id author title date pages extension mime words sentences flesch summary cache txt cord-340369-y8o5j2be Zhang, Juanjuan Age profile of susceptibility, mixing, and social distancing shape the dynamics of the novel coronavirus disease 2019 outbreak in China 2020-03-20 .txt text/plain 2534 121 45 To estimate changes in age-mixing patterns associated with COVID-19 interventions, we performed contact surveys in two cities, Wuhan, the epicenter of the outbreak, and Shanghai, one of the largest and most densely populated cities in southeast China. Based on the estimated age-specific mixing patterns and susceptibility to COVID-19 infection, we developed a SIR model of SARS-CoV-2 transmission and tested the impact of social distancing measures on disease dynamics. preprint (which was not certified by peer review) is the author/funder, who has granted medRxiv a license to display the preprint in The copyright holder for this this version posted March 20, 2020. preprint (which was not certified by peer review) is the author/funder, who has granted medRxiv a license to display the preprint in The copyright holder for this this version posted March 20, 2020. ./cache/cord-340369-y8o5j2be.txt ./txt/cord-340369-y8o5j2be.txt