1. What is sequential booster immunization?

sequential booster immunization refers to a strategy of booster immunization with vaccines with different technical routes from basic immunization at certain time intervals and doses, mainly to further improve the vaccine prevention effect and reduce the risk of adverse reactions.

2. Why do you need sequential immunization?

For conventional and easily-handled viruses or diseases, it is generally enough to use vaccines with a single technical route. However, for viruses with strong variability and difficult to deal with, such as Covid-19, sequential immunization can be used for two main purposes: < P > First, different vaccines can complement each other;

Second, different people's constitutions are different. A single technical route vaccine has more side effects on some people and is not suitable for multiple vaccinations. Vaccination with different technical routes can avoid side effects.

The national deployment of Covid-19 vaccine to strengthen immunization in sequence provides a new means to build an immune barrier and provides more choices for people to strengthen immunization.

3. What is the difference between "sequential booster immunization" and "homologous booster immunization"?

homologous booster immunization is to use vaccines with the same technical route as basic immunization for booster immunization. The target population over the age of 18 who have been vaccinated with Covid-19 inactivated vaccine and adenovirus vector vaccine for 6 months in the whole process of basic immunization can be given a dose of homologous booster immunization, that is, booster immunization with the original vaccine.

Sequential booster immunization is to choose vaccines with different technical routes from the original whole vaccination, such as recombinant protein vaccine or adenovirus vector vaccine.

Homologous booster immunization and sequential booster immunization can greatly improve the neutralizing antibody level of the recipients, further improve the immune effect, and have good safety.

please note: at this stage, sequential booster immunization and homologous booster immunization cannot be accepted at the same time.

4. which groups can receive sequential booster immunization?

There are four important conditions for the sequential immunization of vaccines in Covid-19:

First, people over 18 years old.

Secondly, two doses of inactivated vaccine have been inoculated, and Covid-19 inactivated vaccine from Sinopharm Zhongsheng Beijing Company, Beijing Kexing Company and Sinopharm Zhongsheng Wuhan Company has been inoculated.

Third, complete 2 doses of inactivated vaccine inoculation in the whole process, and the inoculation interval should not be shorter than 6 months.

fourthly, the vaccinated subjects have not received booster immunization, that is, they have not received the third injection.

5. at this stage, which vaccines can be selected for sequential immunization?

At this stage, the target for sequential booster immunization can choose the recombinant protein vaccine of Anhui Zhifeilong Kema Company or one of the adenovirus vector vaccines of Tianjin Kangxinuo Company to carry out 1 doses of sequential booster immunization.

6. what should I pay attention to in order to strengthen immunization?

please bring your ID card and vaccination certificate to the vaccination clinic, and cooperate with the on-site staff to complete the temperature test and health inquiry. Please provide the vaccination history of Covid-19 truthfully, and the vaccination doctor will judge whether it is appropriate to carry out sequential booster immunization, and make informed notification. After the recipients voluntarily choose homologous or sequential immunization, they will be vaccinated in a standardized way. After inoculation, stay on the spot for 31 minutes and leave without discomfort.

7. Is it free to vaccinate COVID-19 vaccine for sequential booster immunization?

yes.

At this stage, the policy of sequential immunization is free. People who meet the requirements of sequential booster immunization can choose one of recombinant protein vaccine or adenovirus vector vaccine, and get 1 doses of booster vaccination free of charge.

8. Why should the elderly actively take COVID-19 vaccine?

The research shows that the risk of serious illness and death is higher in the elderly population infected with Covid-19. Vaccination with Covid-19 vaccine can greatly reduce the risk of serious illness and death after infection. It is suggested that the elderly who meet the vaccination conditions, if they have not been vaccinated or given booster shots, can complete the whole vaccination and booster shots as soon as possible in accordance with relevant regulations. If people over 61 years old meet the conditions of sequential booster immunization, they can also choose sequential booster immunization.

A series of measures for the convenience of the elderly have been introduced in all parts of our province. From the setting of inoculation points to the arrangement of inoculation environment, they have been further refined according to the characteristics of the elderly, so as to provide better services for the elderly. In the next step, we will continue to focus on the characteristics of the elderly, guide all localities to carry out vaccination work more pertinently, optimize service quality, ensure vaccination safety, and improve the vaccination willingness of elderly friends.

Remind everyone that family support is very important to improve the vaccination rate of the elderly. I hope that everyone will care more about the elderly, mobilize and accompany them to get Covid-19 vaccine, and build health protection for the elderly.

9. Where to vaccinate Covid-19 vaccine?

in principle, the enhanced immunization of key populations and personnel in key positions to ensure the basic operation of society shall be organized and implemented by all relevant units. Other people can make an appointment for vaccination at the inoculation unit designated by the jurisdiction. All localities should disclose the name, address, service hours and contact information of vaccination units to the public. For details, see the official information released by local health departments or CDC.