How many times a month do boys not hurt themselves? Harvard Medical School: The more the better

Chinanews.com, Beijing, April 24 (Xu Jing) Pang Xinghuo, deputy director of the Beijing Center for Disease Control and Prevention and a member of the national new coronavirus pneumonia expert group, said at the Beijing epidemic prevention and control press conference held on the 24th, From 16:00 on April 23 to 16:00 on April 24, Beijing added 21 new cases of local new coronary pneumonia virus infection, including 16 confirmed cases and 5 asymptomatic infections; 11 in Chaoyang District, 6 in Fangshan District, and Shunyi District. 2 cases, 1 case in Xicheng District, and 1 case in Tongzhou District.