A patient presents to clinic with a skin and soft tissue infection. The provider gives empiric coverage with one agent, 300mg every six hours. The patient is reassured that this one drug will cover all usual skin and soft tissue bacteria. Unfortunately, she presents a week later complaining of severe watery diarrhea 10-15 times daily with lower abdominal cramping. She has a temperature of 38.5 and a WBC count of 16,000. Pathology would show the finding above.
Challenge: What's the diagnosis?
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