Table 3.
MIC50s and MIC90s
Antimicrobial | MIC (μg/ml) for: |
|||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
All strains (392) |
U.S. strains (214) |
Madagascar strains (53) |
Uganda strains (63) |
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Range | MIC50 | MIC90 | Range | MIC50 | MIC90 | Range | MIC50 | MIC90 | Range | MIC50 | MIC90 | |
Aminoglycosides | ||||||||||||
Gentamicin | 0.12–2 | 0.25 | 0.5 | 0.12–1 | 0.25 | 0.5 | 0.25–0.5 | 0.25 | 0.5 | 0.25–2 | 0.5 | 1 |
Streptomycin | 0.5–8 | 4 | 4 | 0.5–4 | 4 | 4 | 2–4 | 4 | 4 | 1–4 | 4 | 4 |
Tetracyclines | ||||||||||||
Tetracycline | 0.25–2 | 1 | 1 | 0.25–2 | 1 | 1 | 0.5–1 | 1 | 1 | 0.25–0.5 | 0.5 | 0.5 |
Doxycycline | 0.12–1 | 0.5 | 1 | 0.12–1 | 0.5 | 1 | 0.5–1 | 0.5 | 1 | 0.12–0.25 | 0.25 | 0.25 |
Fluoroquinolones | ||||||||||||
Ciprofloxacin | 0.03–0.12 | 0.03 | 0.03 | 0.03–0.12 | 0.03 | 0.03 | 0.03–0.06 | 0.03 | 0.06 | 0.03 | 0.03 | 0.03 |
Levofloxacin | 0.03–0.06 | 0.03 | 0.03 | 0.03–0.06 | 0.03 | 0.03 | 0.03–0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 |
Phenicol | ||||||||||||
Chloramphenicol | 0.5–4 | 2 | 4 | 0.5–4 | 2 | 4 | 1–4 | 2 | 4 | 0.5–2 | 1 | 1 |
Other | ||||||||||||
Trimethoprim–sulfamethoxazole | 0.03/0.6–0.25/4.75 | 0.06/1.19 | 0.12/2.38 | 0.03/0.6–0.12/2.38 | 0.06/1.19 | 0.12/2.38 | 0.06/1.19–0.12/2.38 | 0.06/1.19 | 0.06/1.19 | 0.06/1.19–0.12/2.38 | 0.06/1.19 | 0.12/2.38 |