Systematic literature review of SARS-CoV-2 seroprevalence surveys in Canada through April 2021.

ABSTRACT:

Objectives

To estimate the proportion of the population infected by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) in Canada through April 2021, 16 months into the coronavirus disease 2019 (COVID-19) pandemic and 4 months after COVID-19 vaccines became available.

Methods

Publication databases, preprint servers, public health databases and the grey literature were searched for seroprevalence surveys conducted in Canada from 1 November 2019 to 10 July 2021. Studies were assessed for bias using the Joanna Briggs Checklist. Numbers of infections derived from seroprevalence estimates were compared with reported cases to estimate under-ascertainment ratios.

Results

In total, 12 serosurveys with 210,321 participants were identified. Three (25%) serosurveys were

SUBMITTER: Major M 

PROVIDER: S-EPMC9335354 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature