A dramatic spike in cases of the highly contagious norovirus, commonly known as the winter vomiting bug, has pushed numerous NHS hospitals in England to declare a state of critical incident. Health officials are issuing a stark reminder about a fundamental mealtime rule to help control the outbreak.
Sharp Rise in Infections Strains NHS
Latest figures reveal a concerning acceleration in norovirus infections across hospital settings. According to data, reported cases in NHS hospitals in England jumped by 57 per cent in the week ending January 11, 2026, rising from 361 to 567. Broader surveillance by the UK Health Security Agency (UKHSA) indicates a 47 per cent increase in cases in the first two weeks of 2026 compared to the final fortnight of December.
This surge, combined with persistently high flu levels, has created severe pressure on hospital capacity. The British Medical Journal reports that at least ten NHS trusts in England have declared critical incidents due to "high demands and capacity issues." In Wales, the Aneurin Bevan University Health Board has also taken the same step.
The Vital Rule to Curb the Spread
Norovirus is an unpleasant stomach bug causing sudden onset vomiting and diarrhoea, often accompanied by a high temperature, headache, and aching limbs. It spreads with alarming ease through contact with contaminated surfaces, food, water, or infected individuals.
The NHS emphasises that one of the most effective defences is simple but non-negotiable: washing hands thoroughly with soap and water before preparing, serving, or eating any food. Alcohol-based hand gels are not effective against this particular virus.
Other crucial hygiene steps include:
- Washing hands with soap and water after using the toilet or changing nappies.
- Washing contaminated clothing or bedding separately on a hot 60C cycle.
- Regularly cleaning toilet seats, taps, and door handles.
- Staying off work, school, or nursery until 48 hours after symptoms stop.
- Avoiding hospitals and care homes during this period.
When to Seek Medical Advice
While most people recover at home within two days, the NHS advises calling 111 for advice if certain warning signs appear. These include signs of dehydration in young children or the elderly, an inability to keep fluids down, bloody diarrhoea, or if symptoms persist for more than a few days.
The list of NHS trusts in England that have recently declared critical incidents includes East Suffolk and North Essex, South Warwickshire University, University Hospitals of North Midlands, Nottingham University Hospitals, and Sherwood Forest Hospitals. Others are Ashford and St Peter’s, Royal Surrey, Epsom and St Helier, Surrey and Sussex Healthcare, and East Kent Hospitals University NHS Foundation Trust.
The situation underscores the intense seasonal pressure on health services and the critical role of public hygiene in managing the spread of infectious illnesses.
