TABLE 2.

Antibiotic sensitivity profiles of clinical MRSA isolate CM05 and S. aureus laboratory strain RN4220 transformed with mlr operon-expressing plasmid pMS2 or empty vector pLI50

AntibioticMIC (μg/ml)
RN4220(pLI50)RN4220(pMS2)CM05
ChloramphenicolNDaND64
Clindamycin<1.0>1,024>1,024
Erythromycin0.5>1,024>1,024
Florfenicol4128ND
Linezolid248
Quinupristin-dalfopristin<0.050.52
Tiamulin1128512
Tylosin2>1,024ND
  • a ND, not determined.