Stomach flu, viral gastroenteritis, is a viral infection in your digestive system.
According to Clevelend clinic. it causes gastrointestinal symptoms like vomiting and diarrhea. It’s usually brief, but can be very contagious.
Stomach flu causes gastrointestinal (GI) symptoms like diarrhea, abdominal cramps and nausea.
You might also call it a “stomach bug.” A stomach bug isn’t always a virus — sometimes it’s bacteria or a parasite — but in any case, the symptoms are similar.
You might not be able to tell if your bug is a virus or not.
