Case Presentation: A 58-year-old man with history of heavy tobacco use, presented to the emergency department with intermittent watery nonbloody diarrhea for 4 days, associated with worsening confusion and decreased urine output. He denied recent traveling or sick contacts. On examination he was found to be febrile (102.6F), hypertensive, tachycardic (102bpm) and tachypneic (22rpm) and [...]