What should I pay attention to when I take the "booster shot" of COVID-19 vaccine?

Affected by Delta mutant virus, the protective efficacy of COVID-19 vaccine was affected to some extent, and some people were still infected after being vaccinated with COVID-19 vaccine. Many people are worried about whether the previous vaccine will fail. Whether to strengthen the protection of antibodies. With the passage of time, after vaccination with COVID-19 vaccine, the antibody level in the body decreased, and the immunity in the body remained unstable. If the virus enters the human body, the antibody level will increase significantly.

According to research and observation, ordinary people who have been vaccinated with COVID-19 vaccine within one year do not need to strengthen the injection for the time being. Officials have not released clear information about the side effects of COVID-19 vaccine. According to the inactivated vaccine injected in the past, if the booster needle is also inactivated vaccine, similar side effects may occur, such as redness, low fever, fatigue and so on. We usually don't have to worry about strengthening the safety of needles. After all, it was injected into the human body. They have experienced many clinical trials before, and will not make fun of everyone's life safety.

The third dose of Pfizer COVID-19 vaccine can significantly reduce the risk of COVID-19 infection. We observed that the protective durability of our vaccine is about half a year, and the durability of neutralizing antibody is about half a year. In the clinical process, we also designed intensive needle inoculation to observe the persistence and protection level of antibodies. Booster needle is not the original invention of COVID-19 vaccine. People over the age of 60 have a higher risk of serious illness, critical illness and death after infection than other people. After completing the immunization program for 6 months, they can have intensive vaccination.

When the body surface antibody drops to 10IU/L, we can consider using an injection needle. After injection, the antibody titer in vivo can be increased and the preventive effect on related diseases can be enhanced. COVID-19 vaccine and COVID-19 vaccine are the same vaccine. Supercharger injection does not need to be redeveloped. This is just another injection of the existing vaccine. Of course, the dosage can be different according to different situations. According to reports, the effective rate of inactivated vaccine in COVID-19 we used is about 80%. Then 20% people can't produce antibodies. These people can inject the third dose of vaccine, not for a large number of people, but for some people who do not produce antibodies or have low antibody titer.