Table 5 Antibiotic susceptibility of 174 B. cereus strains isolated from foodstuffs in Tunisia
Antibiotics | Conc. (μg/disc) | No. of strains (%) | ||
|---|---|---|---|---|
Resistant | Intermediate | Susceptible | ||
Rifampicin | 5 | 0 | 0 | 174 (100) |
Erythromycin | 15 | 2 (1.2) | 6 (3.4) | 166 (95.4) |
Chloramphenicol | 30 | 0 | 0 | 174 (100) |
Novobiocin | 30 | 153 (88) | 13 (7.5) | 8 (4.5) |
Ampicillin | 10 | 158 (90.8) | 11 (6.3) | 5 (2.9) |
Ciprofloxacin | 5 | 0 | 0 | 174 (100) |
Streptomycin | 10 | 2 (1.1) | 0 | 172 (98.9) |
Gentamycin | 10 | 0 | 0 | 174 (100) |
Vancomycin | 30 | 7 (4) | 7 (4) | 160 (92) |
Kanamycin | 30 | 0 | 6 (3.4) | 168 (96.6) |
Tetracycline | 30 | 10 (5.7) | 16 (9.2) | 148 (85.1) |