Talking about the uncomfortable feeling after strengthening the needle

No matter whether it is COVID-19 vaccine or inactivated vaccine, there is a certain chance that there will be some side effects after it is finished, and fever is a very common one.

However, according to the principle of vaccine, the immune response of Kangxinuo COVID-19 vaccine will be stronger and the immune effect will be better because of its innovative technical route. ∞ is much better for mutant viruses such as Omicron. This has been confirmed by many studies in the world. Otherwise, WHO will not approve Kangxinuo's COVID-19 vaccine to enter the global EUL use list.