Table 1.
Antibiotic susceptibility of 31 Neisseria gonorrhoeae isolates from Bissau, Guinea-Bissau
| Antibiotic (breakpoints) | Susceptible (%) | Intermediate (%) | Resistant (%) |
| Penicillin G (S≤0.064/R>1.0)* | 5 (16) | 5 (16) | 21 (68)† |
| Ampicillin (S≤0.125/R>3.0) | 10 (32) | 0 | 21 (68)† |
| Cefixime (S≤0.125/R>0.125)* | 31 (100) | 0 | 0 |
| Ceftriaxone (S≤0.125/R>0.125)* | 31 (100) | 0 | 0 |
| Cefuroxime (S≤0.064/R>1.0) | 5 (16) | 26 (84) | 0 |
| Azithromycin (S≤0.25/R>0.5)* | 31 (100) | 0 | 0 |
| Erythromycin (S≤0.25/R>0.5) | 26 (84) | 3 (10) | 2 (6) |
| Ciprofloxacin (S≤0.032/R>0.064)* | 28 (90) | 0 | 3 (10) |
| Spectinomycin (S≤64/R>64)* | 31 (100) | 0 | 0 |
| Tetracycline (S≤0.5/R>1.0)* | 8 (26) | 0 | 23 (74) |
| Rifampicin (S≤0.125/R>32) | 24 (77) | 3 (10) | 4 (13) |
| Gentamicin | MIC range: 0.75–6 mg/l | ||
| Kanamycin | MIC range: 8–32 mg/l | ||
*
Breakpoints (for susceptible (S≤x mg/l) and resistant (R>y mg/l)) according to the European Committee on Antimicrobial Susceptibility Testing (EUCAST; http://www.eucast.org) were used, when available.
†
All were β-lactamase producing.
MIC, minimum inhibitory concentration.