Figure 1.

Spot map illustrating case-patient location on the northwestern wing of the eighth floor (8NE) and the seventh floor (7NE) from the 2001 (left panel) and 2003 outbreaks (right panel) at the time of case diagnosis. Patient 3 was in the outpatient clinic at the time of diagnosis and is, therefore, not marked on this inpatient spot map. Patient 5 and 6 resided in the same room at different times. Patients 2, 4, 5, and 6 were moved to a variety of rooms around the time of diagnosis as indicated by their location in multiple rooms.