Changing prevalence of Escherichia coli with CTX-M-type extended-spectrum beta-lactamases in outpatient urinary E. coli between 2003 and 2008.


One hundred ninety-three single-patient isolates of Escherichia coli harboring extended-spectrum beta-lactamases (ESBL) were identified among 11 407 E. coli urine isolates recovered from single-patient outpatient urine cultures from 2003 to 2008. The percentage of ESBL-producing E. coli among community-onset E. coli urine isolates increased from 0.21% in… (More)
DOI: 10.1016/j.diagmicrobio.2009.12.011