Table 1.
Distribution of blaCTX-M genes identified in this study according to sources of isolation
| Source | No. of samples investigated | No. of isolates producing: |
Total no. (%) | ||
|---|---|---|---|---|---|
| CTX-M-14 | CTX-M-15 | CTX-M-32 | |||
| Feces | 379 | 16 | 7 | 6 | 29 (34.5) |
| Teat | 210 | 18 | 7 | 25 (29.7) | |
| Milk | 559 | 6 | 1 | 7 | 14 (16.7) |
| Floor | 43 | 3 | 2 | 5 (5.9) | |
| Fence | 44 | 2 | 2 | 4 (4.8) | |
| Ventilation fan | 42 | 1 | 1 | 2 (2.4) | |
| Feed | 30 | 1 | 1 (1.2) | ||
| Water | 30 | 1 | 1 (1.2) | ||
| Manure | 11 | 1 | 1 (1.2) | ||
| Farmers' hands | 43 | 1 | 1 (1.2) | ||
| Farmers' noses | 43 | ||||
| Milking cups | 102 | 1 | 1 (1.2) | ||
| Total | 1,536 | 49 | 9 | 26 | 84 (100) |