Face-to-face丨The experts respond to these questions about the new crown vaccine one by one
Our country is currently accelerating the new crown vaccination in key areas, key populations, and key cities in accordance with the sequence of steps.
As of 24:00 on April 10, a total of 164.471 million doses of the new crown vaccine have been reported nationwide.
In response to the situation regarding the prevention and control of the new crown epidemic and vaccination, "Face to Face" interviewed Wang Huaqing, chief expert of the China Centers for Disease Control and Prevention's immunization program.
The largest national daily reporting system in the history of human vaccination
From March 24, China has launched a daily reporting system for COVID-19 vaccination data. The National Health Commission publishes the total number of vaccinations on its official website every day. This is the first time in the history of human vaccination that the country has launched the largest daily reporting system at the national level.
Reporter: According to our vaccination setting and plan, what is the current vaccination situation at a time point?
Wang Huaqing: To build an immune barrier in our country, it may require more than 1 billion people to be vaccinated against the new crown vaccine. The higher the inoculation rate, the stronger the immune barrier will be formed. We still have a way to go.
How safe is the new crown vaccine?
Although in the past week, the number of domestic new crown vaccines has increased rapidly from three to four million to 7 million in a single day, it is still relatively low compared with some countries with an inoculation rate of 40% or even 60%. Low level.
Reporter: The new crown vaccine is completed at a very fast speed from research and development to production and application. We know that it takes about five to ten years to develop a conventional vaccine to reach the application level. So many people are worried about the safety of the new crown vaccine?
Wang Huaqing: The research and development of the new crown vaccine has gone through pre-clinical and clinical phases 1, 2, and 3 before it is marketed. After the market is launched, research will be conducted, which guarantees the safety of the vaccine.
Reporter: Is the safety performance of this vaccine developed beyond normal rules 100% safe?
Wang Huaqing: Any vaccine has its risks. We are now using this vaccine to have adverse reactions or severe allergic reactions, which is one in a million data, but compared to the 2% mortality rate of new coronary pneumonia, we It can be seen that the harm caused by the new crown is very large, and we can also take some measures to minimize the risk of the vaccine.
Do I need to wait for the new crown vaccine?
There are still people in China who are on the sidelines of the vaccine, entangled in whether it is necessary to fight or question whether it can be used, at least 70 countries and regions around the world have approved the use or agreed to purchase the Chinese vaccine, and many foreign leaders have vaccinated early China vaccine.
However, due to the strong domestic epidemic control, some people are still waiting and watching and expect better vaccines to appear.
Reporter: Everyone thinks that since we may do better in the future, and the current situation is not so urgent, can I postpone the vaccine for a while, which might be better for me personally?
Wang Huaqing: Everyone is delaying this vaccination, then our immune barrier will never be established. Our desire to remove the mask may not become a reality. If everyone is vaccinated soon, this barrier will come one day sooner. You can return to the normal life of the past sooner.
Reporter: But many people will also say why should I rush to the front?
Wang Huaqing: There is still a problem. Everyone is also very concerned about virus mutation. If the disease continues to spread, the rate of virus mutation will increase. Correspondingly, the infectiousness of the disease will also increase. In severe cases, the vaccine may be used. Ineffective, so the best way to prevent the virus from mutating faster is to vaccinate.
After being vaccinated, we have immunity, we can no longer serve as a source of infection, and the virus can no longer spread.
Can the new crown vaccine deal with virus mutation?
The new crown epidemic was declared by the World Health Organization as "the most serious global public health emergency in history", and the new crown virus that caused this epidemic is called by experts as the most cunning virus known to mankind. It is highly contagious and has a fatality rate. High, and it is constantly mutating.
Reporter: You just talked about the possibility of virus mutation. Can we effectively prevent and control the vaccine and form an immune barrier?
Wang Huaqing: Although we have seen the mutation of the virus, it seems that vaccination is still useful at present.
In view of the virus mutation, scientists from various countries are currently trying to monitor the mutation, and find corresponding solutions for those that may affect the effect of the vaccine.
Why is it still diagnosed after vaccination?
On March 18, a doctor in Xi'an City was diagnosed with a new crown pneumonia case after he had already completed two injections of the new crown vaccine.
In this regard, Wang Huaqing introduced that the best effect of the vaccine is to prevent infection. The new crown vaccine has the effect of preventing infection and disease, and the effect of preventing severe illness is higher.
Wang Huaqing: None of the vaccines currently on the market have a protection rate of 100%. They may fail due to individual reasons or vaccine characteristics. It is not universal.
This situation can be explained based on the current protection efficiency. According to the results of the current Phase III clinical trials, including the recent post-marketing protection effect published abroad, the vaccine actually has a protective effect on most people.
Can pregnant women get the new crown vaccine?
With the deepening of the new crown vaccination, some of the original restrictions have also changed.
Just last month, Shanghai and Beijing successively organized to vaccinate the new crown vaccine for elderly people 60 years old and above who have a need for vaccination and have a good physical condition.
In the early stage of vaccination, elderly people over 60 are not recommended to be vaccinated.
Reporter: Pregnant women are a very special group. Can pregnant women get the new crown vaccine now?
Wang Huaqing: The suggestion we give now is that pregnant women should not be vaccinated (for now).
Reporter: What should I do if I get pregnant unexpectedly after being vaccinated with the new crown vaccine?
Wang Huaqing: In this case, we have also given corresponding suggestions in the guide. After the vaccination, you do not need to take special measures. Follow-up health care during pregnancy and follow-up work are the same as other people’s measures. .
Which one of the five new crown vaccines should be used?
In terms of the development of new crown vaccines, China has always been the world's first phalanx.
At present, the new coronavirus vaccines from five manufacturing companies in my country have been approved for conditional marketing or emergency use, and all of them are vaccinated free of charge for citizens.
Which vaccine should you choose to vaccinate yourself is also a question that many people are struggling with.
Wang Huaqing: The reason why the new crown vaccine can be approved for marketing and use actually meets the most basic requirements. In this case, it is up to the country to determine which places to supply which vaccines and uniformly deploy them.
We hope to vaccinate as soon as possible, establish an immune barrier as soon as possible, and try not to consider individual differences, because if there is a big difference, there must be a way.