The third dose of the New Crown vaccine refers to the booster shot of the New Crown inactivated vaccine, which is not available to minors at this time. At present, the third vaccination of the new crown vaccine is required to have completed two doses of inactivated vaccine, and the second dose has reached 6 months from the present day of the people over 18 years of age, at present, minors are not vaccinated. After receiving the new crown vaccine, it does not mean that you can get antibody protection for life. Over time, the titer of the antibody will decrease and the ability to fight the virus will be lost. In addition, there are certain contraindications to the vaccination of the new crown vaccine, and it is recommended to consult with a specialist when necessary, to avoid the existence of contraindications to the vaccination of the situation affecting the health of the body.