id author title date pages extension mime words sentences flesch summary cache txt cord-321104-0rk1ef53 Etchenique, R. Estimate of the actual number of COVID-19 cases from the analysis of deaths. 2020-09-23 .txt text/plain 3385 179 60 Using the calculated values for the Infection Fatality Rate (IFR) of COVID-19 it is possible to estimate the prevalence of cases of infection in the city of Buenos Aires, Argentina, throughout the pandemic. By having the fraction of IgG positive in each age range, and the data on deaths due to COVID-19, which are more reliable than confirmed cases (despite possible undercounts, vide infra) it is possible to determine the Infection-Fatality Ratio (IFR) for each age range. Although this number of estimated actual infections can be entered in a single day, in that case the temporary values obtained will be noisy, especially for the age ranges of lower IFR. Using the loglinear expression for the corrected IFR, the prevalence values of Figure 11b are obtained, more in accordance with the observed slope in cases and death curves. b) Accumulated prevalence at 31/8/2020 in the Autonomous City of Buenos Aires according to age range, estimated from IFR values using excess deaths values. ./cache/cord-321104-0rk1ef53.txt ./txt/cord-321104-0rk1ef53.txt