Norovirus winter vomiting bug cases increase in Wales

Cases of the winter vomiting bug norovirus are surging across the country, with numbers significantly higher than the same period last year. Recent weekly figures in the Welsh Government’s surveillance report show a 118% rise in cases compared to the previous week. Although the total number of confirmed cases stands at 35, these are only cases that have been lab-tested, with only a small proportion of community cases verified microbiologically. This increase in cases indicates wider community spread and is notably higher than the previous year.

In the 12-week period leading up to October 6, a total of 276 confirmed norovirus cases were reported in Welsh residents, marking a 128.1% increase compared to the same period in 2023. The age groups most affected were those aged 80 and older, accounting for 82 cases, but Public Health Wales noted a rise in cases linked to schools and children’s nurseries. Public Health Wales has issued advice on reducing cases, emphasising the importance of proper hand hygiene.

Christopher Williams, a consultant epidemiologist at Public Health Wales, highlighted the current trend of gastrointestinal infections, including norovirus, during the autumn and winter months. He advised the public to take steps to minimise the spread of the virus, particularly through regular and thorough handwashing. Williams reiterated that alcohol-based hand sanitisers are ineffective against norovirus and encouraged individuals experiencing symptoms to stay home for at least 48 hours after symptoms have subsided.

Public Health Wales continues to monitor laboratory reports and community outbreaks of norovirus, witnessing an overall increase in cases this year, notably among children in schools and nurseries. Hand hygiene remains crucial in controlling the spread of the virus, and Public Health Wales recommends frequent handwashing with soap and warm water, especially after using the toilet or before eating. For further guidance on protecting against gastrointestinal infections, individuals can visit the NHS 111 website.