TABLE 3 .
β-Lactamase gene types identified among ampicillin-resistant E. coli isolates of the 12 shared genotypes
| Sequence type | β-Lactamase gene type (no. of isolates)a |
|
|---|---|---|
| Human urine samples | Retail meat products | |
| ST117 | NA | blaTEM type (1) |
| ST10 | blaTEM type (2) | blaTEM type (1) |
| ST69 | blaTEM type (14) | blaTEM type (6) |
| blaTEM type + blaCTX-M group 1 (1) | ||
| Other (2) | ||
| ST101 | blaTEM type + blaCTX-M group 1 (1) | NA |
| ST38 | Other (1) | Other (1) |
| ST131 | blaCTX-M group 1 + blaOXA type (4) | NA |
| blaTEM type + blaCTX-M group 9 (1) | ||
| blaOXA type (1) | ||
| blaTEM type (3) | ||
| ST88 | blaTEM type (1) | Other (1) |
| Other (1) | ||
| ST569 | blaTEM type (1) | NA |
a
NA, not applicable. Other denotes ampicillin-resistant isolates that did not have any blaTEM-type, blaCTX-M-type, blaOXA-type, blaSHV-type, or blaAmpC-type genes. The bla types and genes included in the bla types follow: blaTEM type, blaTEM-1 and blaTEM-2; blaSHV type, blaSHV-1; blaCTX-M group 1, blaCTX-M-1, blaCTX-M-3, and blaCTX-M-15; blaCTX-M group 2, blaCTX-M-2; blaCTX-M group 9, blaCTX-M-9 and blaCTX-M-14; blaCTX-M group 8/25, blaCTX-M-8, blaCTX-M-25, blaCTX-M-26, and blaCTX-M-39 to blaCTX-M-41; blaOXA type, blaOXA-1, blaOXA-4, and blaOXA-30.