China News Service, Beijing, November 16. Zhang Wenhong, director of the Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, pointed out that the current rapid development of vaccines shows that human science and technology are constantly developing. Therefore, he is very strong in the ultimate control of the new crown epidemic. confidence.

He also reminded that attention should be paid to the new coronavirus.

　　Zhang Wenhong recently accepted an exclusive interview with China News Agency "China Focus Face to Face" in Beijing.

Zhang Wenhong, director of the Department of Infectious Diseases at Huashan Hospital, Fudan University, Shanghai, accepted an exclusive interview with China News Agency "Focus on China".

Photo by China News Agency reporter Jiang Qiming

　　Speaking of vaccine research and development issues of public concern, Zhang Wenhong said that after a new infectious disease emerges, vaccine research and development are all developed under emergency conditions, and the speed will be accelerated.

The speed of research and development this time has been accelerated. In the history of human infectious diseases, it has been a regular and expedited research and development process, but now the technical force is better than before, so the research and development speed will be faster.

This shows that human science and technology are constantly developing, and it will only become faster and more precise at an unimaginable speed.

"It is precisely because of this that I have strong confidence that the new crown epidemic will eventually be controlled."

　　Zhang Wenhong predicts that at the end of this year or the beginning of next year, the world will basically begin to receive relevant vaccines.

　　Speaking of the topic that people feel that “the number of asymptomatic infections is increasing, and the number of deaths does not seem to be so many”, Zhang Wenhong said that the rate of increase in the number of cases is inconsistent with the rate of increase in deaths. In other words, The case fatality rate of new patients has declined globally; there is also a data called the weekly case fatality rate, which has also declined.

This can easily give everyone the illusion that the virus is not as poisonous as before.

　　He pointed out that the calculation model of case fatality rate is the key to the problem.

Diagnosis capabilities across the world are greatly improved. Many asymptomatic people will be tested, and many asymptomatic infections will be found.

In the early stage, the diagnosis ability cannot cover asymptomatic people, so the early onset of the disease is severe, and the fatality rate is naturally higher.

Now that asymptomatic people are also tested, the fatality rate will be very low. "This is normal because you are not selecting the same group of people."

　　Second, on a global scale, the population with the highest fatality rate is the elderly.

This high-risk group has begun to protect itself.

The case fatality rate of young people is inherently low. The global epidemic is characterized by (mainly) young people infected after the restart of society, but their case fatality rate is low.

　　Third, from January to now, COVID-19 rescue supplies worldwide have been continuously replenished.

Preventing and controlling the epidemic means fighting. The better the logistical support, the more successful the battle and the higher the success rate of patient rescue.

　　Zhang Wenhong also pointed out that it is often wrong to guess the cause of a phenomenon at will.

For example, now that the mortality rate has dropped, but if you are not in the medical system, it is easy to think that the virus is not as powerful as before.

　　Therefore, Zhang Wenhong emphasized that we still need to pay attention to the virus.

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