Stomach Flu 2024 Symptoms. Viral gastroenteritis is an intestinal infection that includes signs and symptoms such as watery diarrhea, stomach cramps, nausea or vomiting, and sometimes fever. Symptoms may last up to 72 hours.
According to the oklahoma state department of health, symptoms of the norovirus can last one to three days and include: The most common way to develop viral gastroenteritis โ often called stomach flu โ is through contact with an infected person or by consuming contaminated food or water.