Spinal poliomyelitis: what to know

Poliomyelitis is caused by poliovirus, which can spread through close contact and contaminated food or water. Many infections cause no clear symptoms, while some cause fever, sore throat, tiredness, nausea or stomach upset. In a small group of affected people, the virus reaches the nervous system and injures motor nerve cells. This can produce severe muscle pain, weakness, reduced reflexes or paralysis, sometimes affecting breathing muscles. Weakness that remains after the initial illness may need long-term rehabilitation and support.

Check that routine vaccinations are up to date, including doses recommended during childhood and any catch-up schedule advised locally. Wash hands carefully after using the toilet and before preparing food, and use safe food and water practices. Anyone with sudden weakness, difficulty walking or new breathing difficulty needs prompt medical assessment. Do not share personal items while an infectious illness is being assessed, and follow public-health advice if exposure is suspected.

Seek emergency care for sudden or worsening weakness, inability to move a limb, difficulty swallowing, choking, or shortness of breath. These signs can indicate nervous-system involvement or weakness of breathing muscles. Fever with neck stiffness, severe muscle pain or a child who becomes unusually floppy also needs urgent assessment. A clinician may arrange neurological examination and testing while considering other causes of weakness.

Are my vaccinations complete for my age and travel plans? Does this pattern of weakness need emergency assessment? Should household contacts check their immunisation records? What infection-control steps should we follow while tests are pending?