Background Genetically distinct viral variants of severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2) have been recorded since January 2020. The introduction of …

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 …

Substantial Neutralization Escape by SARS-CoV-2 Omicron Variants BQ.1.1 and XBB.1 | New
England Journal of Medicine Skip to main content The New England Journal of Medicine …

Breakthrough infections with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-
2) variants have been reported frequently in vaccinated individuals with waning immunity. In …

Pronounced immune escape by the SARS-CoV-2 Omicron variant has resulted in many
individuals possessing hybrid immunity, generated through a combination of vaccination …

Genetically distinct viral variants of severe acute respiratory syndrome coronavirus 2 (SARS-
CoV-2) have been recorded since January 2020. Over this time global vaccine programs …

Although the Omicron variant of the SARS-CoV-2 virus shows resistance to neutralizing
antibody, it retains susceptibility to the cellular immune response. Here we characterize …

The waning humoral immunity and emerging contagious severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2) variants resulted in the necessity of the booster vaccination of …

Summary The SARS-CoV-2 Omicron variant has evolved into four sub-lineages—BA. 1, BA.
1.1, BA. 2, and BA. 3—with BA. 2 becoming dominant worldwide. We and others have …

Anti-viral immunity continuously declines over time after SARS-CoV-2 infection. Here, we
characterize the dynamics of anti-viral immunity during long-term follow-up and after …