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. Author manuscript; available in PMC: 2022 Nov 4.
Published in final edited form as: SIAM J Control Optim. 2022;60(2):S27–S48. doi: 10.1137/20m1353289

Fig. 3.

Fig. 3.

Plot of SEIR populations with parameters β = 1.1, α = 0.2, γ = 0.5. The new cases ΔI are denoted by the dashed curve (“Reports” in the legend). (a) Full plot on [0, 100]. (b) Magnification of (a), restricted to the time interval [0, 50]. (c) The blue curve is a plot of the ratio I(t)/E(t). Here I ≈ cE for the first 50 days, where c = 0.31, as calculated from (3.6). (Color available online.)