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The Guardian - UK
The Guardian - UK
Politics
Ian Sample Science editor

What is polio, and is the UK public at risk?

A Poliovirus electron micrograph.
A Poliovirus electron micrograph. Photograph: leeds.ac.uk

Routine surveillance has picked up traces of poliovirus in sewage from north and east London, raising concerns that the infection could spread and cause harm, particularly among young children who are not vaccinated against the disease.

What is polio?

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