China used three protective regimes: “Slow-down measures, including testing, tracing, social distancing and patient hospitalization, were adopted in regions like Shanghai; shut-down measures, including testing, tracing, stay-at-home order for healthy people and closing recreational sites, were adopted in regions at the progressive stage; and lockdown measures were adopted in Wuhan and other cities in Hubei to break the transmission chain.”, PDF below, original post here: http://www.xinhuanet.com/english/2020-04/25/c_139005866.htm