Suspected and laboratory-confirmed reported norovirus outbreaks in hospitals: outbreaks occurring in weeks 22 to 26, 2017
Updated 8 December 2017
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The hospital norovirus outbreak reporting scheme (HNORS) recorded four outbreaks occurring between weeks 22 and 26, 2017, three of which (75 per cent) led to ward/bay closures or restriction to admissions and two (50 per cent) were recorded as laboratory-confirmed due to norovirus. From week 1 (week beginning 2 January 2017) and week 26 (week beginning 26 June 2017) 195 outbreaks were reported. Ninety-three per cent (182) of reported outbreaks resulted in ward/bay closures or restrictions to admissions and 80% (145) were laboratory-confirmed as due to norovirus.
Suspected and laboratory-confirmed reported norovirus outbreaks in hospitals, with regional breakdown: outbreaks occurring in weeks 22 to 26 of 2017
| Region/PHE Centre | Outbreaks between weeks 22 to 26/2017 | Total outbreaks weeks 1 to 26/2017 | ||||
|---|---|---|---|---|---|---|
| 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 | 1 | 1 | – | 26 | 25 | 18 |
| North West | – | – | – | 24 | 24 | 19 |
| South East | – | – | – | 18 | 17 | 14 |
| South West | 2 | 2 | 2 | 38 | 36 | 32 |
| West Midlands | – | – | – | 46 | 44 | 32 |
| Yorkshire and Humberside | 1 | – | – | 28 | 23 | 18 |
| Total | 4 | 3 | 2 | 195 | 182 | 145 |
* 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 26, 2017), there were 2764 laboratory reports of norovirus. This is 44% lower than the average number of laboratory reports for the same period in the seasons between 20012 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.