Norovirus: Chaos as winter vomiting cases hit 750,000 and force hundreds of wards to close

Chaos as winter vomiting cases hit 750,000 and force hundreds of wards to close New figures show number of cases 72 per cent higher than last DecemberMore than 300 hospital wards in England and Wales have been closed to new patients since outbreak beganA total of 43 have been shut in the past two weeks aloneSchools across the UK have been affected, with one south-west London primary reporting 'unprecedented' numbers of pupils off sick | UPDATED: 11:34 GMT, 13 December 2012 Hundreds of hospital wards have been forced to close due to the spread of the winter vomiting bug, as fears grow that this winter's outbreak could prove to be the worst on record.