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When a cold is a flu and how to treat both

5 November 2012 Last updated at 11:25 GMT

You wake up sweaty, bunged up and your throat hurts.

Time to call in sick or do you struggle in regardless? A new study has suggested one in three of us feels pressurised to go to work if we have flu-like symptoms. But should we be going in?

Virologist Professor John Oxford is flu expert at Queen Mary Hospital, at the University of London.