What vaccines are typically given at 4 years of age?

At 4 years of age, children typically receive a combination of vaccines designed to boost their immunity to several serious diseases. The vaccines included in the recommended schedule at this age are primarily aimed at continuing protection against diphtheria, tetanus, pertussis (whooping cough), poliovirus, and measles, mumps, and rubella.

Diphtheria, tetanus, and pertussis are often provided in combination as a single injection (commonly referred to as the DTaP vaccine), ensuring that children receive protection against these three illnesses simultaneously. The polio vaccine is also administered at this age to enhance immunity against poliomyelitis.

In addition to these, the measles, mumps, and rubella vaccine is typically given in a single injection known as the MMR vaccine, which is essential for preventing these highly contagious viral diseases.

The combination of these vaccines at 4 years of age is crucial as it continues building on the initial immunizations received earlier in childhood, providing a booster effect that is vital for long-term immunity.

Other options either contain incomplete combinations or include vaccines not typically administered at this specific age, thus reinforcing that option D is the most accurate representation of the vaccinations usually given to children at