Ren Meina helps Qi Wenxue, who is about to go on duty, put on his mask on Feb. 8, 2020. (Xinhua/Zhao Dongshan）

Qi chats with his wife in their new apartment after work on Feb.8, 2020.(Xinhua/Zhao Dongshan）

Qi’s wife helps disinfect him after he returns home from work on Feb.8, 2020.(Xinhua/Zhao Dongshan）

Qi (center) guides staff as they spray disinfectant on Feb. 8, 2020.(Xinhua/Zhao Dongshan）

Qi takes some time for a rest during the night shift on Feb.9, 2020.(Xinhua/Zhao Dongshan）

Qi (left) on night shift at the community duty point on Feb. 9, 2020.(Xinhua/Zhao Dongshan）

Qi collects information from community residents on Feb. 8, 2020.(Xinhua/Zhao Dongshan）