This document discusses acute gastroenteritis (AGE), also known as infectious diarrhea, in pediatric patients. It defines AGE and different types of diarrhea such as acute, chronic, and intractable. The most common causes of AGE in children are rotavirus, Salmonella, Campylobacter, and other bacterial, viral, and parasitic pathogens. Signs and symptoms include diarrhea, vomiting, fever, and dehydration. Treatment involves oral rehydration, monitoring for dehydration, and nutritional support. Nursing care focuses on fluid and electrolyte management, preventing spread of infection, and supporting nutrition.