Stomach Flu Going Around 2024 Mumbai. It causes gastrointestinal symptoms, like stomach pain, diarrhea, nausea and vomiting. Some people experience stomach pain and fever, and symptoms usually start anywhere from 12 to 48.

The stomach flu (norovirus) is an acute form of gastroenteritis, or inflamed stomach or intestinal lining caused by a virus, bacteria or parasite. Norovirus infection, sometimes referred to as stomach flu, is unrelated to the flu caused by the influenza virus.