Epidemic prevention staff conduct disinfection at the Ronghui residential compound in Daxing's Tiangongyuan subdistrict, Beijing, capital of China, Jan. 25, 2021. The COVID-19 risk classification of the Ronghui residential compound, where several locally transmitted COVID-19 cases had been detected recently, was upgraded to high-risk on Jan. 20. (Xinhua/Sun Ruibo)
