Stomach Flu Symptoms 2024 Adults. Read about viral gastroenteritis, also called “stomach flu,” an infection of the intestines that causes diarrhea, abdominal pain, and other symptoms. It is possible to have a stomach virus without vomiting or diarrhea or to have no symptoms at all.
Fortunately, it usually resolves within a. Gastroenteritis often happens when you get an infection in your gastrointestinal (gi).