FIG. 4. Region-dependence of COVID-19 mortality-ratio estimates.

Mortality-ratio estimates of COVID-19 in different regions (see Eqs. (8) and 14 (τ_res = 0)). We used data on the cumulative number of cases, recoveries, and deaths in Ref. [5] as of March 24, 2020. The marker sizes indicate the population of the corresponding countries. The metrics $M_{\text{p}}^0(t)$ and and CFR are largely uncorrelated with correlation coefficient 0.33.