The New Coronavirus vaccine, or Novel Coronavirus vaccine, is generally administered to children over 12 years of age, accompanied by a guardian, and usually has no effect on themselves or the effects of the vaccine. If a child is allergic to any of the components of the vaccine, or to substances used in the production process, as well as to previous allergies such as respiratory distress, acute allergic reactions, or angioneurotic edema after receiving similar vaccines, it is recommended that a detailed consultation with a physician be conducted before deciding whether to receive the vaccine. In addition, if a child has a serious neurological disease such as Greenbrier’s syndrome or demyelinating disease, is in the acute phase of an acute disease or chronic disease, or has uncontrolled epilepsy, serious chronic disease, as well as thrombocytopenia or bleeding disorders, it is also recommended that a detailed consultation be made before vaccination. Children are advised to avoid strenuous exercise and overexertion before receiving the new coronavirus vaccine, and to take the vaccination in a relatively relaxed state. If symptoms such as high fever, vomiting, fainting or shock occur, they may be due to vaccine allergy and should be immediately resuscitated and treated accordingly. If mild fever, malaise, drowsiness, etc. occur after the end of the observation period, it may be an adverse reaction to the vaccine, which is usually not too worrying and can be relieved in 2-3 days. However, if the adverse reaction does not improve, or if serious symptoms such as high fever or vomiting appear, please seek medical attention promptly. In addition, do not take a bath for 24 hours after vaccination, keep the injection site dry, eat a light diet, and ensure rest and relaxation. Children are also advised to wear masks when going out, not to go to crowded places, wash their hands regularly, and do their daily protection work.