Zhang Wenhong, director of the National Center for Infectious Diseases Medicine, talks about the fourth vaccination. Do people in China need a fourth dose of vaccine?

Zhang Wenhong, director of the National Center for Infectious Diseases Medicine, talked about the fourth vaccination. People in China don't need a fourth shot. According to the research of American scientists, too many vaccinations in COVID-19 may lead to immune system fatigue, and it is more likely to be infected with COVID-19 virus. Director Zhang Wenhong said that according to the epidemic situation of COVID-19 in China, three doses of COVID-19 vaccine have been widely inoculated in China, and the immune antibody concentration in COVID-19 has been good, so there is no need to vaccinate the fourth dose of COVID-19 vaccine. Since the third dose of vaccine was popularized in COVID-19, many friends will question whether they will get the fourth dose of vaccine booster. Zhang Wenhong expressed his personal opinion on this matter. He believes that the fourth dose of vaccine has not been popularized in the world, and it is too early to put forward the fourth dose of booster vaccine. Moreover, too many times of vaccination may make people's immune system tired, which is not good for overall epidemic prevention.

First of all, people are more susceptible to COVID-19 virus because of fatigue of the immune system.

The human immune system has a certain ability of self-repair, and if vaccination continues, immune failure may occur. Is this what people often say? Extremes must be reversed? Too many times of vaccination with COVID-19 vaccine not only can't achieve good immune effect, but also may lead people into immune fatigue crisis. It is too early to say that the fourth dose of vaccine will be popularized in China unless hospital research is needed to think that the fourth dose of vaccine is of great benefit to group immunity.

Second, the domestic three needles have reached a good antibody concentration, so there is no need to waste too many medical resources.

China has a large population, and most people have received three doses of COVID-19 vaccine. Judging from the immune effect on the epidemic situation, the probability of serious infection is relatively low, and people are farther away from the collective immune barrier. The fourth dose of vaccination can be applied in high-risk emergency areas, and the general population does not need the fourth dose of vaccination.

So, which countries do you think are likely to take the lead in the fourth vaccination in the world?