A nurse at the well-baby clinic is preparing to give an immunization vaccine to an 18-month-old child. Which vaccine should the nurse prioritize for administration?

A. Rotavirus is given earlier in infancy, typically before 8 months of age, and is not a priority at 18 months. B. Influenza is important but is given seasonally, and the child is not necessarily due for this vaccine at 18 months unless indicated. C. DTaP is a routine vaccine administered at 18 months as part of the series of childhood immunizations. D. MMR is given at 12-15 months and again at 4-6 years, so it is not typically prioritized at 18 months if the child has already received it.