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. 2020 Dec 30;512:110568. doi: 10.1016/j.jtbi.2020.110568

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Fig. 6 — Optimal testing strategy $σ (t)$ as a function of time in the absence of a social distancing strategy. (a) Calculated optimal testing strategy. (b) Corresponding cumulative infectious individuals. (c) Corresponding daily incidences of infection without controls and with the optimal testing strategy.