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. 2021 Nov 25;175:121387. doi: 10.1016/j.techfore.2021.121387

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Fig. 4 — (a) Time evolution of the total number of Covid-19 cases since March 12, 2020, up to Sep 27, 2021, and (b) daily number of cases for the same time span. The red line in (a) represents the results from our six logistic growth modeling extrapolated to the entire time range from day 1 (January 22, 2020) up to day 700 (Dec 21, 2021), while in (b) it corresponds to the time derivative of the six logistic growth model displayed in (a).