VancomycinCephalosporinsVancomycin ResistanceAnti-Bacterial AgentsMicrobial Sensitivity TestsCephalosporin ResistanceTeicoplaninbeta-LactamasesStaphylococcal InfectionsStaphylococcus aureusCefotaximeEnterococcusPenicillinsDrug Resistance, MicrobialCephaloridineCephalosporinaseCeftriaxoneCephalexinGram-Positive Bacterial Infectionsbeta-LactamsCefazolinDaptomycinCefiximeCephalothinMethicillin ResistanceOxazolidinonesMethicillin-Resistant Staphylococcus aureusAcetamidesPenicillin ResistanceCefmenoximeCeftazidimeBacteriaDrug Resistance, Bacterialbeta-Lactam ResistanceBacteremiaEnterobacteriaceaeAztreonamGram-Positive BacteriaCefotiamAminoglycosidesCeftizoximeGlycopeptidesEnterococcus faeciumCephradineEnterobacterGram-Negative BacteriaEnterococcus faecalisCefamandoleCross InfectionKlebsiella pneumoniaeGentamicinsEnterocolitis, PseudomembranousPenicillinaseClostridium difficileEndocarditis, BacterialAmpicillinStaphylococcusCefoxitinMethicillinBacterial InfectionsEnterobacteriaceae InfectionsCarbon-Oxygen LigasesBacterial ProteinsCloxacillinPenicillin GCephamycinsCarbapenemsStaphylococcus epidermidisLactamsCefuroximeImipenemKlebsiellaOxacillinCefaclorColony Count, MicrobialAnti-Infective AgentsCefoperazoneCefmetazoleEscherichia coliCefadroxilElectrophoresis, Gel, Pulsed-FieldKlebsiella InfectionsMoxalactamPenicillanic AcidPenicillin-Binding ProteinsGram-Negative Bacterial InfectionsDrug Resistance, Multiple, BacterialDrug Therapy, CombinationIsoelectric FocusingEnterobacter cloacaeStreptococcus pneumoniaeNafcillinCefotetanClostridium InfectionsDrug UtilizationDNA, BacterialStructure-Activity RelationshipCulture MediaCephaloglycinPeptidoglycan