The pertussis vaccine is generally administered within the first year of age. Under normal circumstances, children should be taken to hospitals or public health prevention stations for vaccination according to the course of treatment. The first dose starts at the third month after birth, followed by the second dose at four months and the third dose at five months old. A booster can be administered when the baby is two years old. The DTP vaccine used in clinics mainly consists of three components: pertussis, diphtheria, and tetanus.