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PCR detection of antibiotic resistance genes in DNA extracted from bacteria isolates at different water sources.
| Water source | No. of test isolates | ARGs | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| ermF | mexB | bla NDM-1 | sul1 | sul2 | tet(G) | tet(O) | tet(W) | Total | |||
| No. | % | ||||||||||
| Borehole | 6 | 0 | 0 | 5 | 6 | 0 | 0 | 1 | 1 | 13 | 7.47 |
| Dam | 29 | 0 | 2 | 16 | 28 | 2 | 2 | 1 | 2 | 53 | 30.46 |
| Hand-dug well | 13 | 0 | 0 | 9 | 13 | 0 | 1 | 1 | 1 | 25 | 14.37 |
| Streams | 36 | 0 | 7 | 31 | 33 | 5 | 3 | 2 | 2 | 83 | 47.70 |
| Total | 84 | 0 (0.0) | 9 (5.17) | 61 (35.06) | 80 (45.98) | 7 (4.02) | 6 (3.45) | 5 (2.87) | 6 (3.45) | 174 | 100 |
