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Table 2 Results of antimicrobial susceptibility testing for clinical isolate E. miricola

From: Elizabethkingia miricola as an opportunistic oral pathogen associated with superinfectious complications in humoral immunodeficiency: a case report

Antimicrobiala MIC (mg/L) MIC breakpoint (mg/L) Interpretation
Susceptible ≤ Resistant >
Cefepime ≥32 4 8 Resistant
Piperacillin ≥128 4 16 Resistant
Piperacillin/Tazobactam ≥128 4 16 Resistant
Ticarcillin/Clavulanic acid ≥128 8 16 Resistant
Ciprofloxacin ≤0.25 0.5 1 Susceptible
Levofloxacin 0.25 1 2 Susceptible
Meropenem ≥16 2 8 Resistant
Gentamicin 8 4 4 Resistant
Amikacin ≥64 8 16 Resistant
Tobramycin ≥16 4 4 Resistant
Colistin ≥16 4 4 Resistant
Antimicrobialb Inhibition diameter (mm) Zone diameter breakpoint (mm) Interpretation
Susceptible ≥ Resistant <
Ceftazidime 6 17 17 Resistant
Cefepime 12 19 19 Resistant
Trimethoprim/Sulfamethoxazole 24 16 16 Susceptible
Amikacin 13 18 15 Resistant
Gentamicin 14 15 15 Resistant
Imipenem 6 20 17 Resistant
Meropenem 6 24 18 Resistant
Levofloxacin 27 20 17 Susceptible
Ciprofloxacin 28 25 22 Susceptible
  1. aAntimicrobial susceptibility testing using Vitek 2 (bioMérieux, Marcy l’Etoile, France), according to the European Committee on Antimicrobial Susceptibility Testing (EUCAST) guidelines 2016 (http://www.eucast.org). For interpretation, non–species-related (pharmacokinetics/ pharmacodynamics) breakpoints were used except for gentamicin, amikacin, tobramycin and colistin, in which Pseudomonas sp. breakpoints were used
  2. bAntimicrobial susceptibility testing by the disc diffusion method according to 2016 EUCAST guidelines (http://www.eucast.org). For interpretation, non–species-related (pharmacokinetics/ pharmacodynamics) breakpoints were used except for trimethoprim/ sulfamethoxazole, in which Stenotrophomonas maltophilia breakpoints were used, and for gentamicin, amikacin, tobramycin, ciprofloxacin and levofloxacin, in which Pseudomonas sp. breakpoints were used