Table 2. Etiology of Prolonged Diarrhea in children.

HIV: human immunodeficiency virus.

Infections
Viruses
Rotavirus      Norovirus      Sapovirus      Astrovirus      Cytomegalovirus (HIV-infected children)
Bacteria
Shigella      Enteroaggregative E. coli (EAgg EC)      Enteropathogenic E. coli (EPEC)      Clostridium difficile      Campylobacter      Yersinia      Mycobacterium avium complex (HIV-infected children)
Parasites
Cryptosporidium      Giardia lamblia      Cyclospora      Entamoeba histolytica
Small Intestine Bacterial Overgrowth – SIBO
Underlying malnutrition
Vitamins and Micronutrients deficiency (Zinc, Vitamin A)
Food-induced diarrhea
Lactose intolerance      Carbohydrate malabsorption      Cow-milk protein intolerance      Food allergy      Celiac disease
Antibiotic-associated diarrhea