Urban renewal
Residents wearing masks wait at a bus stop in Beijing Saturday, Sept. 18, 2021. China's "zero tolerance" strategy of trying to isolate every case and stop transmission of the coronavirus has kept kept the country where the virus first was detected in late 2019 largely free of the disease. (AP Photo/Ng Han Guan)
China keeps virus at bay at high cost ahead of Olympics

By Joe Mcdonald And Huizhong Wu Sep. 21, 2021 08:32 PM EDT