HPA update on seasonal norovirus activity: 8 January 2013

HPA update on seasonal norovirus activity: 8 January 2013: Latest figures from the Health Protection Agency (HPA) show there have been 4,140 laboratory confirmed cases of norovirus this season (from week 27 to week 52 2012). The latest figures are 63 per cent higher than the number of cases reported at this point last year, when there were 2,535 cases.