What are the factors related to adverse reactions after vaccination?

BEIJING, April 21 power of the State Council joint prevention and control mechanism 21, held a press conference on the new crown vaccination situation.

At the meeting, a reporter asked questions that some people may feel uncomfortable after receiving the new crown vaccine, or suspect that they have an adverse reaction.

Wang Huaqing said that after vaccination, some people will experience adverse reactions.

Wang Huaqing pointed out that sometimes it is also related to individual differences in people, such as age.

Wang Huaqing said that some people with immunodeficiency, in order to ensure the safety of vaccination, in fact, it is recommended that people with immunodeficiency do not receive live attenuated vaccine in principle, because of this constitution and disease state, they will be vaccinated after vaccination with live attenuated vaccine.

"This means that the situation of adverse reactions is related to the characteristics of its vaccine, as well as factors including the person’s age, health status, and previous allergic history.