Fig. 1From: High clonal diversity of ESBL-producing Klebsiella pneumoniae isolates from clinical samples in a non-outbreak situation. A cohort studyRep-PCR pattern of ESBL-K. pneumoniae isolates of hospital-acquired infection origin per month and ward. Each square represents the number of isolates; every rep-PCR pattern is represented by a different drawing and number (1–33). All the isolates are labelled according to the ward (W: 5 to 15) or ER (Emergency room) and rep-PCR pattern (number)Back to article page