Exploring the percentage of COVID-19 cases reported in the community in Canada and associated case fatality ratios.

ABSTRACT: While surveillance can identify changes in COVID-19 transmission patterns over time and space, sections of the population at risk, and the efficacy of public health measures, reported cases of COVID-19 are generally understood to only capture a subset of the actual number of cases. Our primary objective was to estimate the percentage of cases reported in the general community, considered as those that occurred outside of long-term care facilities (LTCFs), in specific provinces and Canada as a whole. We applied a methodology using the delay-adjusted case fatality ratio (CFR) to all cases and deaths, as well as those representing the general community. Our second objective was to assess whether the assumed CFR (mean = 1.38%) was appropriate for calculating underestimation of cases in Canada.

SUBMITTER: Dougherty BP 

PROVIDER: S-EPMC7718109 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature