Why do you want to get a booster shot of COVID-19 vaccine?

Now everyone is talking about the booster vaccine in COVID-19, because many people have finished two doses of COVID-19 vaccine before, and they want to know the difference between the booster vaccine in COVID-19 and the basic vaccine. Why do you need to strengthen COVID-19 vaccination? The following small series brings an introduction.

What is the difference between COVID-19 vaccine booster needle and basic needle?

COVID-19 vaccine booster needle and COVID-19 vaccine basic needle are the same vaccine.

There is no difference between the booster needle and the basic needle of our vaccine. They are all the same components. Its purpose is to stimulate the lymphocytes of the immune system, promote the production of corresponding memory cells and immune antibodies, and thus obtain protection. Vaccination booster has been used in many vaccines, such as hepatitis B vaccine and recently COVID-19 vaccine. After vaccination, if the antibody is not up to standard at the time of re-examination, the corresponding booster needle should be replanted.

So is COVID-19 vaccine used to enhance immune safety?

The national vaccine research and development class organized experts to conduct full research and demonstration. After strengthening immunization, no serious adverse reactions occurred, and neutralizing antibodies will increase rapidly.

What are the precautions for strengthening immunization?

(1) Bring your ID card before vaccination.

(two) after the previous vaccination of COVID-19 vaccine, there was a serious reaction after vaccination. As a contraindication to vaccination, it is recommended not to vaccinate against booster vaccine.

(3) After inoculation, it is necessary to stay in the same place for at least 30 minutes. A few people will have mild systemic reactions, such as tenderness at the inoculation site, fever, headache and body aches. These generally do not need to go to the hospital, pay attention to rest. Generally 1-2 days will relieve itself. However, if the symptoms are serious and last for a long time, it is recommended that the recipient go to the hospital in time.

Why do you want to get a booster shot of COVID-19 vaccine?

Because after completing the basic immunization, after a certain period of time, the protective antibodies in the body will gradually weaken or disappear. In order to maintain the necessary immunity, it is necessary to vaccinate again. For example, at this stage, COVID-19 inactivated vaccine is inoculated with 2 shots in the whole process, and then 1 shot is inoculated according to the degree of decline of human antibody level, which is called booster immunization.

At present, the global COVID-19 epidemic is still in the epidemic stage, and the task of "external introduction and internal rebound" in China is arduous. Vaccine is an important weapon to resist virus, and strengthening immunity is of great significance to protect susceptible population and effectively curb the spread of epidemic.

According to authoritative research, the antibody produced by adding a needle to strengthen immunity will be much higher than the peak value without strengthening immunity.

Strengthening immunity can better deal with mutant strains. According to the research, after one shot of immunization, not only the antibody level increases, but also the antibody spectrum is wider, which means that it will have better protection effect on mutants.