On September 24, Gao Fu, an academician of the Chinese Academy of Sciences, shared with the public at the Mozi Salon.

China News Service, Shanghai, September 24 (Reporter Zheng Yingying) On the occasion of the 2022 Pudong New District "National Science Popularization Day" event, Gao Fu, an academician of the Chinese Academy of Sciences, appeared at the Mozi Salon hosted by Shanghai Research Institute of University of Science and Technology of China on the 24th, sharing the topic of "human, bacteria and vaccine" with the audience, and answering the "three questions" of the new crown vaccine that the public is concerned about.

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 immunization of , including four aspects: preventing infection, preventing disease, preventing transmission, preventing severe illness and death. "Although Omickron has mutated, our vaccine has greatly reduced the prevention of infection, a little discount on preventing disease, and a little discount on preventing transmission, but the effect is very obvious in preventing severe illness and preventing death. So everyone must not believe in vaccines."

Question 2: Is it necessary for the new generation of vaccines such as the fourth and fifth shots to be directly taken?

targets the mutated virus, and some countries have also launched a new generation of vaccines. Is it necessary to directly receive a new vaccine? 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 here. Many of the decisions we have made today are dynamic and will decide what to do next based on further scientific research results. "The current data supports two shots and then get a booster shot, another (the fourth) or even a fifth shot. At present, our country's vaccination follows the principle of voluntary treatment and will also undergo dynamic adjustments over time."

He also pointed out that vaccination requires "a small amount and multiple times" and "a certain time interval". He gave an example, for example, "Chaoyang people" recognize bad people by constantly recognizing them; our vaccine has similar principles of action, such as getting an injection every six months to awaken immune cells and let it recognize the new coronavirus.

Question 3: How do you view the side effects of vaccines?

Regarding the risk of vaccination and pulmonary nodules, Gao Fu said that there is currently no evidence to show 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 (scientific researchers). In the future, we must conduct good research on lung immunity.

He said that humans live on earth and have been seeking balance. For example, if they crash on a plane, take a train, they will derail, and fall when walking, but no one has denied it (by possible risks). We are now facing such a large-scale epidemic. Vaccines not only help us prevent individual deaths or severe illnesses, but also help us protect the group from illness. So when humans have no other choice, we just need vaccines. 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 fierce epidemic and the urgent need of human beings (vaccines). But on the other hand, this also proves that if a similar epidemic occurs again, related vaccines and drugs can completely follow the "green channel".

"Mankind should not forget that when science was backward, the Black Death (plague) destroyed half of the European population; today, the global new crown epidemic prevention and control was pretty good, and science played a very important role." Gao Fu said. (End)