
Reported vs extrapolated prevalence of COVID-19, select locations, as of April 2020
McKinsey briefing note on COVID-19, population antibody surveys suggest that official counts of coronavirus are underestimating the true number of cases by a factor of five or more (although in several cases the methodology has been called into question). This statistic shows the reported prevalence and the extrapolated prevalence from sample-based testing in select locations as of April 29, 2020.
In a