Natural Immunity

The presence of serum anti-SARS-CoV-2 IgA appears toprotect primary health care workers from COVID-19

Antigen-Specific Adaptive Immunity to SARS-CoV-2 in Acute COVID-19 and Associations with Age and Disease Severity

Children develop robust and sustained cross-reactive spike-specific immune responses to SARS-CoV-2 infection

Protection and waning of natural and hybrid COVID-19 immunity

mRNA vaccine-induced T cells respond identically to SARS-CoV-2 variants of concern but differ in longevity and homing properties depending on prior infection status

Prior COVID-19 protects against reinfection, even in the absence of detectable antibodies

A Systematic Review of the Protective Effect of Prior SARS-CoV-2 Infection on Repeat Infection

High-affinity memory B cells induced by SARS-CoV-2 infection produce more plasmablasts and atypical memory B cells than those primed by mRNA vaccines

Comparing SARS-CoV-2 natural immunity to vaccine-induced immunity: reinfections versus breakthrough infections

Necessity of COVID-19 vaccination in previously infected individuals