Effects of Proactive Social Distancing on COVID-19 Outbreaks in 58 Cities, China
Zhanwei Du, Xiao-Ke Xu, Lin Wang, Spencer J. Fox, Benjamin J. Cowling, Alison P. Galvani, Lauren Ancel Meyers
Abstract
Our report has limitations. Our sample size of asymptomatic cases is small, and follow-up was short. Recall bias of exposure history is another limitation; in the absence of clear symptom onset, asymptomatic persons might be less likely to accurately recall exposures than persons with symptoms. Finally, that the study took a place during the post-peak period of the epidemic in Wuhan, so contacts could have been seropositive already; those tested were seronegative, but most contacts did not have serologic testing.
Topics & Concepts
Social distanceOutbreakCoronavirus disease 2019 (COVID-19)ChinaSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2)Transmission (telecommunications)2019-20 coronavirus outbreakDistancingPandemicVirologyEnvironmental healthCoronavirusGeographyMedicineSocioeconomicsBusinessDiseaseComputer scienceSociologyInfectious disease (medical specialty)ArchaeologyPathologyTelecommunicationsCOVID-19 epidemiological studiesCOVID-19 Pandemic ImpactsCOVID-19 and Mental Health