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Table 3 MIC50 and MIC90 values of penicillin, streptomycin, vancomycin, amikacin, gentamicin, and tetracycline for Gram-positive bacilli and cocci

From: Bacterial contamination of human skin allografts and antimicrobial resistance: a skin bank problem

Isolates μg/mL PEN EST VAN AMI GEN TET
Gram-positive bacilli (n = 118) MIC50 1 2 2 0.5 0.5 0.5
MIC90 > 32 32 8 1 2 8
Gram-positive cocci (n = 103) MIC50 8 4 2 2 0.5 1
MIC90 > 32 8 4 4 2 2
Gram-positive bacilli and cocci (n = 221) MIC50 8 4 2 0.5 0.5 1
MIC90 > 32 16 8 2 2 4
  1. AMI, amikacin; EST, streptomycin; GEN, gentamicin; MIC50, MIC value at which ≥50% of the isolates were inhibited; MIC90, MIC value at which ≥90% of the isolates were inhibited PEN, penicillin; TET, tetracycline; VAN, vancomycin