HPA update on seasonal norovirus activity: 28 December 2012

HPA update on seasonal norovirus activity: 28 December 2012: Latest figures from the Health Protection Agency (HPA) show there have been 3,538 laboratory confirmed cases of norovirus this season (from week 27 to week 50 2012), up from 3,046 cases last week. The latest figures are 83 percent higher than the number of cases reported at this point last year (the same increase as was reported last week), when there were 1,934 cases.