Does COVID-19 vaccine booster have to be 6 months old? COVID-19 vaccine booster interval

With the coming of autumn and winter this year, many places in China have carried out intensive injection of COVID-19 vaccine to strengthen the immunization work. Recently, many places in Zhejiang Province have started the booster injection of COVID-19 vaccine, so who will be given priority to the booster injection of COVID-19 vaccine, and how long is the interval between booster injections of COVID-19 vaccine?

COVID-19 vaccine booster immunization interval A: The interval between booster immunization and whole immunization is at least 6 months. In other words, it will take at least 6 months after the whole immunization to get the booster vaccine again.

For example, inactivated vaccines should be strengthened at least half a year after the second injection.

According to the staff, two inactivated vaccines, namely 1, have been completed.

People who have been vaccinated with adenovirus vector COVID-19 vaccine for more than 6 months and the age of 18 can be given intensive injections, giving priority to people with high risk of infection such as cold chain transportation and public security transportation, and more people in need will be given intensive immunization according to the actual situation.

Experts suggest that people with relatively low immune function, people over 60 who need to go abroad to work, study and communicate, and other people who are willing to vaccinate can go to the nearby community health service center (health center) to vaccinate themselves.

Who gets the booster first? Can you mix them? Since booster injections are so good, who will be the first to receive booster injections?

According to the study on the safety and immunogenicity of two doses of inactivated vaccine after 6 months, experts suggest that people who have been vaccinated with inactivated vaccine, who are at high risk of contracting COVID-19, and key people over 60 years old should be immunized.

Specific personnel, including airport, port, isolation place, border inspection, disease control and other staff, employees of designated medical institutions should strengthen immunization; People with immune deficiency or low immunity, people over 60 years old, can also consider enhancing immunity; People who go abroad for study and work exchanges, especially those who go to countries where the epidemic continues to spread, and those who are at risk of infection also suggest strengthening immunization.

"At present, we only have such considerations for key people. Whether it is necessary to strengthen universal immunization, relevant units are studying, and we must make a comprehensive judgment based on the epidemic situation. " Cui Gang said.

The interval between stitches is 6 months. That is, after the whole immunization, it takes at least 6 months to strengthen immunization. Wang Huaqing explained that, for example, if inactivated vaccine is to be strengthened, it should be carried out at least six months after the second dose of vaccine.

In the choice of vaccine, the current expert's suggestion is to use the vaccine produced by the original inoculation enterprise. If the same enterprise cannot meet the supply, it is also necessary to choose the vaccine with the same technical route for vaccination. In other words, it is not recommended to "mix" strengthening needles at present.

Wang Huaqing reminded that contraindications should be strictly avoided when strengthening injections, especially in the process of vaccination in COVID-19. If there is allergic reaction, no matter whether it is the first injection or the second injection, it can't be vaccinated as a contraindication.

Q 1 Basic principles and organizational forms of supplementary immunization in COVID-19?

Priority should be given to strengthening the immunization of high-risk infected people and key positions to ensure the basic operation of society. Other eligible people who need to be vaccinated can also be vaccinated.

Q2 What vaccines can people who have been vaccinated get?

2 doses of inactivated COVID-19 vaccine (produced by China Institute of Biological Products of Sinopharm Group, Wuhan Institute of Biological Products or Beijing Kexing Zhongwei Biotechnology Co., Ltd.) or 1 dose of adenovirus vector COVID-19 vaccine (produced by Kangxinuo Biological Co., Ltd.).

Q3 What is the age range of intensive vaccination?

18 years old and above.

Q4。 What is the interval between the strengthening needle and the previous needle?

6 months and above.

Q5 What is the interval between booster injection and other vaccines?

The inoculation interval between other vaccines and the booster injection of COVID-19 vaccine should be greater than 14 days. When rabies vaccine, tetanus vaccine and immunoglobulin need to be vaccinated due to animal injury, trauma and other reasons, this interval requirement may not be considered.

What kind of vaccine is Q6 booster injection? Can different kinds be mixed?

The vaccine for booster injection should be the same as the vaccine for basic injection, that is, people who are vaccinated with 2 doses of inactivated vaccine should use 1 booster injection, and people who are vaccinated with 1 dose of adenovirus vector vaccine should use 1 booster injection.

How many shots does Q7 booster need to be inoculated?

1 needle.