Table 1

Antimicrobial susceptibility of planktonic and biofilm P. acnes

ParameterValue (μg/ml)a
RifampinDaptomycinLevofloxacinVancomycinClindamycinPenicillin GCeftriaxone
MIC0.0071110.1250.030.25
MBC44285121632
MBC/MIC ratio5714284,0965,333128
MBEC16645125121283264
  • a The values are medians of triplicates. The MBC was determined by broth macrodilution at 48 h. The MBEC was determined by microcalorimetry.