(a) Frequencies of cipror bacteria, ESBL-producing Enterobacteriaceae, CRE, and CRNF after positive immediately previous culture. (b) Frequencies of cipror bacteria, ESBL-producing Enterobacteriaceae, CRE, and CRNF after any positive previous culture. Cipro-R, ciprofloxacin-resistant bacteria; CRE, carbapenem-resistant Enterobacteriaceae; CRNF, carbapenem-resistant nonfermenters; ESBL, extended-spectrum-beta-lactamase-producing Enterobacteriaceae.