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Prediction for the Infected compartment in Italy from 2021/03/22 to 2021/04/20. Data (magenta circles), prediction with β(t) calibrated in the last interval Δ4 (red dashed line) and prediction with β(t) interpolating the values of β in red and blue stars (blue continuous line). (a) SEIRDV_pwl (b) SEIRDV_pwe.
