Which vaccine set is routinely due at the 4–6 year well-child visit?

• A. DTaP, IPV, MMR, Varicella
• B. DTaP, IPV, HepA, PCV
• C. Hep B, Rotavirus, DTaP, Hib
• D. DTaP, IPV, HepA, HepB

Answer: (A)

At the 4–6 year well-child visit, the vaccines typically due are the boosters for diphtheria, tetanus, and acellular pertussis (DTaP), polio (IPV), and the two live vaccines for measles, mumps, and rubella (MMR) and varicella. This combination reflects the kindergarten-entry immunization schedule, where the DTaP and IPV boosters help maintain protection against these diseases, and the second doses of MMR and Varicella complete the two-dose series for those illnesses.

Other vaccines listed (HepA, HepB, Rotavirus, Hib, PCV) are generally given earlier in infancy or toddler years, or are not routinely due at the 4–6 year visit unless there’s a catch-up need. Therefore the set that aligns with routine vaccination at this age is DTaP, IPV, MMR, and Varicella.