Which immunization should be administered by age 6?

Which immunization should be administered by age 6?

• A. Hib
• B. DTaP
• C. HepB
• D. MMR

Answer: (B)

Understanding vaccine schedules helps ensure protection before school entry. The series for diphtheria, tetanus, and pertussis (DTaP) is given in multiple doses throughout early childhood, with a final booster scheduled at 4 to 6 years of age. That final dose sits squarely in the 4–6 year window, so by age 6 the DTaP series should be completed to keep you up to date. Hib doses are typically completed by about 15 months, Hepatitis B is completed by 6–18 months, and the MMR series requires a second dose by 4–6 years. While those vaccines also aim to be current by age 6, the specific reason DTaP is the best answer here is that its final dose is explicitly due in the 4–6 year range, making it the one most clearly required by age 6.

Understanding vaccine schedules helps ensure protection before school entry. The series for diphtheria, tetanus, and pertussis (DTaP) is given in multiple doses throughout early childhood, with a final booster scheduled at 4 to 6 years of age. That final dose sits squarely in the 4–6 year window, so by age 6 the DTaP series should be completed to keep you up to date.

Hib doses are typically completed by about 15 months, Hepatitis B is completed by 6–18 months, and the MMR series requires a second dose by 4–6 years. While those vaccines also aim to be current by age 6, the specific reason DTaP is the best answer here is that its final dose is explicitly due in the 4–6 year range, making it the one most clearly required by age 6.