A large body of evidence generated in the last two and a half years addresses the roles of T
cells in SARS-CoV-2 infection and following vaccination. Infection or vaccination induces …

Neutralizing antibodies are known to have a crucial role in protecting against SARS-CoV-2
infection and have been suggested to be a useful correlate of protection for vaccine clinical …

Background The safety and immunogenicity of the bivalent omicron-containing mRNA-
1273.214 booster vaccine are not known. Methods In this ongoing, phase 2–3 study, we …

Abstract Coronavirus Disease 2019 (COVID-19) has been the most severe public health
challenge in this century. Two years after its emergence, the rapid development and …

A Covid-19 Milestone Attained — A Correlate of Protection for Vaccines | New England Journal of
Medicine Skip to main content The New England Journal of Medicine homepage Advanced …

The rapid spread of the SARS-CoV-2 Omicron variant suggests that the virus might become
globally dominant. Further, the high number of mutations in the viral spike protein raised …

Covid-19 Vaccines — Immunity, Variants, Boosters | New England Journal of Medicine Skip to
main content The New England Journal of Medicine homepage Advanced Search SEARCH …

During the SARS-CoV-2 pandemic, novel and traditional vaccine strategies have been
deployed globally. We investigated whether antibodies stimulated by mRNA vaccination …

Abstract The Omicron (B. 1.1. 529) variant of severe acute respiratory syndrome coronavirus
2 (SARS-CoV-2) was initially identified in November 2021 in South Africa and Botswana, as …

The severe acute respiratory distress syndrome coronavirus 2 (SARS-CoV-2) Omicron
variant is spreading rapidly, even in vaccinated individuals, raising concerns about immune …