Evaluation of commercial vancomycin agar screen plates for detection of vancomycin-resistant enterococci.
Brain heart infusion-6-micrograms/ml vancomycin agar plates obtained from five commercial sources (B-D Microbiology Systems, Carr-Scarborough Microbiologicals, MicroBio Products, PML Microbiologicals, and REMEL) were evaluated with 714 enterococci for detection of vancomycin resistance. All 465 (100%) vancomycin-resistant enterococci (MIC > or = 32 micrograms/ml) were detected by each manufacturer's agar screen plate, and each manufacturer's agar screen plate detected at least 99% of the 177 vancomycin-susceptible enterococci (MIC < or = 4 micrograms/ml). Detection of the 72 vancomycin-intermediate enterococci (MIC = 6 to 16 micrograms/ml) ranged from 94% for B-D Microbiology Systems to 99% for PML Microbiologicals.
Van Horn
K G
KG
Department of Clinical Pathology, Westchester County Medical Center, Valhalla, New York 10595, USA. 07931@pop.net
Gedris
C A
CA
Rodney
K M
KM
Mitchell
J B
JB
D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D003470:Culture Media; D004352:Drug Resistance, Microbial; D016983:Enterococcus / Q000187:drug effects*; D005069:Evaluation Studies as Topic; D016908:Gram-Positive Bacterial Infections / Q000382:microbiology; D006801:Humans; D008826:Microbial Sensitivity Tests / Q000379:methods*; D014640:Vancomycin / Q000494:pharmacology*
D000900:Anti-Bacterial Agents; D003470:Culture Media; D014640:Vancomycin