Stomach Flu 2024. Viral gastroenteritis is an intestinal infection that includes signs and symptoms such as watery diarrhea, stomach cramps, nausea or vomiting, and. Your doctor will likely diagnose viral gastroenteritis (stomach flu) based on symptoms, a physical exam and sometimes on the presence of similar cases in your.

Gastroenteritis can be caused by viruses, most commonly norovirus, bacteria and parasites. What to know about the 2024 norovirus season in the us, symptoms, and prevention.