On the afternoon of July 8, Beijing held the 145th regular press conference for the prevention and control of the new coronary pneumonia epidemic. Wu Zunyou, chief expert in epidemiology of the Chinese Center for Disease Control and Prevention, responded to the reporter's criteria for dividing high- and low-risk areas, and said that the division of high- and low-risk areas in Beijing is based on three dimensions:

  The first dimension is area, with streets and townships as the basic units; the second dimension is time, with a longest incubation period of 14 days as the unit of new coronary pneumonia; the third dimension is the epidemic situation, that is, how many cases there are, whether they have occurred Cluster epidemic.

  The specific criterion is whether there are new cases of pneumonia in a street within 14 days, and how many are there to determine its high, medium and low risk. In addition, the specific classification criteria must be adjusted in real time according to the epidemic situation and according to the changes in the epidemic situation. Beijing now has 1 high-risk and 18 medium-risk areas. This is for scientific prevention and control and precise implementation. It is necessary to effectively control the epidemic, but also not to have too much impact on the lives and work of the residents, and to control the impact of the epidemic on society at a minimum level. (Editing Zhou Jing)

Editor in charge: [Liu Xian]