What to know about flu vaccination in children

The vaccine trains the immune system to recognise influenza strains. Protection is not immediate and influenza viruses change, so vaccination is offered seasonally according to local guidance. A vaccinated child may still catch a respiratory infection, but the illness may be less severe. Mild soreness, tiredness, or a short-lived fever can occur after vaccination. The vaccine cannot cause influenza.

Ask the child's clinician or vaccination service which product is appropriate and whether more than one dose is needed for the child's age and previous vaccination history. Share details of allergies, past vaccine reactions, immune problems, long-term conditions, and current illness. Keep the child comfortable after the appointment and follow the service's advice for fever or discomfort. Vaccination is one layer of protection alongside hand hygiene, ventilation, and staying home when unwell.

Ask for medical advice before vaccination if the child is acutely unwell, has had a serious allergic reaction to a previous dose or vaccine ingredient, or has a condition affecting immunity. Seek urgent help after vaccination for breathing difficulty, facial or throat swelling, collapse, widespread hives, or a rapidly worsening reaction. A sore arm or mild fever usually needs observation and the recommended comfort measures.

Which influenza vaccine is suitable for my child? How many doses are needed this season? Does an allergy or chronic condition change the plan? What symptoms after vaccination should prompt a call?