Journal article

Robust estimates of the true (population) infection rate for COVID-19: a backcasting approach

Steven J Phipps, R Quentin Grafton, Tom Kompas

Royal Society Open Science | ROYAL SOC | Published : 2020

Abstract

Differences in COVID-19 testing and tracing across countries, as well as changes in testing within each country over time, make it difficult to estimate the true (population) infection rate based on the confirmed number of cases obtained through RNA viral testing. We applied a backcasting approach to estimate a distribution for the true (population) cumulative number of infections (infected and recovered) for 15 developed countries. Our sample comprised countries with similar levels of medical care and with populations that have similar age distributions. Monte Carlo methods were used to robustly sample parameter uncertainty. We found a strong and statistically significant negative relations..

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University of Melbourne Researchers