China News Service, Beijing, May 26 (Xu Jing) Liu Xiaofeng, deputy director of the Beijing Center for Disease Control and Prevention, announced at a press conference on Beijing's epidemic prevention and control work on the 26th that as of 24:00 on May 25, 2022, the city has According to the assessment of the control center, in accordance with the "Beijing New Coronary Pneumonia Epidemic Risk Gra