Abstract
Clinical isolates of Escherichia coli collected from 1991 through 2005 at a tertiary-care center were studied for qnr and aac (6')-Ib-cr genes. Isolates bearing aac(6′)-Ib-cr emerged in 1998, coinciding with an increase in ciprofloxacin resistance. The presence of aac (6')-Ib-cr was multiclonal and was associated with the presence of extended-spectrum β-lactamases.
| Original language | English |
|---|---|
| Pages (from-to) | 1268-1270 |
| Number of pages | 3 |
| Journal | Antimicrobial Agents and Chemotherapy |
| Volume | 53 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 2009 |
| Externally published | Yes |