A 25-years-old women who received a bone marrow transplant as treatment for a plastic anemia had the following presenting symptoms: fever, chills, and malaise of about 2 days duration. Blood cultures were drawn. The patient was admitted, and about 5 hours later, another two sets were sent to the lab because her fever persisted. At this point, the patient was given broad spectrum antibiotics, with the plan to give her antifungal if the fever persisted. About 12 hours later the first blood culture drawn, the clinician was called because 2 of 2 blood cultures tested positive for a gram-negative bacillus. In another 4 hours the other two sets tested positive for what appeared to be the same organism. The next day the clinician was informed that the gram negative bacillus had tested negative for lactose fermentation and tested positive for oxidase. The isolate would be further worked up for identification and susceptibility