Purpose To investigate the robustness and longevity of SARS-CoV-2 immune responses
conferred by natural infection and vaccination among priority populations such as …

Background Predictors of COVID-19 vaccine immunogenicity and the influence of prior
severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection require …

Understanding the trajectory, duration, and determinants of antibody responses after SARS-
CoV-2 infection can inform subsequent protection and risk of reinfection, however large …

Background: SARS-CoV-2 antibody levels can be used to assess humoral immune
responses following SARS-CoV-2 infection or vaccination, and may predict risk of future …

Objective A better understanding of the immune response against severe acute respiratory
syndrome coronavirus-2 (SARS-CoV-2) infection is critical to predict its dynamics within the …

Background Prospective population-based studies investigating multiple determinants of pre-
vaccination antibody responses to SARS-CoV-2 are lacking. Methods We did a prospective …

Introduction High levels of immunity to SARS-CoV-2 in the community correlate with
protection from COVID-19 illness. Measuring COVID-19 antibody seroprevalence and …

Background The PRECISE Study, a multi-phase cross-sectional seroprevalence study of
anti-SARS-CoV-2 antibodies in Irish healthcare workers (HCW) investigated:(1) risk factors …

Real-world data on antibody response post-vaccination in the general population are
limited. 45,965 adults in the UK's national COVID-19 Infection Survey receiving Pfizer …

SARS-CoV-2 antibody quantity and quality are key markers of humoral immunity. However,
there is substantial uncertainty about their durability. We investigated levels and temporal …