He added that the venue had subsequently undergone a deep-clean.

Monmouthshire council said classrooms at the school were now undergoing a 'deep-clean' before the school reopens.

The school staff said The Dell would reopen at 10:00 GMT on Friday after the precautionary deep-clean of classrooms was completed.

Healthcare experts cast doubt this week on whether the most recent plan — a deep-clean of all hospitals announced by Mr Brown last autumn — would do any good.

An investigation is under way to find the source of the E coli and a deep-clean is taking place at the unit to ensure no other babies are at risk.

Then you get your expert at an Austrian spa (oh, we've all got one) to apply leeches to your body and off the little critters go to give your blood a deep-clean.

A Bristol facility was briefly shut down for a precautionary deep-clean; more tellingly, Greencore stated, just last Monday, that it was looking to "validate and reinforce" its supply chain.

A portrait of Napoleon Bonaparte sold at auction for £15,000 could be worth more than 100 times that after a deep-clean showed it to be the work of one of France's most celebrated painters.