In late 2020, after circulating for almost a year in the human population, severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2) exhibited a major step change in its …

Since the outbreak of the coronavirus disease 2019 (COVID-19) pandemic, there have been
a few variants of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), one of …

The Omicron, or Pango lineage B. 1.1. 529, variant of severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2) carries multiple spike mutations with high transmissibility and …

SARS-CoV-2 mRNA vaccination induces robust humoral and cellular immunity in the
circulation; however, it is currently unknown whether it elicits effective immune responses in …

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 …

The emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants
in the Omicron lineage has resulted in diminished Coronavirus Disease 2019 (COVID-19) …

Abstract The SARS-CoV-2 Omicron variant (B. 1.1. 529) has multiple spike protein
mutations, that contribute to viral escape from antibody neutralization,,–and reduce vaccine …

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 …

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

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