How long is the validity period of COVID-19 vaccine? Who needs COVID-19 vaccine most?

1. As of 202 1, 1, how long is the one-time validity of COVID-19 vaccine? I'm not sure yet, but it can be guaranteed for at least half a year. Of course, the protection period of COVID-19 vaccine is not only half a year, but because the vaccination time is still very short, and the data is only half a year at present. At present, the relevant departments are still collecting the antibody level data of the vaccinated population and closely monitoring the protective effect after vaccination.

2. The research and development time of COVID-19 vaccine is relatively short, and the specific validity period is uncertain. However, according to previous experiments, antibodies still exist in the body after half a year of vaccination with COVID-19 vaccine, so it can be protected for at least half a year. At present, COVID-19 has begun to vaccinate on a large scale, but this kind of population is only aimed at some high-risk groups, such as cold chain workers, medical personnel, ship personnel, hotels, airports and other high-risk susceptible groups.