Kexing and Bio are the two manufacturers of the Neocoronavirus vaccine, and Bio is Beijing Biologicals, so either Kexing or Beijing Biologicals can be used for children’s vaccinations, depending on the availability of the vaccine in the area and the convenience of the vaccination. The vaccination of children with the new coronavirus vaccine, whether it is inoculated with Kexing or Beijing Biological, belongs to the inactivated new coronavirus vaccine. Their technical routes, adverse reactions and other characteristics are basically the same, only the manufacturers are different, so there is no clear distinction between good and bad, and both can achieve the established protective effect. It is only necessary to decide according to the regional supply and the convenience of vaccination, such as the region only supplies the Ke Xing vaccine, then the vaccine can be vaccinated with the Ke Xing vaccine. If only Beijing Biological vaccine is available at a nearby vaccination center, you can get vaccinated directly without selecting a specific vaccine for vaccination. Please consult your physician for specific precautions regarding vaccination.