Three kinds of people can't get booster shots.

Three types of people who can't get booster shots are as follows:

The first category: people who have never been vaccinated with COVID-19 vaccine, or people who have been vaccinated with COVID-19 vaccine for less than 6 months.

COVID-19 vaccine booster is not a new vaccine. For example, two doses of Kexing vaccine were injected before, but the booster was actually injected with the same Kexing vaccine. Three shots of vaccine were injected before, and the booster shot is the same as the three shots of vaccine.

Therefore, for people who have never been vaccinated with COVID-19 vaccine, a shot of booster is equivalent to a shot of vaccine, and the protection effect is very low. In addition, it takes six months to get a booster shot after COVID-19 vaccine injection, which is too short, and the antibody effect in the body is very high, which is a bit superfluous.

The second category: people who are temporarily unable to get COVID-19 vaccine due to fever, acute diseases and other reasons.

Like the previous COVID-19 vaccine, in case of fever, acute attack, etc. It is necessary to suspend the vaccination of COVID-19 vaccine booster, so as not to affect the efficacy of the vaccine or make the disease worse.

The third category: people who have a serious allergic history or are allergic to vaccine ingredients.

If you have experienced acute allergic reaction, dyspnea or edema during the vaccination of other vaccines, and are allergic to potassium chloride, disodium hydrogen phosphate, aluminum hydroxide and sodium dihydrogen phosphate, you can't carry out intensive injection.

Generally speaking, as long as people who have been vaccinated with COVID-19 vaccine before and are not in the onset period of fever or acute diseases, they can be vaccinated with COVID-19 vaccine booster normally, and the side effects are similar to those before, such as fever, redness and swelling at the inoculation site, etc. But it can be relieved after rest without obvious serious side effects.