[Explanation] Right now, the global new crown epidemic is still spreading. Imported cases have been found in many places in China, and small-scale epidemics have occurred locally.

How to deal with the spread risk brought by imported cases? Will there be a second wave of epidemics in winter?

Recently, Zhang Wenhong, director of the Department of Infectious Diseases at Huashan Hospital affiliated to Fudan University in Shanghai, accepted an exclusive interview with China News Agency "Focus on China" to answer these questions.

  [Explanation] Zhang Wenhong believes that this time the epidemic may continue for many years, and it is impossible to completely eliminate the imported epidemic.

In this case, we can only make adequate plans for the spread of the epidemic.

  [Concurrent] Zhang Wenhong, Director of the Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai

  We must always "run" in front of the virus.

For the first such index case, how was it discovered?

The first thing Shanghai did in the first half of this year (2020) was to expand the layout of fever clinics and fever sentinel clinics in Shanghai. Such a sensitive fever clinic system will always let you know about the first-ever The patient can be found in time.

  In the second step, what we did was to expand testing, centering on feverish persons and tracking close contacts.

In order to be able to "run" to the front of the virus, testing must be further expanded to track close contacts of close contacts. At the same time, with this index case as the core, the detection area must be expanded.

  [Explanation] Zhang Wenhong pointed out that in the face of the risk of the winter epidemic, the strategy of "dynamic zeroing" is the essence of prevention and control this year and even next year.

  [Concurrent] Zhang Wenhong, Director of the Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai

  You asked me if there were (no) cases in Shanghai, and I said yes, there is a local case.

You ask where is the Shanghai case?

I said you can't find him.

Why can't I find him?

Because this case is in a closed loop after we are isolated, and there are no (other) cases in the entire society.

So this is a "dynamic reset" strategy, which is the essence of our prevention and control this year (2020) and even next year (2021).

  [Explanation] Zhang Wenhong said that even if sporadic cases occur in individual areas of China, it does not mean that other cities must quarantine people from these places, but according to the level of our security code and health code, we will provide normal access. .

  [Concurrent] Zhang Wenhong, Director of the Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai

  I think a typical case of precision prevention and control first appeared in the new place in Beijing.

When dealing with this matter, Beijing adopted a strategy of precise prevention and control.

Because at that time, Beijing's prevention and control areas were divided into zones.

Everyone is based on the location of the surrounding patients in the new outbreak, marking it as a medium risk or a high risk.

  [Explanation] Zhang Wenhong emphasized that we still need to pay attention to the new coronavirus, and the decline in the global fatality rate does not necessarily mean that the virus's toxicity is weakened.

  [Concurrent] Zhang Wenhong, Director of the Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai

  On a global scale, there is another data called the weekly case fatality rate. You will see that it has also dropped. This can easily give everyone the illusion that the virus is not as poisonous as before.

  (Global) The diagnostic capabilities of various places are greatly improved. Many people who have no symptoms will be tested, and then many asymptomatic infections will be found.

In the early stage, our diagnostic capabilities could not cover asymptomatic people, so those who developed the disease in the early stage were all severely ill. The second reason is that the characteristics of this global epidemic are that of young people after the restart of society. Infections are the main cause, and their mortality rate is also low. Third, from January to the present 10 months, a large number of new crown rescue supplies worldwide have been continuously replenished.

  [Explanation] At present, all countries in the world are stepping up vaccine research and development. In this regard, Zhang Wenhong predicts that by the end of 2020 or early 2021, the world may start vaccination.

He said that human science and technology are constantly developing, and he is confident that the new crown epidemic will eventually be controlled.

  Wen Mengxin, Li Shuoxing and Qian Wei reporting from Beijing

Editor in charge: [Li Yuxin]