Table 2.

Microbial Susceptibility Patterns of Propionibacterium acnes Isolates

Antimicrobial Agent	No. (%)a
Penicillin	19 (100)
Piperacillin/tazobactam	7 (100)
Ertapenem	7 (100)
Moxifloxacin	10 (100)
Rifampin	6 (100)
Vancomycin	14 (100)
Clindamycin	17 (94)
Metronidazole	0 (0)
Minocycline MIC 0.03–0.25 µg/mLb

Abbreviations: CLSI, Clinical and Laboratory Standards Institute; EUCAST, European Committee on Antimicrobial Susceptibility Testing; MIC, minimum inhibitory concentration.

^a Data are number (%) of cases, unless otherwise indicated; susceptibilities determined as per CLSI/EUCAST breakpoints.

^b Range of MIC values for 11 tested isolates; no CLSI interpretive breakpoints are available for minocycline; tetracycline susceptible MIC breakpoint is ≤4 µg/mL.