Taking cephalosporin can be normal vaccination, but if there is an acute infectious disease such as pneumonia, and the symptoms are more serious, you need to consult the doctor to decide. Cephalosporins belong to broad-spectrum antibiotics, mainly for bacterial infection control, generally will not react with the vaccine, so in the process of taking cephalosporins can be normal vaccination, cephalosporin antibiotics will not directly affect the effectiveness of the vaccine. However, if the vaccinee has pneumonia and other infectious diseases, is using cephalosporins for treatment, and poor control, it is not recommended to vaccinate directly, at this time their own immunity is relatively weak, may affect the effectiveness of the vaccine as well as the treatment of the original disease, you need to consult a doctor, according to the doctor’s advice to decide whether to carry out the vaccination.