What should you know about epidemiology of poliomyelitis?

The virus can multiply in the intestine and leave the body in stool. It may spread when hygiene and sanitation are limited, and an infected person can pass it on without feeling unwell. In some people, infection reaches the nervous system and causes weakness or paralysis. Children who have not completed recommended immunisations are especially vulnerable, but adults without protection can also become infected.

Transmission falls when communities maintain vaccination coverage and use safe water, handwashing, and effective sanitation. International travel can bring the virus into areas where it is not routinely circulating, so vaccine advice may depend on destination and personal history.

Check that children and adults in your household are up to date with the immunisation schedule. Keep vaccination records available, particularly before travel. Wash hands carefully after using the toilet and before preparing or eating food, and use treated water where water safety is uncertain. Do not share personal items during an illness involving diarrhoea.

If you may have been exposed, contact a healthcare professional promptly for advice about symptoms, immunisation, and precautions. There is no home treatment that removes the virus, so prevention and early medical guidance matter.

Seek urgent medical help for sudden limb weakness, difficulty walking, trouble swallowing, breathing difficulty, or marked neck or back stiffness. A child with weakness, unusual floppiness, or loss of movement needs immediate assessment. Fever with severe headache or new neurological symptoms also warrants urgent care.

Ask whether your immunisation record is complete, whether a travel booster is advised for your destination, and what symptoms should prompt same-day assessment after a possible exposure.