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. 2023 Jan 26;11:1120470. doi: 10.3389/fpubh.2023.1120470

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Copyright © 2023 Cao, Li, Haihambo, Wang, Zhao, Wang, Sun, Guo and Han.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Temporal dynamics of the ongoing COVID-19 epidemic. (A) Raw data of the cumulative infected cases of COVID-19 is shown in black dots and the fitted curve of the model is shown in red, in the same time interval as the monkeypox epidemic. (B) Normalized fitted curves of model for 21 countries. (C) Distribution of growth rate (k). (D) Distribution of semi-saturation period (t₀). (E) Relationship between growth rate (k) and semi-saturation period (t₀).