| Literature DB >> 36177870 |
Noam Barda1,2,3, Michal Canetti4,5, Mayan Gilboa4,5, Victoria Indenboim5,6, Keren Asraf5,7, Yael Weiss-Ottolenghi4,5, Sharon Amit5,8, Daniel Zibly4, Ram Doolman5,6, Ella Mendelson5,7, Dror Harats5,9, Laurence S Freedman10, Yitshak Kreiss5,9, Yaniv Lustig5,6, Gili Regev-Yochay4,5.
Abstract
We assess the immunogenicity and efficacy of Spikevax and Comirnaty as fourth dose COVID-19 vaccines. Six months post-fourth-dose, IgG levels were higher than pre-fourth dose at 1.58-fold (95% CI: 1.27-1.97) in Spikevax and 1.16-fold (95% CI: 0.98-1.37) in Comirnaty vaccinees. Nearly 60% (159/274) of vaccinees contracted SARS-CoV-2. Infection hazard ratios (HRs) for Spikevax (0.82; 95% CI: 0.62-1.09) and Comirnaty (0.86; 95% CI: 0.65-1.13) vaccinees were similar, as were substantial-disease HRs, i.e. 0.28 (95% CI: 0.13-0.62) and 0.51 (95% CI: 0.27-0.96), respectively.Entities:
Keywords: BNT162b2; COVID-19; boosters; immunogenicity; mRNA1273; vaccine efficacy
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Year: 2022 PMID: 36177870 PMCID: PMC9524052 DOI: 10.2807/1560-7917.ES.2022.27.39.2200701
Source DB: PubMed Journal: Euro Surveill ISSN: 1025-496X