Tape worm inside TV presenter Michael Mosley's gut
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Presenter sees his own tapeworm

30 January 2014 Last updated at 18:11 GMT

TV presenter Michael Mosley has infected himself with a series of parasites in an effort to understand how they affect the human body.

Here, he sees a tapeworm that is living inside him for the first time, via a tiny camera that he swallowed like a pill.

'Michael Mosley: Infested! Living with parasites' will be broadcast in BBC Four's natural history season, starting in February.