【Explanation】During the New Coronary Pneumonia Epidemic, how does Beijing divide high, medium and low risk areas? Is the location of the diagnosed patient based on the place of residence or the place of activity at the time of diagnosis? On July 8, at the 145th New Coronary Pneumonia Epidemic Prevention and Control Conference in Beijing, Wu Zunyou, chief expert of epidemiology at the Chinese Center for Disease Control and Prevention, responded to these questions.

  [Explanation] Wu Zunyou said that Beijing is based on the three dimensions of geographical, time and epidemic situation to measure different risk areas.

  [Same period] Wu Zunyou, chief expert of epidemiology, Chinese Center for Disease Control and Prevention

  The first dimension is about the region, then the region is based on streets and townships; the second dimension is time, which is based on a longest incubation period of 14 days for new coronary pneumonia; the third dimension is the epidemic situation. How many cases have there been clustered epidemic outbreaks From these three dimensions, for a street and township, determine its high, medium, and low risk. The specific standard is the number of new coronary pneumonia cases in a street within 14 days, how many are there to determine its high, medium and low risk. .

  [Commentary] As of 15:00 on July 7, Beijing still has one high-risk area and 18 medium-risk areas. Wu Zunyou said that Beijing’s epidemic risk classification criteria helped to control the impact of the epidemic on society to a minimum.

  [Explanation] Regarding the patient's location information, Wu Zunyou said that the notification should be made according to the area where the patient's medical institution is located. At the same time, the place of residence should be recorded and notified to the relevant department of the residence area. There must be good communication between the two places to keep track of the patient's actions to ensure that the epidemic is under control.

  [Same period] Wu Zunyou, chief expert of epidemiology, Chinese Center for Disease Control and Prevention

  If the place of residence of the (patient) is different from the area where the medical unit he was visiting, how can he come to a unified caliber and how to report? That involves reporting according to the region where the medical institution is located. At the same time, the patient’s area of ​​residence and the relevant department of the area of ​​residence shall be recorded for notification. So what is the most important thing in this situation? It is necessary to grasp the trajectory of this patient's actions in the past period of time, and be able to identify all the close contacts he has contacted, and investigate and track the close contacts to ensure that the epidemic does not spread.

  [Commentary] According to reports, on July 7, Beijing has no new reports of locally confirmed cases, suspected cases, and asymptomatic infections, and 13 cases of discharge were cured. Since the cluster epidemic occurred on the Xinfa wholesale market on June 11, Beijing has reported a total of 335 locally diagnosed cases, 307 cases treated in hospital, 28 cases cured and discharged, and 31 cases of asymptomatic infections still under observation.

  Reporter Shan Lu from Beijing

Editor in charge: [Liu Xian]