Norovirus Circulating at 'Very High Levels' Across Ireland, Health Authorities Warn

Ireland's Health Protection Surveillance Centre (HPSC) has issued a warning that norovirus is currently circulating at very high levels across the country, with hospitals and care facilities urged to implement strict hygiene protocols to prevent outbreaks. The HPSC confirmed on Wednesday that the highly contagious winter vomiting bug — which causes sudden onset vomiting, diarrhoea, nausea, and stomach cramps — is spreading widely, with cases reported across all age groups and regions. Norovirus is one of the most common causes of gastroenteritis in Ireland and can spread rapidly in enclosed settings such as hospitals, nursing homes, schools, and childcare facilities. The virus is transmitted through contact with infected individuals, contaminated surfaces, or food and water. Health authorities are urging anyone experiencing symptoms to stay at home and avoid contact with vulnerable people, particularly the elderly and those with underlying health conditions. People are advised not to visit hospitals or care homes while symptomatic and to wait at least 48 hours after symptoms have resolved before returning to normal activities. The HPSC is reminding the public that thorough and frequent handwashing with soap and water — not hand sanitiser alone — is the most effective way to prevent the spread of norovirus. Surfaces should be cleaned with a bleach-based disinfectant, and any soiled clothing or bedding should be washed at high temperatures. Dr Lynda Sisson, a consultant in public health medicine, said the current levels were 'notably high for this time of year' and urged people to take the warning seriously. 'Norovirus can be very unpleasant and can cause serious complications for vulnerable groups. The best thing people can do is stay home if they are unwell and wash their hands regularly,' she said. The HSE has also reminded healthcare workers to follow infection prevention and control guidelines to protect patients and colleagues.