TABLE 1.
Occurrence of TMP-SMZ resistance and Escherichia coli CGA among 1,484 E. coli sewage isolates from seven regions
| Region | Total no. of E. coli isolates | No. (%) of TMP-SMZ-resistant isolates | No. of CGA E. coli isolates (% of TMP-SMZ-resistant isolates)a |
|---|---|---|---|
| San Jose, CA | 226 | 30 (13) | 12 (40) |
| Tallahassee, FL | 210 | 5 (2) | 0 (<1) |
| Lewiston, ME | 204 | 1 (<1) | 0 (<1) |
| Cincinnati, OH | 219 | 10 (5) | 0 (<1) |
| Seattle, WA | 170 | 9 (5) | 1 (11) |
| Milwaukee, WI | 240 | 17 (7) | 1 (6) |
| Virginia Beach, VA | 215 | 5 (2) | 1 (20) |
| Total | 1,484 | 77 (5) | 15 (19.5) |
a
All TMP-SMZ-resistant isolates were screened for CGA status.