Fig. 3From: The effect of travel restrictions on the geographical spread of COVID-19 between large cities in China: a modelling studyMedian daily incidence of COVID-19 (shaded areas indicate 50% and 95% confidence intervals) in Beijing, for Chunyun vs. non-Chunyun and cordon sanitaire imposed (red, solid) vs. no cordon sanitaire (blue, dashed) and for varying values of the effective reproduction number Re, where Re = 2.2 (no change, unmitigated local outbreak), reduced from 2.2 by 50% to 1.1 (mitigation of outbreak, Re > 1), and 75% to 0.55 (suppression of outbreak, Re < 1)Back to article page