Contagious Acute Gastrointestinal Infections

Abstract
The epidemiology of acute gastrointestinal illness is complex. The relevant infectious agents may spread from person to person or they may be acquired from a common food or environmental source, often water, but also from animal exposure. This article examines direct human-to-human spread of acute gastrointestinal illness, defined as a syndrome of vomiting, diarrhea, or both that begins abruptly in otherwise healthy persons and is most often self-limited.

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