How long is the protection period of the third dose of COVID-19? What should we do if the second dose of COVID-19 vaccine is missed

How long is the protection period of COVID-19 vaccine

According to the Chinese Health Commission, according to the relevant regulations of the World Health Organization, there is no doubt that the protection period of COVID-19 vaccine is more than half a year according to the requirements of the World Health Organization, but after all, the number of viruses infected by each patient is different, the age is different, and the severity of symptoms is different, so the protection period of the vaccine is also different, and the specific time depends on the actual situation.

What to do if the second dose of COVID-19 vaccine is missed

is effective. At present, the COVID-19 vaccine inoculated in most areas is the whole virus inactivated vaccine, which requires two doses. The interval between the first dose and the second dose should be 3 weeks or more, and the second dose should be completed as soon as possible within 8 weeks after the first dose. However, it is also possible to vaccinate 40 days after the first dose. According to the previous clinical trial study of inactivated COVID-19 vaccine, about two weeks after the second dose of inactivated vaccine, the vaccinated population can have a better immune effect.