Clinical Study on the Combined Administration of 15-Valent Pneumococcal Conjugate Vaccine and Diphtheria, Tetanus, Pertussis Vaccine

Administer 0.5ml of 15-Valent Pneumococcal Conjugate Vaccine and Diphtheria, Tetanus and Acellular pertussis (Component) Combined Vaccine (Adsorbed) separately at different locations upon enrollment. Both vaccine were immunized according to the 0, 1, and 2 month procedures (calculated as 30 days per month).

Vaccination with 15-Valent Pneumococcal Conjugate Vaccine with a 7-day interval (+15 day window period) followed by vaccination with Diphtheria, Tetanus and Acellular pertussis (Component) Combined Vaccine (Adsorbed). Both vaccine were immunized according to the 0, 1, and 2 month procedures (calculated as 30 days per month).

Only administer the Diphtheria, Tetanus and Acellular pertussis (Component) Combined Vaccine (Adsorbed) and according to the 0, 1, and 2 month procedures (calculated as 30 days per month).