Dr Tom Cullen
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Big rise in cases of winter sickness bug

19 December 2012 Last updated at 17:50 GMT

There's been a big rise in cases of norovirus - often known as the winter sickness bug.

The Health Protection Agency reckons there have been about 880,000 cases in England and Wales since the summer, 83% more than the same time last year.

Dr Tom Cullen visited Newsround to explain how to avoid catching it!

Find out more about the winter sickness bug