What vaccines are recommended now my child is four years?

Now your child is four years old, it is recommended that your child has another dose of the combined vaccine that protects against diphtheria, tetanus, pertussis (whooping cough), and polio. It is also recommended that your child gets an influenza vaccine every year before the influenza season. Influenza vaccines are free for all children aged six months to under five years and can be given at the same time as age-specific vaccines.