Stomach Bug 2024 Map Uk. Norovirus is a stomach bug that most commonly causes vomiting, diarrhoea and severe dehydration. Norovirus, also called the winter vomiting bug, is a stomach bug that causes vomiting and diarrhoea.
It can be very unpleasant, but usually goes away in about 2 days. The most common symptoms of norovirus are diarrhea, vomiting, stomach pain, and nausea.