Q&A: Norovirus

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Norovirus
Image caption,

The Health Protection Agency says there has been a 72% increase in cases on last year

Wards in hospitals across the UK have been closed to visitors to try to prevent the spread of winter vomiting bug norovirus, which causes sudden vomiting and diarrhoea. What is it?

What is it?

What are the symptoms?

How does it spread?

What is the treatment?

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