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. 2017 Dec 29;58:47–64. doi: 10.1016/j.apm.2017.12.027

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Fig. 1 — Dashed line: susceptible population without optimal control. Solid line: susceptible population with optimal control. Weight constants are $B_{1} = 20, B_{2} = 100, B_{3} = 200, B_{4} = 100, B_{5} = 8000, B_{6} = 150,$ and other parameter values are presented in Table 1.