Du, Zhanwei; Xiaoke Xu; Lin Wang; Spencer J. Fox; Benjamin J. Cowling; Alison P. Galvani and Lauren Ancel Meyers
Cities across China implemented stringent social distancing measures in early 2020 to curb coronavirus disease outbreaks. We estimated the speed with which these measures contained transmission in cities. A 1-day delay in implementing social distancing resulted in a containment delay of 2.41 (95% CI 0.97-3.86) days.