Acute reactions can cause life-threatening volume depletion
Onset of symptoms ~1-6 hours after ingesting culprit (possibly reintroduced after period of not consuming)
Profuse, repetitive vomiting and voluminous diarrhea
Can lead to profound dehydration, shock, severe electrolyte abnormalities
75% of infants with<unk>  appear seriously ill, with ~15% requiring hospitalization for hypotension
Symptoms may be mild-moderate if chronically exposed to offending<unk> 
Chronic watery diarrhea with blood or mucus, vomiting, failure to thrive
Onset of symptoms ~1-6 hours after ingesting culprit (possibly reintroduced after period of not consuming)
Profuse, repetitive vomiting and voluminous diarrhea
Can lead to profound dehydration, shock, severe electrolyte abnormalities
75% of infants with<unk>  appear seriously ill, with ~15% requiring hospitalization for hypotension
Chronic watery diarrhea with blood or mucus, vomiting, failure to thrive
Food protein-induced enterocolitis syndrome
Esophageal stenosis/atresia
Neutropenic enterocolitis 
Pyloric stenosis
Necrotizing enterocolitis
Intestinal stenosis/atresia
HIV diarrhea
Duodenal atresia