Norovirus Cases Rise Sharply as HSE Urges Public to Take Precautions

Norovirus cases have increased by more than 50 percent compared to the previous week, according to the Health Service Executive, with 676 cases notified so far this winter.

The HSE has warned that while norovirus is often mild for many people, it can cause serious illness for older adults, young children, and those with underlying health conditions. The increase comes during the peak season for winter viruses, which places additional strain on health and care services.

Dr Paul McKeown, Consultant in Public Health Medicine with the HSE National Health Protection team, said cases have remained high in recent weeks, with a rise in outbreaks in hospitals.

Dr Paul McKeown, Consultant in Public Health Medicine, HSE National Health Protection:

“Norovirus cases have been at high levels in recent weeks and outbreaks in hospitals have increased. It’s not always possible to avoid getting norovirus, but you can help stop the virus spreading.

Wash your hands frequently and thoroughly with soap and water. Stay off work or school for at least 48 hours after your symptoms have passed. You should avoid visiting anyone in hospital or care homes, or going out to socialise while sick, and for 48 hours afterwards.”

Health officials say simple actions can significantly reduce the spread of infection, particularly in healthcare and residential care settings.

Dr Eimear Brannigan, HSE National Clinical Lead for Antimicrobial Resistance and Infection Control, said most cases can be managed safely at home.

Dr Eimear Brannigan, HSE National Clinical Lead for AMRIC:

“Norovirus, for most people, is an unpleasant but mild illness that passes off quickly without any treatment. It can usually be managed at home, drinking plenty of fluids is usually all that is needed.

If you have vomiting or diarrhoea symptoms, do not visit hospitals, nursing homes, or vulnerable people at home. Outbreaks in hospitals and nursing homes can cause serious disruption and increase risks for patients and staff. Your actions make a difference.”

Key Advice to Prevent the Spread of Norovirus

People experiencing vomiting or diarrhoea are advised to stay at home and avoid work, school, social activities, and visits to hospitals or care homes for at least 48 hours after symptoms have fully resolved.

Those who are unwell should avoid Emergency Departments where possible, and instead contact a GP or pharmacist by phone for advice. However, anyone who feels seriously unwell should still attend an Emergency Department and inform staff on arrival so appropriate precautions can be taken.

Regular handwashing with soap and water is strongly recommended, along with thorough cleaning and disinfection of surfaces using a bleach-based household cleaner. Clothing or bedding that may be contaminated should be washed separately on a hot cycle, and towels or face cloths should not be shared.

The HSE also advises flushing and cleaning toilets carefully after any vomiting or diarrhoea, and avoiding raw or unwashed food produce during illness.

More information on norovirus symptoms, treatment and prevention is available on the HSE website at hse.ie/conditions/norovirus.

Details on urgent and emergency care options can be found at hse.ie/services/find-urgent-emergency-care.