A Logistic Curve in the SIR Model and Its Application to Deaths by COVID-19 in Japan
Approximate solutions of SIR equations are given, based on a logistic growth curve in the Biology. These solutions are applied to fix the basic reproduction number α and the removed ratio c, especially from data of accumulated number of deaths in Japan COVID-19. We then discuss the end of the epidemic. These logistic curve results are compared with the exact results of the SIR model.
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Copyright (c) 2022 Takesi Saito, Kazuyasu Shigemoto
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