Human caliciviruses Etiologic agent Norwalk Epidemiology Pathogenesis Clinical manifestations Immunity Diagnosis Treatment Prevention Rotavirus Etiologic agent Epidemiology Typically presents in those age <5??? ??? ???~?? ??? ?? ??? ??. Pathogenesis Non inflammatory; no fecal leukocytes and erythrocytes. Invades the villous epithelium of the duodenum and proximal jejunum Causes diarrhea via multiple mechanisms including… Villous blunting … Continue reading C198 Viral gastroenteritis