DTP vaccine

Routine vaccination:

• Minimum age: 6 weeks
• The first booster (4th dose) may be administered as early as age 12 months, provided at least 6 months have elapsed since the third dose.
• DTwP induces a superior priming response compared to DTaP.
• DTaP may be preferred to DTwP in children with history of severe adverse effects after previous dose/s of DTwP or children with neurologic disorders.
• ACVIP does not approve the use of Tdap as second booster of DTP schedule!

Catch-up vaccination

• Catch-up schedule: The 2nd childhood booster is not required if the last dose has been given beyond the age of 4 years
• Catch up below 7 years: DTwP/DTaP at 0, 1 and 6 months;
• Catch up above 7 years: Tdap, Td, and Td at 0, 1 and 6 months respectively.