What should you know about a tetanus, diphtheria and polio booster?

Tetanus bacteria can enter damaged skin and produce a toxin that causes muscle stiffness and spasms. Diphtheria can affect the throat and breathing passages, while polio is a viral infection that can affect the nervous system. The combined vaccine presents harmless components to the immune system so it can respond more effectively if exposure occurs.

A booster is not used to cure an active infection. It refreshes earlier protection, and the suitable product depends on age, previous doses, health conditions, travel plans and local immunisation guidance.

Take your immunisation record to the appointment and mention previous reactions, pregnancy, immune problems, or medicines that affect immunity. Tell the vaccinator if you are acutely unwell. After the injection, temporary arm tenderness, mild fever or tiredness may occur. Rest, drink fluids and follow the advice provided for symptom relief.

Do not use antibiotics to prevent these vaccine-preventable infections unless they are prescribed for a separate bacterial problem. Keeping childhood doses and later boosters documented helps the clinician decide what is due.

Get emergency help for breathing difficulty, facial or throat swelling, fainting that does not quickly settle, or widespread hives after vaccination. Seek medical advice for a persistent high fever, worsening illness, or neurological symptoms such as new weakness. A sore throat with breathing difficulty or inability to swallow saliva also needs urgent assessment.

Ask which doses are recorded, whether a combined booster suits you, how travel or pregnancy affects timing, and what to do if your records cannot be found.