Final answer:
Hemorrhagic colitis is characterized by fever and bloody diarrhea. Therapy involves supportive measures and antibiotics should only be used in severe cases after ruling out EHEC.
Step-by-step explanation:
Hemorrhagic colitis is characterized by fever and bloody diarrhea. Therapy for this condition is focused on supportive measures such as rehydration, electrolyte replacement, and intravenous fluids. Antibiotics are only indicated in patients with severe enteritis or invasive disease, but should not be administered until enterohemorrhagic Escherichia coli (EHEC) has been ruled out due to the risk of hemolytic uremic syndrome (HUS).