The evolution of SARS-CoV-2 seroprevalence in Canada: a time-series study, 2020–2023

This dataset contains population level infection-acquired and vaccine-induced seroprevalence estimates stratified by geography (Canada or by province) and age. Data were compiled from 7 provincial and pan-Canadian research studies collaborating with the CITF, sampling from the general population. Trends in SARS-CoV-2 seroprevalence owing to infection and vaccination for the Canadian population were then estimated using a time-series approach. Seroprevalence was also estimated by geographical region and age. The analysis was conducted using a Bayesian framework and generalized linear multilevel models for β-binomial distributed outcomes.