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. 2022 Oct 4;85(12):1145–1153. doi: 10.1097/JCMA.0000000000000820

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Fig. 5 — Nonlinear least-squared curve fitting method. The cumulative confirmed infections (observations: black dot) and predicted infectious population (by SIR model choosing different step sizes: ∆t = 1, 0.5, 0.1, 0.05, 0.01 day respectively) of the Diamond Princess cruise ship are shown together for comparison.