Symptoms & Causes of Viral Gastroenteritis (“Stomach Flu”) | NIDDK - stomach viruses in adults

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Gastroenteritis In Adults - Harvard Health stomach viruses in adults


Viral gastroenteritis is an intestinal infection marked by watery diarrhea, abdominal cramps, nausea or vomiting, and sometimes fever. The most common way to develop viral gastroenteritis — often called stomach flu —is through contact with an infected person or by ingesting.

The stomach flu is caused by a virus that attacks your gastrointestinal system. It's common to experience symptoms such as chills, fever.

If you have the stomach bug, also known as viral gastroenteritis, you may have one or more of the following symptoms.