The age range for the new crown vaccine is 3 years old and above, and it should be noted that the age range for booster vaccination is 18 years old and above. At this stage in China, the age range of the key vaccination target of the new crown vaccine is above 3 years old, and if there is no contraindication to the vaccination of the new crown vaccine should be vaccinated in a timely manner. It is recommended that people between the ages of 3 and 18 complete the new crown vaccination under the supervision of their parents. People over 60 years of age have declining health, so it is especially important for them to be aware of any conditions that make them unsuitable for vaccination with the new crown vaccine. A booster shot is given to those who have already received 2 doses of adenovirus vaccine or inactivated vaccine, 1 month after the last dose, and within 6 months of the first dose, and can only be given to those 18 years of age and older. There are certain contraindications to the vaccination of XGV, and people with chronic diseases such as high fever, severe hypertension, and severe allergies to previous vaccination should avoid vaccination. If you need to be vaccinated, you should inform your doctor of your condition. It is important to note that even after receiving the vaccine, the protection rate is not 100%, and you should also do a good job of daily protection, wear a mask when you go out, and wash your hands frequently.