epidemic nonbacterial gastroenteritis
Definition: an epidemic, highly communicable but rather mild disease of sudden onset, caused by the epidemic gastroenteritis virus (especially Norwalk agent), with an incubation period of 16–48 hours and a duration of 1–2 days, which affects all age groups; infection is associated with some fever, abdominal cramps, nausea, vomiting, diarrhea, and headache, one or another of which may be predominant.
Synonym(s): acute infectious nonbacterial gastroenteritis
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Examples: glitazone, GI cocktail, etc.