Fig. 2

A description of the patients and the times at which extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBL-E) were isolated in our unit. Patients’ characteristics (age, gender, and diseases) are shown. A unique strain number was provided according to the room number. “K” denotes K. pneumoniae isolates, and “E” indicates E. coli isolates. The types of clinical specimens (blood, urine, oral, and stool) are indicated by red, yellow, green, and brown boxes, respectively. The four control strains, comprising clinically distinct isolates, are shown at the bottom of the list. The rightmost row (row in dark) presents the results of surveillance performed at the end of the outbreak