China News Service, Shanghai, September 24th (Reporter Zheng Yingying) On the occasion of the "National Science Popularization Day" event in Pudong New Area in 2022, Gao Fu, an academician of the Chinese Academy of Sciences, appeared at the Mozi Salon hosted by the Shanghai Research Institute of the University of Science and Technology of China on the 24th, with the audience. Share the topic of "Humans, Germs and Vaccines", and answer the "Three Questions" about the new crown vaccine that the public cares about.

　　One question: After the virus mutates, will the new crown vaccine still work?

　　After the new coronavirus mutates, will the vaccine still work?

Gao Fu said that the vaccine provides basic immunity, including four aspects: infection prevention, disease prevention, transmission prevention, severe disease prevention, and death prevention. "Although Omicron has mutated, our vaccine stimulates protection and greatly reduces infection prevention. There is a little discount on disease prevention, and a little discount on prevention of transmission, but the effect is very obvious in preventing severe illness and preventing death. So everyone must not disbelieve in vaccines.”

　　Second question: Is it necessary to keep vaccinating new-generation vaccines such as the fourth and fifth shots?

　　Some countries have also launched a new generation of vaccines against mutated viruses.

Is it necessary to keep getting new vaccines?

Gao Fu pointed out that it is the first time that humans have used vaccination to prevent coronavirus on such a large scale. Since it is the first time, there are many unknowns. Many decisions we make today are dynamic and will be based on further scientific research results. Decide what to do next, "The current data supports two shots followed by a booster shot, the (th) fourth shot, and even the (th) fifth shot. At present, our country's vaccinations follow the voluntary principle, and follow the It also adjusts dynamically over time.”

　　He also pointed out that vaccinations should be given "in small quantities" and "at certain intervals".

He gave an example. For example, the "Chaoyang masses" recognize bad guys by constantly recognizing them; our vaccines have a similar working principle, such as an injection every six months to wake up immune cells and let them recognize the new coronavirus.

　　Three questions: How do you view the side effects of vaccines?

　　Regarding the risk of vaccination and lung nodules, Gao Fu said that there is currently no evidence that there is a close relationship between the two.

But he also said that this vaccine has its own shortcomings, which raises a new question for young people (researchers), and we need to conduct good research on lung immunity in the future.

　　He said that human beings have always been seeking balance in their lives on the earth. For example, planes will crash, trains will derail, and walking will cause falls, but everyone has not denied them (because of possible risks).

We are facing such a large-scale epidemic now. Vaccines not only help us prevent the death or severe illness of individuals, but also help us protect groups from getting sick, so when humans have no other choice, we need vaccines.

　　It takes about ten years for ordinary vaccines to be developed and marketed. The rapid launch of the new crown vaccine has also caused some doubts and concerns in the outside world.

In this regard, Gao Fu said that this is demand-oriented. The rapid development and launch of the new crown vaccine is indeed related to the fact that the epidemic is too fierce and humans urgently need (vaccine), but on the other hand, this also proves that if we encounter another Similar epidemics, related vaccines and drugs can completely go through the "green channel".

　　"Humans should not forget that when science was backward, the Black Death (plague) wiped out half of the European population; today, the global epidemic prevention and control is not bad, and science has played a very important role." Gao Fu said.

(Finish)