron shot more potent against new Covid variants
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