Suspected and laboratory-confirmed reported norovirus outbreaks in hospitals: outbreaks occurring in weeks 27 to 30, 2017
Updated 8 December 2017
The hospital norovirus outbreak reporting scheme (HNORS) recorded six outbreaks occurring between weeks 27 and 30, 2017, all of which led to ward/bay closures or restriction to admissions and two (33 per cent) were recorded as laboratory-confirmed due to norovirus. From week 1 (week beginning 2 January 2017) and week 30 (week beginning 24 July 2017) 205 outbreaks were reported. Ninety-four per cent (149) of reported outbreaks resulted in ward/bay closures or restrictions to admissions and 78% (149) were laboratory-confirmed as due to norovirus.
Suspected and laboratory-confirmed reported norovirus outbreaks in hospitals, with regional breakdown: outbreaks occurring in weeks 27 to 30 of 2017
Region/PHE Centre | Outbreaks between weeks 27 to 30/2017 | Total outbreaks weeks 1 to 30/2017 | ||||
---|---|---|---|---|---|---|
Outbreaks | Ward/bay closure* | Lab-confirmed | Outbreaks | Ward/bay closure* | Lab-confirmed | |
East of England | – | – | – | – | – | – |
East Midlands | – | – | – | 12 | 12 | 12 |
London | – | – | – | 1 | 1 | – |
North East | 2 | 2 | 1 | 31 | 28 | 19 |
North West | – | – | – | 24 | 24 | 19 |
South East | 1 | 1 | – | 19 | 18 | 14 |
South West | 2 | 2 | – | 43 | 41 | 34 |
West Midlands | 1 | 1 | 1 | 47 | 45 | 33 |
Yorkshire and Humberside | – | – | – | 28 | 23 | 18 |
Total | 6 | 6 | 2 | 205 | 192 | 149 |
* Note: not all outbreaks result in whole wards closures, some closures are restricted to bays only.
In the current season to date † (from week 1, 2017, to week 27, 2017), there were 2959 laboratory reports of norovirus. This is 42% lower than the average number of laboratory reports for the same period in the seasons between 2012 and 2016 (4765).
† The norovirus season runs from July to June (week 27 in year 1 to week 26 in year 2) in order to capture the winter peak in one season.
Note: The number of laboratory reports in the most recent weeks will increase as further reports are received. On 1 December 2014 a new laboratory reporting system was commissioned; as a result, direct comparisons between earlier reports (based on LabBase2) and the new system (SGSS) may not be valid.