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When the Foundations Are Wobbling, Part I

April 27, 2020 • Posted in Blog


The Denominator of Death Rates

D. Joy Riley, M.D., M.A. Executive Director

How many people in the U.S. have died of SARS-CoV-2 infection, or COVID-19? That is difficult to say, and not for lack of numbers on the website of the Centers for Disease Control and Prevention (CDC). The case fatality rate for a particular disease is, basically, the number of persons dying of a disease, divided by the number of persons who have the disease, and multiplied by 100, to give an answer in terms of percentage:

# persons dying of COVID-19 disease X 100 # persons infected with SARS-CoV-2

How is this complicated? more