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. 2021 Apr 5;31(5):733–739. doi: 10.4014/jmb.2102.02027

Table 2.

Minimum inhibitory concentration (MIC) distribution of Acinetobacter spp. isolates.

Antimicrobial Test range Distribution of MICs (μg/mL)

≤0.12 ≤0.25 ≤0.5 ≤1 ≤2 4≤ 8≤ 16≤ 32≤ 64≤ 128≤ 256≤
Amoxicillin/clavulanic acid 2:1* 2–32 2 15 37 4
Cefepime 0.25–16 4 19 20 6 5 3 |1
Cefoxitin* 1–32 2 1 10 45
Trimethoprim/sulfamethoxazole 0.25–4 22 26 2 4 |4
Chloramphenicol* 2–64 1 2 1 5 16 30 3
Ampicillin* 2–64 1 10 25 12 7 3
Ciprofloxacin 0.12–16 43 12 2 |1
Streptomycin* 16–128 28 18 7 4 1
Gentamycin 1–64 49 1 5 2 | 1
Ceftazidime 1–16 5 7 31 13 2 |
Tetracycline 2–128 49 5 1 |1 1 1
Sulfisoxazole* 16–256 38 12 8
Nalidixic acid* 2–128 11 31 13 2 1
Ceftiofur* 0.5–8 28 30
Meropenem 0.25-4 41 15 1 1 |
Colistin 2–16 56 |1 1

Vertical lines in each row indicate the breakpoint of each antimicrobial.

*Indicates no breakpoint in the CLSI guidelines.