Approved by the joint prevention and control mechanism of the State Council
The National Health Commission has begun to deploy
Sequentially strengthen immunization
What does this mean?
Who are they associated with?
Let's take a look
Sequential immunization is an immunization strategy adopted by vaccines of different technical routes according to a certain interval of vaccination time and the number of doses, in order to further improve the prevention effect and consider safety.
Generally for conventional viruses or diseases that are easy to deal with, a single vaccine is enough, but for some highly variable and difficult to deal with viruses, it is often a sequential immunization method. There are mainly two purposes: one is that different vaccines can complement each other's advantages, and the individual physique is different, which may have more side effects on a certain type of vaccine, so that another vaccine can avoid side effects.
recently
National Health Commission
Deployment of sequential booster immunization has begun
There are four types of objects in this sequential immunization:
●People over 18 years old
●Complete 2 doses of inactivated vaccination, and these 2 doses are the inactivated vaccine of the new crown virus of Sinopharm Zhongsheng Beijing Company, Beijing Kexing Company, and Sinopharm Zhongsheng Wuhan Company
●Complete 2 doses of vaccination throughout the process, and the interval between sequential booster immunizations should not be less than 6 months
●No booster immunization has been performed, that is, the 3rd injection has not been given.
Previously, the target population over the age of 18 who had been vaccinated with the inactivated vaccine of Sinopharm Zhongsheng Beijing Company, Wuhan Company, Beijing Kexing Company, and the adenovirus vector vaccine of Tianjin CanSino Company for 6 months could be activated with a dose of homologous enhanced immunity, that is, strengthened with the original vaccine. After the implementation of the sequential enhanced immunization strategy, the target population who has completed the full vaccination of the above three inactivated vaccines can also choose the recombinant protein vaccine of Zhifeilong Koma or the adenovirus vector vaccine of Cansino for sequential enhanced immunization.
For the target population, homologous booster immunization and sequential booster immunization, choose one or the other.
The research data show that homologous booster immunization and sequential booster immunization can further improve the immunization effect, and people who hope to meet the vaccination conditions can take the initiative to vaccinate and vaccinate early.
Shao Yiming, a member of the expert group of the vaccine research and development special class of the scientific research group of the joint prevention and control mechanism of the State Council, introduced that the mainland has deployed vaccine research and development units to carry out the research and development of the Aomi Kerong variant vaccine.
"Even if the virus has more serious mutations, such as completely escaping the preventive effects of the vaccines currently being produced, the mainland can quickly produce new vaccines on a large scale, and the public can rest assured," he said. ”