The current national regulations state that the New Crown vaccine can be given at the age of 12 years or older, and the clinical route of vaccination is intramuscular. In general, children over 12 years of age can receive the New Crown vaccine in the company of a guardian. If a child is allergic to any of the components of the vaccine, or to a substance used in the production of the vaccine, and if he or she has had an acute allergic reaction, sudden respiratory failure, such as anaphylaxis, or other severe allergic phenomena during previous vaccinations, he or she may not receive the New Crown vaccine. In addition, children with serious neurological diseases such as spinal cord cavitation, demyelinating diseases, or with acute disease symptoms such as acute fever, as well as those who are in acute seizures of certain chronic diseases, or those with uncontrollable epilepsy, serious chronic diseases, as well as thrombocytopenia and bleeding disorders, should not receive the New Crown vaccine. It is recommended that children over 12 years of age avoid fasting, strenuous exercise, and overexertion before receiving the vaccine and try to take the vaccination in a relatively relaxed state. After the injection, it is necessary to follow medical advice and stay on site for at least 30 minutes for observation. If symptoms such as high fever, vomiting, fainting or shock appear, they may be related to the child’s allergy to the vaccine and need to be treated promptly after immediate resuscitation. If the above-mentioned symptoms appear after the end of the stay for observation, it is also necessary to report to the vaccination unit and seek medical attention promptly for active treatment.