How is childhood immunisation different in children?

Children receive vaccines at planned ages because protection is needed at different stages of growth. Some vaccines require more than one dose to build or maintain protection. The timing may also depend on a child's previous records, travel plans, medical conditions, or contact with people who are especially vulnerable to infection. A child who misses a dose may not need to restart the whole course; a clinician can review the record and plan catch-up doses. Mild soreness, tiredness, or a short-lived fever can occur after some vaccines, while serious reactions are uncommon and need medical attention.

Bring the child's immunisation record and mention allergies, previous reactions, current illness, long-term conditions, and medicines. Dress the child so the upper arm or thigh is easy to reach. Comfort, fluids, and a calm explanation can help after the appointment. Follow the clinician's advice about observing the child and managing discomfort; do not give medicine in advance unless advised.

Get urgent help if a child develops trouble breathing, swelling of the face or throat, collapse, or widespread hives soon after a vaccine. Contact a clinician for a fever or other symptom that is severe, persistent, or worrying, or if a previous reaction makes you uncertain about the next dose. A mild sore arm alone is usually managed with observation and comfort.

Ask which doses are due, whether any records need checking, what catch-up options exist, which reactions are expected, and how the child's health or travel plans affect timing.