Individual differences may cause some people to have a slightly greater reaction to the Concinol vaccine. Concinol refers to an adenovirus vector vaccine produced by Concinol Biologicals, which is biologically active and has a good preventive effect against new coronavirus infections. Common adverse reactions to Concinol NeoCoronavirus vaccination include fever, malaise, nausea, headache, myalgia, drowsiness, diarrhea, and redness, swelling, hardness, and pain at the site of vaccination. Occasionally, adverse reactions such as cellulitis, functional gastrointestinal disorders, hemorrhage, rash, syncope, acute bronchospasm, and allergic reactions are seen. Whether the vaccine will have adverse reactions and the degree of adverse reactions is related to individual differences, and some people will have a slightly greater reaction after receiving Concinol vaccine. The biggest difference compared to other new crown vaccines is that only 1 shot is needed. There have also been no reports of serious adverse reactions in the current vaccination. As a new crown vaccine approved for use in the country, it has good safety and efficacy, so everyone can be assured of vaccination. Generally speaking, most of the adverse reactions to vaccination will be relieved within 2~3 days. If the adverse reaction continues unrelieved for more than three days, you need to go to the hospital in time.