Fig. 1

Red areas indicate the locations of patients involved in the first Mucorales cluster (n = 7). Floor plans indicate locations of individual patients over the study period of June–August 2014 in red. a. The leukemia unit. Since patients were admitted multiple times over the period of interest into multiple rooms, rooms noted in red are greater than the number of patients in cluster. No specific rooms were identified to be associated with cases. Stars indicate rooms that were designated as negative pressure rooms. Only one patient was placed into a negative pressure room during the period of interest. b. The hematopoietic cell transplant unit. Areas of involvement (red) include intensive care unit rooms, and the blue star indicates the negative pressure rooms. Patients in these rooms were moved to these areas after symptom onset. Only one other room was linked to this episode and included the autologous transplant recipient treated during the study period on this floor; this patient had also spent time on the leukemia unit prior to admission on this floor