Identification of Coagulase-Negative Staphylococci by Using the BD Phoenix System in the Low-Inoculum Mode

Author:

Brigante Gioconda1,Menozzi Maria Grazia2,Pini Beatrice1,Porta Rosaria3,Somenzi Pietro2,Sciacca Agata4,Spanu Teresa3,Stefani Stefania5

Affiliation:

1. Laboratory of Medical Microbiology, University of Insubria and Ospedale di Circolo, Varese

2. Department of Pathology and Laboratory Medicine, Section of Microbiology, University of Parma, Parma

3. Institute of Microbiology, Università Cattolica del Sacro Cuore, Rome

4. Laboratory of Microbiology, Azienda Policlinico, University of Catania, Catania

5. Department of Microbiological and Gynecological Sciences, Section of Microbiology, University of Catania, Catania, Italy

Abstract

ABSTRACT The new “low-inoculum” mode of the Phoenix system was evaluated to identify clinical coagulase-negative staphylococci. API ID32 Staph panels were used as comparators, and discrepancies were resolved by 16S rRNA and tuf gene analysis. The system correctly identified 90.5% of isolates, with a mean time of 10.2 h. Accuracy was satisfactory for Staphylococcus epidermidis, S. saprophyticus , and S. haemolyticus .

Publisher

American Society for Microbiology

Subject

Microbiology (medical)

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