Acute Diarrhea (<4 weeks’ duration)
|Acute Infectious Etiologies (NEJM 2014;370:1532; JAMA 2015;313:71; CDC Yellow Book 2018)|
|NONINFLAMMATORY||Predom. disruption small intestine absorp. & secretion. Voluminous diarrhea, N/V. ⊖ Fecal WBC & FOB.|
|Preformed toxin||“Food poisoning,” <24 h dur. S. aureus (meats & dairy),
B. cereus (fried rice), C. perfringens (rewarmed meats).
|Viral (Lancet 2018; 392:175)||Rotavirus||Outbreak person to person (PTP), daycare; lasts 4–8 d.|
|Norovirus||~50% of all diarrhea. Winter outbreaks; PTP & food/water;
no immunity. Lasts 1–3 d. Vomiting prominent.
|Bacterial||E. coli (toxigenic)||>50% of ler’s diarrhea; cholera-like toxin; <7 d.|
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