- The participant presents with at least 3 episodes of non-bilious, non-bloody vomiting within the 24 hours prior to visiting the physician's office. The participant has at least 2 signs and symptoms other than vomiting consistent with acute gastroenteritis (AG) (example, fever, nausea, diarrhea, abdominal pain, bloating, or discomfort) within 3 hours prior to visiting the physician's office