News 1+1丨Covid-19 vaccine, have you vaccinated?
The overseas epidemic is far away from us, and the domestic epidemic has been effectively controlled. Does vaccination do not matter?
Starting on the 24th, the National Health Commission will report the vaccination situation daily to promote universal vaccination.
Regarding the new crown vaccine, what other questions need to be answered?
"News 1+1" connects with Shao Yiming, a researcher at the Chinese Center for Disease Control and Prevention and a consultant for the World Health Organization's Vaccine R&D Committee, and is concerned: have you received the new coronavirus vaccine?
The confirmed cases in Xi'an were infected after being vaccinated. What role does the vaccine do?
Shao Yiming, researcher of the Chinese Center for Disease Control and Prevention and consultant of the World Health Organization's Vaccine Research and Development Committee:
Our current vaccine prevention is secondary prevention,
mainly to prevent disease, especially to prevent severe illnesses that require medical treatment and ICU severe illness
.
At present, all domestic and international vaccines are used to judge the protective effect of vaccines according to such a design, so the case of Xi'an is also a normal phenomenon.
First of all, the vaccine does not have a 100% protection rate. Second, this patient has very mild symptoms and has basically recovered now, so the effect of this vaccine is still played.
80% of the population can be vaccinated to reach the herd immunity barrier, that is, more than 1 billion people need to be vaccinated.
Shao Yiming, researcher of the Chinese Center for Disease Control and Prevention and consultant of the World Health Organization's Vaccine Research and Development Committee:
China’s daily vaccination capacity is now the highest in the world, reaching 10 million people
. If 1 billion people are vaccinated, it will be 100 days.
When we most need vaccines to play the role of herd immunity, it is when the global prevention and control situation improves. Vaccination in most countries around the world has reached the level of herd immunity, and then the country opens, and global personnel exchanges increase. I think it may be at least 6 months to 10 Months later, so we have enough time to build the largest immune barrier.
When do people under 18 start vaccination?
Shao Yiming, researcher of the Chinese Center for Disease Control and Prevention and consultant of the World Health Organization's Vaccine Research and Development Committee:
Order vaccination according to the risk of the population.
The highest-risk group was vaccinated last year. Adults now have the largest range of activities. The vaccinations have been started after the Spring Festival. Now the safety and protection data of the elderly are accumulating more and more, so vaccinations are also started for people over 60 years old. ,
after the majority of infected children is very light symptoms, so children are whole social groups in the lowest risk
, such as the elderly population after vaccination, vaccination of children will follow suit, and this is called an orderly vaccination.
"If someone else hits it, it's equivalent to me hitting", "You have to wear a mask if you don't fight, and I won't fight"... Are these concepts correct?
Shao Yiming, researcher of the Chinese Center for Disease Control and Prevention and consultant of the World Health Organization's Vaccine Research and Development Committee:
There is a saying, "Everyone is for me, I am for everyone".
Everyone who can be vaccinated
must
take the vaccination as their own obligation.
There are some people in our society who have various allergies, frailty, and many basic diseases, and cannot be vaccinated, including pregnant women.
Only when most other people take the responsibility and build up the immune barrier, can it be ensured that these people who are not vaccinated are also very safe.
my country wants to vaccinate all the people, overseas Chinese citizens want to vaccinate, and there is assistance and export to other countries. Can the vaccine supply keep up?
Shao Yiming, researcher of the Chinese Center for Disease Control and Prevention and consultant of the World Health Organization's Vaccine Research and Development Committee:
Can be supplied.
We have approved these vaccines, such as inactivated vaccines, protein vaccines, viral vector vaccines, etc., and other types of vaccines are also stepping up into clinical trials, and several manufacturers’ vaccines are already undergoing phase III clinical trials. As demand increases, production capacity will be further released.
If we fail to establish a herd immunity barrier in time, what will be the consequences?
Shao Yiming, researcher of the Chinese Center for Disease Control and Prevention and consultant of the World Health Organization's Vaccine Research and Development Committee:
The advantages of the prevention and control of the new crown pneumonia epidemic will change.
Our country is now an absolute advantage, but due to a large number of epidemics abroad, even 20% of the population in some countries are infected, and their vaccination promotion speed is relatively fast, finally their population has established a herd immune barrier, 78% Ten people are not susceptible.
In China, only nearly 100,000 people have been infected with the virus, and
more than 99.99% are susceptible people
.
If we do not use vaccines with the lowest cost to establish an immune barrier as soon as possible, then our country's advantages will become disadvantages, and an immune depression will be formed.
Can the vaccine deal with the constantly mutating virus?
Shao Yiming, researcher of the Chinese Center for Disease Control and Prevention and consultant of the World Health Organization's Vaccine Research and Development Committee:
It should be said that the main epidemic areas in the world are still dominated by early epidemic strains, and there are a few mutant strains, which have not caused a significant decline in vaccine efficiency.
However, with the spread of the epidemic, the virus continues to mutate, such as the emergence of South African strains and Brazilian strains. Phase III clinical trials have been done in these areas internationally, and its efficiency has dropped by 20% and 50%, so this situation will happen. .