Overview

• The UK Health Security Agency warned on X that people remain infectious for 48 hours after symptoms stop and should stay home during that period.
• The NHS says symptoms start suddenly with nausea, vomiting and diarrhoea, and most cases resolve within one to three days.
• People with symptoms should avoid school, work, hospitals and care homes until 48 hours after they stop, as the virus spreads easily via close contact, contaminated surfaces and food.
• Handwashing with soap and water is advised because alcohol gels do not kill norovirus, with guidance to disinfect with bleach and wash soiled laundry at 60C.
• UKHSA data show 16,679 lab-reported cases in England from late May to late June—124% above the five-season average—with higher risk for young children, older adults and those with weakened immunity.