A medical staff member gestures at the entrance of an area under special management for COVID-19 in Huanggu District, Shenyang, northeast China's Liaoning Province, Jan. 7, 2021. Chinese cities are tightening control measures to tackle the resurgence of the novel coronavirus through the winter months following recent sporadic spikes in confirmed cases. Anti-epidemic workers stand fast at their positions regardless of the heavy wind and cold weather to support those in need. (Xinhua/Yao Jianfeng)