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. 2020 Jul 28;140:110157. doi: 10.1016/j.chaos.2020.110157

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Fig. 5 — Steady-state solution of the system. From left to right, the three graphs report the evolution in the number of daily deaths for $k (t = 1),$ $\bar{k}$ and $k (t = 50)$ . Colours as per Fig. 3.