What does sequential inoculation mean, what is the effect, when to start and how to inoculate?

Recently, I think everyone has heard that there is a new vaccine in COVID-19. What's its name? Sequential vaccination? . Many people have many questions about this. Then, what is the significance of sequential vaccination, what is the effect, when to start and how to vaccinate?

Sequential inoculation is a strategy of inoculation at a certain time interval and a certain dose according to different technical routes. To put it simply, there is an additional inoculation method, which can be the third booster inoculation or the sequential inoculation.

The main purpose of sequential inoculation is to improve the preventive effect or further reduce the risk of adverse reactions after severe inoculation, and it can also deal with viruses with strong variability and difficulty. At present, there is no specific data showing sequential vaccination, and it is impossible to know the specific effect.

At present, some regions and provinces in China can start sequential vaccination. The specific vaccination time and place can be found in local policies. Secondly, the following four conditions need to be met for vaccination with enhanced sequential needle:

1, must be over 18 years old.

You need to finish the first two doses of inactivated vaccine. These two doses of vaccines should be COVID-19 inactivated vaccines from Sinopharm Zhongsheng Beijing Company, Beijing Kexing Company and Sinopharm Zhongsheng Wuhan Company.

3. After the first two doses of vaccination, the interval between vaccinations shall not be less than 6 months.

4, did not play the third needle, that is, strengthen the immunization needle.

Friends who see this may want to ask, what is the difference between this intensive vaccination and sequential vaccination? In fact, simply speaking, sequential vaccination is the third shot of inactivated vaccine, but adenovirus vaccine, mRNA vaccine or any other non-inactivated vaccine.

If the third injection is not inoculated after two injections, the following scheme can be considered:

1, inactivated vaccine (the first two doses), basic vaccine and recombinant protein vaccine (the third dose) 1 dose to strengthen immunization;

2, inactivated vaccine (the first two doses) basic vaccine and adenovirus vaccine 1 dose booster immunization (sequential vaccination).