Inclusion Criteria:

- Aged from 6 to 8 years on the day of inclusion

Exclusion Criteria:

• Participation in another clinical trial in the 4 weeks preceding the trial vaccination
• Planned participation in another clinical trial during the present trial period
• Congenital or acquired immunodeficiency, immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the preceding 6 months, or long term systemic corticosteroids therapy

• Systemic hypersensitivity to any of the vaccine components or history of a life-threatening reaction to the trial vaccine or a vaccine containing the same substances with specific focus on subjects who had, after previous administration of DTP or DTaP vaccine, one of the following adverse events

  1. encephalopathy not attributable to another identifiable cause within 7 days of administration of a previous dose
  2. temperature of > 40.5°C within 48 hours not due to another identifiable cause
  3. collapse or shock-like state (hypotonic-hyporesponsive episode) within 48 hours
  4. persistent, inconsolable crying lasting > 3 hours, occurring within 48 hours
  5. seizure with or without fever occurring within 3 days
• Chronic illness at a stage that could interfere with trial conduct or completion.
• Blood or blood-derived products received in the past 3 months
• Any vaccination in the 4 weeks preceding the trial vaccination (except OPV)
• Any vaccination planned during the present trial period (except OPV)
• History of diphtheria and/or tetanus and/or pertussis infection (confirmed either clinically, serologically or microbiologically)
• Previous fifth vaccination against diphtheria and/or tetanus and/or pertussis infection with the trial vaccine or another vaccine
• Clinical or serological evidence of systemic illness including Hepatitis B, C or HIV
• Thrombocytopenia or a bleeding disorder contraindicating intramuscular vaccination
• History of/current seizures
• Febrile illness (axillary temperature ≥ 37.4°C) or acute illness on the day of inclusion