Vaccinations at 4 years
Key facts
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At four years, it is recommended that your child has another dose of the combined vaccine that protects against diphtheria, tetanus, pertussis (whooping cough), and polio.
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It is also recommended that your child is vaccinated against influenza 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.