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. 2020 May 23;136:109930. doi: 10.1016/j.chaos.2020.109930

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Fig. 2 — (Color online) Time evolution of the number of Infected (I), Quarantined (Q) and total confirmed cases (Q+R) predicted by the SIQR model, for the initial epidemic phase, obtained by the numerical integration of Eqs. (1)–(4) with $k_{0} = 0$ (no isolation policies). The parameters are $I_{0} = 8, β = 0.3194, η = α = 0.0206$ and $γ = 0.02$ .