VancomycinVancomycin ResistanceStaphylococcal InfectionsStaphylococcus aureusMicrobial Sensitivity TestsAnti-Bacterial AgentsMethicillin-Resistant Staphylococcus aureusMethicillin ResistanceBacteremiaDaptomycinBacterial ProteinsTeicoplaninDisease SusceptibilityEnterococcusGram-Positive Bacterial InfectionsOxazolidinonesAcetamidesDrug Resistance, MicrobialGenetic Predisposition to DiseaseGlycopeptidesEnterococcus faeciumEnterococcus faecalisDrug Resistance, BacterialGentamicinsEndocarditis, BacterialCarbon-Oxygen LigasesStaphylococcus epidermidisStaphylococcusAminoglycosidesGram-Positive BacteriaColony Count, MicrobialClostridium difficilePenicillin ResistanceGenotypeOxacillinEnterocolitis, PseudomembranousAnti-Infective AgentsPenicillinsMethicillinNafcillin