China’s 1.4 billion people are averaging fewer than 100 cases of Covid-19 a day. All it takes is the willingness to shut down anything at any time.NPR’s Emily Feng explains from Beijing.Today’s show was produced by Miles Bryan, edited by Matt Collette, engineered by Efim Shapiro, fact-checked by Laura Bullard and hosted by Sean Rameswaram.Transcript at vox.com/todayexplainedSupport Today, Explained by making a financial contribution to Vox! bit.ly/givepodcastsLearn more about your ad choices. Visit podcastchoices.com/adchoices