<unk>  is inflammation of the stomach and intestines from a virus. The infection can lead to diarrhea and vomiting. It is sometimes called the "stomach flu."
Viral gastroenteritis
Eosinophilic gastroenteritis
Infectious diarrhea
Hemorrhagic gastroenteritis
Campylobacteriosis
Traveler's diarrhea
Chronic colestites
Norovirus infection