The basic immunization of Concinol Crown Vaccine is 1 dose, and a second booster shot is needed to strengthen the immunization after 6 months of vaccination. Concinol New Crown Vaccine is an adenovirus-vectored New Crown Vaccine. The basic immunization is one dose, i.e., the basic immunization can be completed after one injection, and people aged 18 years (relaxed to 12 years in some areas) and above who have been vaccinated for 6 months or more, and who do not have any special physical conditions, can receive booster injections. However, as the vaccination time goes by, the antibody level in individuals will decline, and there is still a high risk of infection when contacting infectious agents. Therefore, it is recommended that people who have been vaccinated against Concinol New Coronavirus receive a booster shot 6 months after the completion of the vaccination in order to maintain a high level of antibodies in the body. Adverse reactions such as redness, swelling, pain or fever at the vaccination site, malaise, nausea, headache, muscle aches, rash, etc. may occur after vaccination, so consult a doctor promptly in case of serious discomfort.