In vitro activities of ceftobiprole, dalbavancin, daptomycin, linezolid, and tigecycline against methicillin-resistant Staphylococcus aureus blood isolates: stratified analysis by vancomycin MIC.

The in vitro activities of newer agents against 569 methicillin-resistant Staphylococcus aureus (MRSA) blood isolates stratified by vancomycin MIC values (≤1 versus >1 μg/mL) were evaluated using broth microdilution methods. All agents had good in vitro activities against MRSA regardless of vancomycin MIC values. Some significant correlations between vancomycin and newer agents' MIC values were observed.