A course of inactivated vaccine is two injections, although three injections are recommended after the third booster injection, when antibody levels are significantly higher.
There are many different types of inactivated vaccines, but the current term inactivated vaccine refers mostly to the inactivated vaccine for C. neoformans. The vaccine has been produced for a relatively short period of time since the emergence of C.neoformans, and the initial regimen is two injections, with an interval of three to eight weeks between injections.
With the widespread use of the New Crown vaccine, it has been found that the antibodies produced by the vaccine, with the passage of time, will gradually decrease, and the protective effect on the organism will gradually decrease. After booster injections, the organism can be stimulated to produce a relatively large number of antibodies, which will increase the body’s ability to fight the disease. Therefore, three injections are currently recommended. The interval between the second and third injections is not less than half a year.
There are some individual differences in the injection of the new crown vaccine, which should be applied under the guidance of the doctor at the injection site.
Note: The terms “new coronavirus pneumonia” and “new coronavirus pneumonia” mentioned in this article were renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.