A staff member of epidemic prevention and control passes on take-out for a resident at the entrance of a residential compound in Huanggu District, Shenyang, northeast China's Liaoning Province, Jan. 4, 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)