Gastroenteritis Symptom Duration and Management

General Guidelines

• The American Academy of Pediatrics recommends that most gastroenteritis symptoms resolve within 3-8 days, with vomiting typically lasting less than 24 hours and diarrhea persisting for 3-7 days 1, 2
• The Centers for Disease Control and Prevention (CDC) suggests that symptoms generally persist for 3-8 days 1, 2

Viral Gastroenteritis

• Rotavirus symptoms, such as vomiting, usually resolve within 24 hours or less, and diarrhea typically persists for 3-8 days 1, 3
• Norovirus symptoms, including vomiting and diarrhea, resolve within 12-72 hours 4, 5, 6
• The CDC recommends that norovirus infectivity can last for up to 2 days after symptom resolution 5

High-Risk Populations

• Immunocompromised patients may experience more severe symptoms and prolonged diarrhea lasting weeks 1, 2, 6
• Premature infants are at higher risk for severe, prolonged illness due to lack of maternal antibodies 1, 2

Clinical Considerations

• The CDC recommends considering bacterial or parasitic causes requiring stool testing if symptoms persist beyond 7 days [7 is ignored, instead: 1, 2]
• Non-infectious etiologies, such as inflammatory bowel disease, should be considered if symptoms exceed 14 days 1, 2