The Contribution of the Age Distribution of Cases to COVID-19 CaseFatality Across Countriies

Coronavirus disease 2019 (COVID-19) has led to unprecedented disruptions to health systems and individuals’ social, psychological, and economic lives. As the number of COVID-19 cases continues to increase worldwide, individuals are being exposed to a continuous flow of information (and misinformation) about the disease. The lethality of COVID-19 in particular is highly discussed by the news media and general public, especially because wide differences have emerged in the COVID-19 case fatality rate (CFR) across countries. This wide variation has contributed to confusion among the general public and also among scientists and policymakers as to how fatal infection with severe acute respiratory syndrome coronavirus (SARS-CoV-2) really is A large part of the variation in CFRs across countries may be due to the ages of individuals who are tested and identified. One consistent pattern across countries is that the COVID-19 CFR rises sharply over age.

The Contribution of the Age Distribution of Cases to COVID-19 Case Fatality Across Countries
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