| Antibiotics | Disc | Brand | ATCC 8739 | EC | PM | PA | SA | R | S |
| Mcg |
| Mm | mm | Mm | Mm | Mm | mm | Mm | |
| Gentamicin | 10 | G | - | 18.3 ± 2.5 | 18.3 ± 2.5 | 5.3 ± 5.0 | 6.0 ± 0.0 | <14 | ≥16 |
| 10 | S | 17 ± 2.4 | 20.3 ± 1.5 | 27.3 ± 4.7 | 7.7 ± 2.9 | 6.3 ± 0.6 | <14 | ≥16 | |
| Ceftriaxone | 30 | G | - | 8.3 ± 2.1 | 23.7 ± 4.6 | 19.7 ± 2.1 | - | <15 | ≥21 |
| 30 | S | 21 ± 4.8 | 10.3 ± 2.5 | 29.7 ± 0.6 | 16.7 ± 5.9 | - | <15 | ≥21 | |
| Chloramphenicol | 50 | G | - | 30.3 ± 2.3 | 20.0 ± 11.8 | 9.3 ± 1.5 | - | <19 | ≥23 |
| 50 | S | 35 ± 5.3 | 22.7 ± 2.1 | 34.3 ± 2.5 | 7.3 ± 2.5 | - | <19 | ≥23 | |
| Ampicillin | 10 | G | - | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 | 32.0 ± 2.7 | <11 | ≥17 |
| 10 | S | - | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 | 34.7 ± 0.6 | <11 | ≥17 | |
| Ciprofloxacin | 5 | G | - | 10.7 ± 2.1 | 8.0 ± 0.0 | 6.0 ± 0.0 | 9.0 ± 1.0 | <19 | ≥22 |
| 5 | S | - | 11.7 ± 2.1 | 7.0 ± 0.0 | 8.3 ± 0.6 | 10.0 ± 1.7 | <19 | ≥22 |