hemorrhagic colitis -caused by E.coli, most common in children, severe abdominal cramps, vomiting, diarrhea, and a short-lived fever followed by watery, bloody diarrhea. Sources of E.coli; beef, unpasteurized milk, unpasteurized apple juice or cider, raw sprouts, dry cured salami, fresh produce, yogurt, sandwiches, water.
