Pfizer, BioNTech say updated vaccines offer ‘substantially higher immune response’ against omicron

Pfizer, BioNTech say updated vaccines offer ‘substantially higher immune response’ against omicron Pharmaceutical and biotechnology companies Pfizer and BioNTech announced Saturday that updated versions of their vaccines that were adapted to the omicron variant of COVID-19 deliver a “substantial… cfolmar The Hill

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Studies “found that a booster dose of both Omicron-adapted vaccine candidates elicited a substantially higher immune response against Omicron BA.1 as compared to the companies’ current COVID-19 vaccine,” according to a press release from the companies, referring to the original omicron variant.

One of the updated vaccines is monovalent, targeting omicron alone, and the other is bivalent, combining the monovalent one with the companies’ vaccine targeting the initial COVID-19 strain. ...