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. 2021 Sep 20;152:111427. doi: 10.1016/j.chaos.2021.111427

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Fig. 2 — (a) Susceptible individuals, (b) Exposed individuals, (c) Asymptomatic infectious individuals, (d) Symptomatic infectious individuals (e) Infectious individuals in isolation, (f) Recovered individuals. We take $ρ = 0$ and other parameter values as contained in Table 1 such that $R_{0} = 1.5128$ .