Study: Booster vaccines reduced severe COVID outcomes
Pfizer
University of Bristol Feb 18 2026 Booster vaccines reduced the risk of COVID‑19–related hospitalization and death, according to a new study of over 3 million adults who had the autumn 2022 vaccine in England. The research led by the universities of Bristol and Oxford, provides further evidence of the effectiveness of booster vaccination against COVID-19. The study, published in Vaccine today [18 February], also found that this effectiveness was similar for Moderna (BA.1 mRNA-1273) and Pfizer-
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