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. 2025 May 31;15(5):1998–2003. doi: 10.5455/OVJ.2025.v15.i5.14

Table 2. Antibiotic panel used for AST.

Antibiotic Concentration (µg) Interpretation Criteria (Zone Diameter in mm) (ICIS, 2021)
Amoxicillin 10 Sensitive ≥ 18, Intermediate 14-17, Resistant ≤ 13
Ciprofloxacin 5 Sensitive ≥ 21, Intermediate 16-20, Resistant ≤ 15
Tetracycline 30 Sensitive ≥ 19, Intermediate 15-18, Resistant ≤ 14
Gentamicin 10 Sensitive ≥ 15, Intermediate 13-14, Resistant ≤ 12
Trimethoprim-sulfamethoxazole 25 Sensitive ≥ 16, Intermediate 11-15, Resistant ≤ 10