Beijing Kexing vaccine and Anhui Zhifei vaccine are two different vaccines and should not be mixed. The Beijing Kexing and Anhui Zhifei vaccines cannot be mixed because the Kexing vaccine belongs to the inactivated Neocoronavirus vaccine (Vero cell), while the Anhui Zhifei vaccine is a recombinant Neocoronavirus vaccine (CHO cell), which belongs to a different type of vaccine. The first edition of the vaccination guidelines for Neocoronavirus vaccines published by the National Health Commission (NHC) clearly states that different types of vaccines should not be mixed. If the mixed vaccine will affect the effect, and some mixed patients will appear body abnormalities, if the body abnormalities are more serious, we must consult a doctor in a timely manner, under the guidance of a physician to avoid delays in the condition, resulting in adverse consequences.