The new oxazolidinone antimicrobial, linezolid, has been approved for the t
reatment of infections caused by various gram-positive bacteria, including
meticillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant
enterococci (VRE). Although instances of linezolid resistance in VRE have b
een reported, resistance has not been encountered among clinical isolates o
f S aureus. We have characterised an MRSA isolate resistant to linezolid th
at was recovered from a patient treated with this agent for dialysis-associ
ated peritonitis.