Abstract
Six isolates of
Propionibacterium acnes recovered from cases of chronic infectious endophthalmitis following extracapsular cataract extraction were tested for antibiotic susceptibility. All isolates were susceptible to penicillin, cefazolin, and vancomycin with a macrobroth dilution method, Minimum bactericidal concentrations testing at 72 h revealed that six of six isolates were killed by ⩽1.0 μg of vancomycin/ml, one of six isolates by ⩽1.0 μg of penicillin/ml, and zero of six isolates by ⩽1.0 μg cefazolin/ml.
