Passengers take subway line No. 3 in Nanjing, east China's Jiangsu Province, Aug. 20, 2021. Nanjing, which witnessed the country's latest resurgence of coronavirus cluster infections attributable to the Delta variant, cleared all medium- and high-risk areas for COVID-19 on Thursday.Photo:Xinhua
Passengers take subway line No. 3 in Nanjing, east China's Jiangsu Province, Aug. 20, 2021. Nanjing, which witnessed the country's latest resurgence of coronavirus cluster infections attributable to the Delta variant, cleared all medium- and high-risk areas for COVID-19 on Thursday.Photo:Xinhua
Passengers take subway line No. 1 in Nanjing, east China's Jiangsu Province, Aug. 20, 2021.Photo:Xinhua
Passengers take subway line No. 1 in Nanjing, east China's Jiangsu Province, Aug. 20, 2021.Photo:Xinhua
A passenger shows health code to a staff member in subway line No. 1 in Nanjing, east China's Jiangsu Province, Aug. 20, 2021. Nanjing, which witnessed the country's latest resurgence of coronavirus cluster infections attributable to the Delta variant, cleared all medium- and high-risk areas for COVID-19 on Thursday.Photo:Xinhua