What should you know about a new polio vaccine?

Polio vaccines train the immune system to recognise poliovirus before a person encounters it. The exact product, schedule and route can vary by age, previous doses, health needs and local programme. Vaccination reduces the chance of serious infection and helps limit spread, but it does not treat weakness or paralysis that has already started. A clinician can check records and explain whether an updated dose is appropriate.

Bring any available vaccination record and tell the clinician about allergies, previous vaccine reactions, immune-system problems, pregnancy or an acute illness. Follow the recommended schedule rather than relying on memory, and keep the record after each dose. Mild soreness, tiredness or a low fever can occur after vaccination; rest, fluids and the clinician’s advice may help.

Contact a healthcare professional if a reaction worries you or lasts longer than expected. Seek emergency help for breathing difficulty, swelling of the face or throat, collapse, or widespread hives soon after vaccination. New weakness, trouble walking, swallowing or breathing is not an expected minor reaction and needs urgent assessment.

Ask which vaccine is being offered, how it fits with previous doses, what side effects to watch for, and whether a current illness or medication changes the timing.