Is it useful to use only one shot of COVID-19 booster shot? How to choose one shot and two shots of COVID-19 vaccine

Is COVID-19 vaccine with only one shot useful?

COVID-19 vaccine with only one shot is useful. The single shot COVID-19 vaccine is an adenovirus vector vaccine, which mainly eliminates the replication related genes of adenovirus, and cuts off the ability of the virus to replicate itself in the human body from the source. Therefore, a single shot of vaccination can produce antibodies and cellular immunity, without the need for enhanced injections like the previous double shot vaccine.

First of all, this vaccine is an adenovirus vector vaccine, which has now been approved by the National Medical Products Administration and conditionally marketed. This means that in terms of safety and efficacy, everyone can safely receive it. The previous two doses of inactivated vaccine

were antibodies produced by the immune response triggered by the first contact between our body and the vaccine. However, their survival time is not long, usually only a few weeks. Therefore, at this time, we need to supplement with an enhancer to further improve the quality of antibodies in our body and better protect us. The single shot COVID-19 vaccine is an adenovirus vector vaccine, which mainly eliminates replication related genes of adenovirus, and cuts off the self replication ability of the virus in the human body from the source, so one shot of vaccination can produce antibodies and cellular immunity.

How to choose between one and two injections

actually depends mainly on the individual. A single dose of adenovirus vector vaccine is more suitable for people who do not have enough time to wait, such as those who need to go to high-risk areas of the epidemic in a temporary or emergency situation, or those who are worried that they will not be able to get the second dose for various reasons after a few weeks. In other cases, the choice of vaccine is within a safe and controllable range, so there is no need to worry.