There is no absolute requirement for the order of vaccination of the two vaccines, but it should be noted that they should not be vaccinated at the same time. Pentavalent vaccine refers to the combined vaccine of inactivated polio vaccine, acellular pertussis vaccine and Haemophilus influenzae type B vaccine, which can prevent five diseases at the same time after vaccination, and the order of its vaccination refers to three doses of basic immunization at the age of 2, 3, and 4 months, or at the age of 3, 4, and 5 months, and one dose of booster immunization at the age of 18 months. The thirteen-valent pneumonia vaccine refers to the prevention of invasive diseases caused by Streptococcus pneumoniae serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F, and the sequence of the vaccination refers to the basic immunization at the age of 2, 4, and 6 months, and a booster at the age of 12 to 15 months. Therefore, there is a certain degree of convergence in the order of vaccination between DPT and Pneumovax, but there is no conflict between the two vaccines. If you need to receive both vaccines at the same time, there is no absolute requirement for the order of the two vaccines at the age of 2 months, and you need to consult with your doctor when you want to receive the other vaccine after receiving one. Read the vaccine instructions carefully before vaccination and consult your doctor if necessary.