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. 2020 Oct 3;181:138–149. doi: 10.1016/j.matcom.2020.09.029

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© 2020 International Association for Mathematics and Computers in Simulation (IMACS). Published by Elsevier B.V. All rights reserved.

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Fig. 4 — Infected number $I$ , $b = η = 1$ (purple, continuous), $b = η = 0.9$ (brown, dotted) and $b = η = 0.5$ (blue, dot-dashed), for $R_{0} = 1.8$ .