On February 19th, the State Council Joint Defense and Control Mechanism held a press conference. At the meeting, Wu Liangyou, deputy director of the CDC of the National Health and Wellness Commission, said that recently, with the approval of the joint prevention and control mechanism of the State Council, the National Health and Wellness Commission has started to deploy sequential enhanced immunization.
Previously, all the target people over 18 years old who have been vaccinated with inactivated vaccine from Sinopharm Zhongsheng Beijing Company, Beijing Kexing Company, Sinopharm Zhongsheng Wuhan Company or adenovirus vector vaccine from Tianjin Kangxinuo Company for 6 months can take one dose.Homologous enhanced immunityThat is, it is strengthened with the original vaccine.Sequential booster immunizationAfter the implementation of the strategy, the target population who have been vaccinated with the above three inactivated vaccines can also choose the recombinant protein vaccine of Zhifeilongkema or the adenovirus vector vaccine of Kangxinuo for sequential booster immunization. For the target population, one of homologous booster immunization and sequential booster immunization can be selected. In addition, the joint prevention and control mechanism of the State Council also approved the homologous booster immunization of inactivated Covid-19 vaccine from Shenzhen Kangtai Company and Institute of Biology, Chinese Academy of Medical Sciences. Both homologous strengthening and sequential strengthening should be implemented in people over 18 years old who have completed the whole vaccination for 6 months.
Can sequential booster immunization be carried out after vaccination? Are people over 60 years old suitable for sequential immunization? Eight questions answered by experts in one article!
In COVID-19, the sequential immunization of vaccines will soon be carried out in the whole country. We have collected relevant vaccination questions that have attracted much attention and invited experts to answer questions.
1.
Is it necessary to strengthen the needle? Is it safe?
It is necessary to fightFrom the current related research, strengthening needles is also more effective. According to the research results at home and abroad, vaccination in COVID-19 has significantly reduced the morbidity, hospitalization and mortality caused by Covid-19, and played a great role in epidemic prevention and control. However, COVID-19 vaccine, like other vaccines, has a weakened protective effect with the passage of time after vaccination. However, after enhanced immunization, the recipients will produce higher antibody levels in their bodies, thus gaining protection against virus attacks.
2.
What is homologous immunization? What is sequential immunization? Who is the target group?
Homologous booster immunization: refers to booster immunization with the same technical route as basic immunization.
At present, two doses of inactivated vaccine (Vero cells) plus one dose of inactivated vaccine (Vero cells) are implemented in China, or one dose of adenovirus vector vaccine plus one dose of adenovirus vector vaccine.
Specifically:
People aged 18 and above who have completed two doses of the same inactivated vaccine (Vero cells).After 6 months, the original inactivated vaccine (Vero cells) can be used for one dose of booster immunization;
People aged 18 and above who have completed two doses of inactivated vaccine (Vero cells) from different manufacturers.After 6 months, the same vaccine as the second dose is given priority in principle. If the second dose of the same vaccine is not available, the same vaccine as the first dose can be used for one dose of booster immunization.
Population aged 18 and above vaccinated with adenovirus vector vaccineAfter 6 months, the original vaccine was used for 1 dose of booster immunization.
People over the age of 18 who used Shenzhen Kangtai Covid-19 inactivated vaccine (Vero cells) to complete two doses of vaccination.After 6 months, in principle, continue to use the original inactivated vaccine for one dose of booster immunization.
People over 18 years old who use Zhifei recombinant COVID-19 vaccine (CHO cells)You only need to complete three doses of full vaccination, with an interval of 4 weeks between each dose, and there is no need to strengthen immunization.
Sequential booster immunization: refers to booster immunization with vaccines with different technical routes from basic immunization.
Sequential booster immunization faces the whole process of vaccination.Sinopharm Zhongsheng Beijing Company, Beijing Kexing Company and Sinopharm Zhongsheng Wuhan Company.Inactivated Covid-19 vaccineFull 6 months, andPeople aged 18 and above who have not completed homologous immunization..
At present, the vaccination scheme of homologous and sequential booster immunization of COVID-19 vaccine on the market is as follows:
3.
How to carry out sequential immunization?
At present, there are two combination schemes for sequential immunization:
Inactivated vaccine (Vero cells) 2 doses of sub-basic immunization+Recombinant protein vaccine (CHO cells)1 dose of booster immunization;
Inactivated vaccine (Vero cells) 2 doses of sub-basic immunization+adenovirus vector vaccine1 dose of booster immunization.
Bottom line: I got two shots of inactivated COVID-19 vaccine, and the third shot can be inactivated vaccine, adenovirus vaccine or recombinant protein vaccine.
4.
How safe is sequential booster immunization?
The existing data show that both sequential immunization combination schemes can greatly improve the neutralizing antibody level of the recipients and have good safety.
5.
Can people over the age of 60 be vaccinated sequentially?
People over 60 years old are at high risk of Covid-19 infection.
People over the age of 60 who meet the requirements of sequential booster immunization can choose sequential booster immunization.
6.
Is it free to take the sequential booster immunization program to vaccinate COVID-19 vaccine?
At this stage, the implementation of immunization is strengthened in sequence.Free vaccination policy.
People who meet the requirements of sequential booster immunization can choose recombinant protein vaccine or adenovirus vector vaccine.Free booster vaccination 1 dose..
7.
What are the precautions for vaccination against Covid-19 vaccine?
Before vaccination, according to the previous vaccination certificate, confirm whether you are 18 years old or above and whether you have completed basic immunization for more than 6 months.
When vaccinating, you need to carry your identity documents and vaccination certificates, and do personal protection according to the requirements of epidemic prevention and control, and cooperate with the relevant inquiries and registration of the vaccination staff on site.
After inoculation, observe the site for 30 minutes according to the regulations, keep the inoculated local skin clean, and avoid scratching the inoculated site with your hands.
8.
I have been vaccinated with "booster shots", can I still carry out sequential booster immunization?
The target population is free to choose:
Adopt the original technical route vaccine to carry out homologous enhanced immunization
Adopt different technical routes to carry out sequential booster immunization.
butSequential booster immunization and homologous booster immunization cannot be accepted at the same time..
People who have completed the "booster shot" vaccination with inactivated vaccine do not need to be vaccinated again..
Disease control experts reminded
At present, the global COVID-19 epidemic continues to develop, and Covid-19 accelerates the spread of mutation. China is still under great pressure to "import foreign defense and rebound internal defense".Vaccination with Covid-19 vaccine is still the most effective, safest and most economical measure to prevent and control COVID-19.. Strengthening immunization is of great significance for protecting susceptible people and effectively curbing the spread of the epidemic.
Please meet the vaccination conditions of personnel as soon as possible to strengthen Covid-19 vaccine immunization, and mobilize your relatives and friends to take the initiative to vaccinate, and jointly build an immune barrier!
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