Stomach Bug April 2024 Uk. Norovirus is the most common cause of gastroenteritis worldwide. The stomach flu (norovirus) is an acute form of gastroenteritis, or inflamed stomach or intestinal lining caused by a virus, bacteria or parasite.
This post was last checked and updated in april 2024. Gastric flu, also known as winter vomiting disease, is caused by a contagious virus that results in projectile vomiting and diarrhoea.