摘要
People take nucleic acid tests for the novel coronavirus disease(COVID-19)at the Chengdu No.1 People’s Hospital in Chengdu,Sichuan Province in southwest China,on December 9.The city tightened COVID-19 control measures after a domestically transmitted case was reported two days earlier.There had been eight confirmed cases and three asymptomatic cases as of December 11,local authorities said.
