The first dominant SARS‐CoV‐2 Omicron variant BA. 1 harbours 35 mutations in its Spike
protein from the original SARS‐CoV‐2 variant that emerged late 2019. Soon after its …

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 …

We address whether T cell responses induced by different vaccine platforms (mRNA-1273,
BNT162b2, Ad26. COV2. S, and NVX-CoV2373) cross-recognize early SARS-CoV-2 …

Immunological memory is the basis of protective immunity provided by vaccines and
previous infections. Immunological memory can develop from multiple branches of the …

Background Few data exist on the comparative safety and immunogenicity of different
COVID-19 vaccines given as a third (booster) dose. To generate data to optimise selection …

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

INTRODUCTION Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) mRNA
vaccines are highly effective at preventing infection and especially severe disease …

SARS-CoV-2 messenger RNA vaccination in healthy individuals generates immune
protection against COVID-19. However, little is known about SARS-CoV-2 mRNA vaccine …

The emerging SARS-CoV-2 variants of concern (VOCs) threaten the effectiveness of current
COVID-19 vaccines administered intramuscularly and designed to only target the spike …

Summary The SARS-CoV-2 Omicron variant (B. 1.1. 529) contains mutations that mediate
escape from antibody responses, although the extent to which these substitutions in spike …