Stomach Bug 2024 Summer. The stomach flu (norovirus) is an acute form of gastroenteritis, or inflamed stomach or intestinal lining caused by a virus, bacteria or parasite. Norovirus, also called the winter vomiting bug, is a stomach bug that causes vomiting and diarrhoea.
Norovirus, also called the winter vomiting bug, is a stomach bug that causes vomiting and diarrhoea. Norovirus, the highly contagious stomach bug that causes vomiting and.