Those who have not been vaccinated cannot receive booster shots directly; those who have not been vaccinated need to be vaccinated to complete the basic immunization before receiving a booster shot.
Booster shots, also known as booster immunizations, are doses of vaccine that are administered after completion of the basic immunization to maintain immunity to the virus in accordance with the fading of antibodies. Booster shots can be given using the original vaccine, or in some cases, sequential booster shots can be given using vaccines of different technical routes.
For example, at this stage, the basic immunization with the new inactivated vaccine is 2 shots, and the adenovirus carrier vaccine is 1 shot, and after a period of time, according to the degree of decline in the human body’s antibody level, another shot will be given to strengthen the immunization, and after the booster shot is given, the antibody level of the vaccinated person will be greatly increased.
For those who have not been vaccinated, it is recommended that they receive the booster shot after completing the basic immunization under the guidance of a physician.