Fulminant septic shock associated with Capnocytophagia canimorsus bacteremia developed in a 54-year-old asplenic man, a heart transplantation candidate who was supported with a HeartMate II left ventricular assist system, after he experienced a dog bite. He improved after administration of broad-spectrum antibiotics, which were narrowed to ampicillin/sulbactam for a prolonged 6-week course, and subsequently recovered fully.
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