After receiving the Anhui Zhifei Xinguan vaccine, the number of antibodies in the body of the vaccinated person is still maintained at a high level, and a booster shot is not required for the time being.
The booster shot is given to vaccine recipients who have received two doses of inactivated vaccine and one dose of adenovirus vector vaccine, and the effectiveness of the vaccine begins to decline after 6 months. Anhui Zhifei Xinguang vaccine recipients do not need to receive a booster shot at this point in time because the antibody levels in their bodies are still high.
After the implementation of the sequential booster immunization strategy, those who have completed the full course of the inactivated vaccine can also choose to receive the recombinant protein vaccine from Jiffy or the adenovirus vector vaccine from Cohinox for the sequential booster immunization.