The schedule of vaccination for newborns, for reference, is as follows: BCG and hepatitis B vaccine within two days after birth, hepatitis B vaccine at one month after birth, polio trivalent mixed vaccine at two months after birth, oral polio trivalent mixed vaccine and diphtheria mixed vaccine at three to four months after birth, diphtheria mixed vaccine at five months after birth, diphtheria mixed vaccine at six months The hepatitis B vaccine is given at five months of age, the hepatitis B vaccine at six months, the measles vaccine at eight months, and the mixed vaccine at one and a half to two years of age. The encephalitis B vaccine, epidemic meningitis vaccine, rubella vaccine, influenza vaccine, mumps vaccine, hepatitis A virus vaccine, chickenpox vaccine, influenza bacillus vaccine, pneumonia vaccine, and rotavirus vaccine are also sometimes given according to the parents’ wishes.