Dublin: The Health Service Executive (HSE) has issued a warning about the increasing spread of norovirus across Ireland, with cases expected to rise further over the Christmas and New Year period.
Norovirus, commonly known as the winter vomiting bug, causes gastroenteritis, leading to symptoms such as vomiting and diarrhoea. It spreads very easily through close contact, contaminated surfaces, and food, making outbreaks difficult to control once established.
The HSE confirmed that norovirus infections are rising rapidly at a time when the health system is already under pressure due to a surge in influenza cases. Outbreaks in hospitals and nursing homes have created additional challenges, increasing risks to vulnerable patients and healthcare staff. While the illness can be extremely unpleasant, most people recover within a few days without medical treatment.
Public Health Advice: Stay Home if Unwell
The HSE has urged the public to follow strict infection-control measures to limit the spread of the virus. People experiencing vomiting or diarrhoea are advised not to visit hospitals, nursing homes, or vulnerable individuals at home. Social visits to care settings should be avoided when unwell.
Individuals should remain at home for at least 48 hours after symptoms have completely resolved. Those with vomiting or diarrhoea are advised not to attend emergency departments unless symptoms become severe. Instead, they should contact their GP or pharmacist by phone. If emergency care is required, patients should inform staff upon arrival that they have gastrointestinal symptoms.
Hygiene Measures Strongly Recommended
The HSE emphasised the importance of thorough handwashing with soap and water, noting that alcohol-based hand gels are ineffective against norovirus. Contaminated surfaces should be cleaned with bleach-based disinfectants, while clothing and bedding should be washed separately at high temperatures. Towels and facecloths should not be shared, and toilets should be disinfected frequently. Eating raw or unwashed food should also be avoided.
Risk of Re-Infection Remains High
Health officials warned that norovirus can return even after recovery, as the virus mutates frequently and does not allow for long-term immunity. Although it is more common in winter, infection can occur at any time of the year.
Symptoms typically develop within one to two days of infection and may include vomiting, diarrhoea, mild fever, headache, stomach pain, and muscle aches. The illness usually lasts up to three days. As there is no specific treatment, patients are advised to rest, stay hydrated, and allow the illness to run its course. Antibiotics are not effective against the virus.
The HSE has called on the public to remain vigilant and follow guidance carefully to help protect healthcare services and vulnerable members of the community during the festive season.
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