Stomach Bug 2024 South Africa. Diarrhoeal disease is a common and often highly infectious condition that affects the stomach and intestines. Norovirus, also called the winter vomiting bug, is a stomach bug that causes vomiting and diarrhoea.

While most cases resolve in three to four days, it’s not uncommon to feel. The symptoms of the stomach flu range from minor aches to debilitating stomach pain and most often present as the following: