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Original title: Wu Zunyou: Confirmed cases in Qingdao are mainly concentrated in hospitals. The epidemic will not be too great. Source: CCTV News Client
As of 3:30 PM on the 14th, Qingdao has sampled more than 4.23 million nucleic acid tests and there are no new confirmed cases or asymptomatic infections. The 6 confirmed cases and 6 current asymptomatic infections are highly related to the Municipal Thorax Hospital.
What is the current status of the investigation? What do you think of the Qingdao epidemic? What kind of alarm clocks do we add to our prevention and control links? “News 1 + 1” connects with Wu Zunyou, chief epidemiology expert at the China Center for Disease Control and Prevention, and is concerned about the Qingdao epidemic. What questions and reminders are there?
(1) Qingdao epidemic has no new confirmed cases, does it mean that security has increased significantly?
(2) Confirmed cases in Qingdao are mainly concentrated in hospitals and the scale of the epidemic will not be too great
Wu Zunyou, chief epidemiologist at the Chinese Center for Disease Control and Prevention: When the Qingdao case happened, we were still quite concerned. Especially if the patient takes the initiative to visit the community clinic, it will be indicated that there must be a certain number of cases in the future, depending on how early or late the patient’s visit is. Judging from more information about the cases in Qingdao, it is mainly focused on hospitals. Based on the analysis of this information, the epidemic in Qingdao should not be like a new place in Beijing or on a scale like Xinjiang.
(3) Almost 2 million nucleic acid testers in Qingdao are negative. Will there be any chance of changing from negative to positive in the future?
Wu Zunyou, an epidemiology expert at the Chinese Center for Disease Control and Prevention: This concern is understandable, but from another perspective, the vast majority of people have no possibility of contacting those infected. These infected people are mainly in hospitals, and some of them will have some contact with the community, such as close contacts, these people are already in quarantine. For those who don’t have isolation management, your risk should be very low.
(4) All Qingdao taxi drivers tested negative in close contact How do you deal with this case?
Wu Zunyou, epidemiology expert at the China Centers for Disease Control and Prevention: I am particularly concerned about the case of the taxi driver, and I especially learned about this case from the doctors who treated the patients in Qingdao. The taxi driver was still asymptomatic when a positive nucleic acid was first detected, today it was referred to as a confirmed case, which means that the taxi driver has gone from an asymptomatic infection to a confirmed case. This change shows that the taxi driver is in the initial stage of infection. From the perspective of the new crown detoxification epidemic law, detoxing the patient one to two days before the onset of symptoms and 5 days after the onset of symptoms is contagious. Before its discovery on the 11th, its role as a source of infection was very limited. After the discovery of the 11th, he has been quarantined. It must be said that the scope of its greatest spread is very limited, not as terrible as originally imagined.
(5) How to treat the six confirmed cases in Qingdao and the three severe cases?
Wu Zunyou, epidemiology expert at the Chinese Center for Disease Control and Prevention: From two perspectives: ①The number of cases is too small, 6 cases and 3 are serious. Although it is calculated as 50%, this proportion is too small to explain the problem. ②The epidemic occurred in a hospital and most of these patients suffer from lung diseases.
Our analysis of the epidemic situation also found that among the four types of mild, normal, severe and critical, if patients have basic illnesses, especially those with basic illnesses such as lungs, liver, kidneys and cardiovascular diseases, they are seriously ill. The proportion will be high. This also suggests that this situation in the hospital does not mean that the severity or pathogenicity of the virus in this epidemic has increased.
(6) Remember! These aspects of closed-loop management of imported cases abroad require special attention
Wu Zunyou, chief epidemiologist at the Chinese Center for Disease Control and Prevention: For handling imported cases abroad, there are designated hospitals or designated hospitals in various locations. As for designated hospitals, some are dedicated to receiving COVID-19 and some are receiving imported cases of COVID-19 while also providing services to other patients in society. If it is an independent and dedicated service for new crown cases, it is a complete closed circuit, and it must be said that the risk is relatively small.
If you also provide services to other patients in the society, is the ward division in the hospital strictly isolated? Is there an overlap in some large-scale equipment? It is best to be isolated and independent. Large-scale equipment should not be cross-used, and there should be regular disinfection measures for these rooms and the instruments themselves to prevent and reduce cross-contamination.
(7) Do 4 million people travel to Qingdao during Golden Week need nucleic acid tests?
Wu Zunyou, chief epidemiologist at the Chinese Center for Disease Control and Prevention: Not necessary. Judging from the current testing situation, the epidemic is mainly confined to the local chest hospital area. For the vast majority of comrades who travel to Qingdao on National Day, they have no chance of coming into contact with these patients. But one thing to remember is that if you have taken a taxi in the area where the hospital is located and you have a taxi bill, it is important to verify that it is the taxi service provided by the confirmed patient. For other travelers, there is no need to worry too much, if you are really concerned, you can take the initiative to do a nucleic acid test at a nearby medical institution.
(8) Can you relax the control of foreign imports? Not in China in the near future!
Wu Zunyou, epidemiology expert at the Chinese Center for Disease Control and Prevention: I have also noticed that a recent broadcast in new media called the world’s top three epidemiologists launched an (initiative) endorsed by many experts, saying that countries around the world should not adopt Blockade measures have been taken and must be released. It is understandable that other countries propose such a measure, and the situation of the global epidemic is very little optimistic. After entering October, the number of single-day reports has set a new record, topping 350,000. There has never been a single day of more than 350,000 before September. It is understandable that these countries have set out to relax control. But for our country, there is no way to accept the strategy of lifting the blockade, at least for this period, it is unacceptable in such an epidemic situation. If we look at the global number of epidemics and deaths according to the average number, if we do not take current measures, the number of infections in China will reach 7 million and the number of deaths will reach 200,000. Therefore, this strategy is impossible for China to adopt, at least not in the recent period.
【Edit: Liu Huan】
