Vaporiser machine nicknamed the 'Dalek'
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'Dalek' cleaner cutting hospital infection in north Wales

29 July 2014 Last updated at 15:07 BST

A fleet of Dalek-style robots is deep-cleaning the hospital wards of north Wales after an outbreak of Clostridium difficile (C. diff).

The robots are part of a structured cleaning plan by Betsi Cadwaladr health board in a bid to reduce the number of infections at its hospitals.

It apologised in 2013 for its failure to control C. diff at Glan Clwyd hospital in Bodelwyddan.

A follow-up report says the number of infections is "still too high".

Chris Dearden reports.