Stomach Bug Symptoms 2024 Uk. Norovirus is a stomach bug that most commonly causes vomiting, diarrhoea and severe dehydration. There are six key symptoms of norovirus to look out for, according to professor saheer gharbia, gastrointestinal pathogens and food safety directorate at uk.
It can be very unpleasant, but usually goes away in about 2 days. Sometimes, the stomach bug may go away after 24 hours.