Norovirus cases are on the rise again with the arrival of colder autumn evenings, particularly affecting a vulnerable group. Parents are advised to keep their children away from school for 48 hours if they exhibit any symptoms of the stomach bug, as recent data from the UK Health Security Agency (UKHSA) indicates that infections are most prevalent among children aged 0 to 4 years.
The virus, which spreads through close contact, touching contaminated surfaces, or consuming tainted food, usually causes severe vomiting and diarrhea for approximately two days, though it can persist longer, especially in vulnerable individuals such as young children, the elderly, and those with weakened immune systems.
Recent figures from the UKHSA reveal a noticeable increase in positive laboratory tests for norovirus in England since late September, with some fluctuations in recent weeks. Health experts stress the importance of simple preventive measures to curb further spread, including regular handwashing.
Amy Douglas, Lead Epidemiologist at UKHSA, emphasizes the need for vigilance in preventing norovirus transmission, especially among children. She advises keeping symptomatic children home from school or nursery until 48 hours after symptoms subside and encourages infected individuals to refrain from work or food preparation for the same duration. Additionally, avoiding visits to hospitals and care homes can help shield vulnerable populations from infection.
Effective preventive actions include thorough handwashing with soap and warm water, using bleach-based cleaners on surfaces, and avoiding reliance on alcohol gels alone, as they do not effectively eliminate norovirus. Common symptoms of norovirus encompass nausea, vomiting, diarrhea, high fever, abdominal discomfort, and muscle aches.
Dehydration is a concern, particularly for vulnerable groups, during norovirus illness, underscoring the importance of staying hydrated. Individuals displaying norovirus symptoms should stay home from school or work and refrain from visiting hospitals or care facilities.
While most cases resolve within two days, seeking medical advice is advisable if a child stops feeding, experiences prolonged diarrhea or vomiting, or shows signs of severe illness.