The emergence of Staphylococcus epidermidis simultaneously nonsusceptible to linezolid and teicoplanin in China.

Two linezolid-resistant and teicoplanin-intermediate Staphylococcus epidermidis strains were isolated from blood cultures in China. The 2 S. epidermidis strains were methicillin-resistant and showed multidrug-resistance patterns; in addition, population analysis profiling/area under the curve (PAP/AUC) result showed heterogeneous resistant to vancomycin. Comparing to teicoplanin susceptible strains, the 2 isolates showed reduced autolytic activity. Pulsed field gel electrophoresis (PFGE) and multilocus sequence typing (MLST) indicated that the 2 S. epidermidis isolates belonged to the same clone. Furthermore, the cfr gene, a G2576T mutation, and a novel C2146T mutation were detected in the 2 isolates. This was the first report of S. epidermidis simultaneously nonsusceptible to linezolid and teicoplanin in China.