Norovirus Surge: UK Health Agency Urges Public to Stay Home
Health authorities in the UK are urging individuals to stay home and avoid contact with vulnerable populations as norovirus cases continue to circulate. The UK Health Security Agency (UKHSA) and NHS officials are recommending preventative measures similar to those used during the peak of the COVID-19 pandemic to curb the spread of the highly transmissible virus, commonly known as the winter vomiting bug.
What is Norovirus?
Norovirus is a stomach bug that causes vomiting and diarrhoea [1]. Whereas often referred to as the “winter vomiting bug,” it can be contracted year-round, including during the summer months.
Current Situation in England
Norovirus cases in England are currently more than double the expected number for this time of year [3]. As of January 30, 2025, 898 hospital beds were occupied on average each day by patients experiencing norovirus-like symptoms, a 15% increase from the previous week [3]. Recent data indicates that norovirus activity has increased in recent weeks, but remains lower than the 5-season average [1]. Total norovirus laboratory reports between weeks 48 and 49 of 2025 were 16.1% lower than the 5-season average for the same 2-week period [1].
Symptoms and Recovery
Symptoms of norovirus typically appear suddenly and include nausea, vomiting, and diarrhoea. Other symptoms can include fever, headaches, abdominal pain, and body aches. Most people recover within two to three days, while some may experience fatigue for up to a week.
Preventing the Spread
The UKHSA emphasizes the importance of self-isolation to prevent further transmission. Individuals experiencing symptoms are advised to stay home and avoid returning to function, school, or nurseries until 48 hours after their symptoms have stopped. They should also refrain from preparing food for others during this period. Visiting hospitals and care homes while unwell is also discouraged to protect vulnerable individuals.
Hand Hygiene and Disinfection
Effective prevention relies on proper hygiene practices. Authorities recommend washing hands frequently with soap and warm water and using bleach-based products to clean surfaces. Notably, alcohol-based hand sanitizers are not effective against norovirus [3].
Impact on Healthcare Settings
Hospitals and care homes are particularly vulnerable to norovirus outbreaks. Outbreaks can lead to ward closures, as seen recently at West Suffolk Hospital [3]. The UKHSA continues to monitor activity closely, with a focus on hospital settings and cases among older adults [1].
Managing Illness at Home
The NHS recommends managing norovirus at home by staying hydrated to prevent dehydration.
Reporting Outbreaks
NHS laboratories are encouraged to refer norovirus-positive samples to the national reference laboratory to monitor circulating strains and detect new variants [4]. Reporting outbreaks through the online surveillance tool HNORS provides a timely quantification of norovirus activity in NHS hospitals [4].