Cephalosporin ResistanceCephalosporinsbeta-LactamasesMicrobial Sensitivity TestsCefotaximeEnterobacteriaceae InfectionsAnti-Bacterial Agentsbeta-Lactam ResistanceCefuroximeAcremoniumDrug Resistance, BacterialEnterobacteriaceaeKlebsiella pneumoniaePenicillin-Binding ProteinsEscherichia coliKlebsiella InfectionsCeftazidimeDrug Resistance, Multiple, BacterialGram-Negative Bacteriabeta-LactamsCephalexinCephalosporinaseGram-Positive Bacterial InfectionsBacterial ProteinsDrug Resistance, MicrobialCeftriaxoneDNA, BacterialCephalothinEnterococcus faecalisCefmenoximeCephaloridineCeftizoximeMacauPenicillin AmidaseEscherichia coli InfectionsBacteriaGram-Negative Bacterial InfectionsSerratia InfectionsCross InfectionPlasmidsCefazolinEnterobacter cloacaeCefiximeCefaclorDrug ResistanceCefamandolePenicillinsBacterial InfectionsEnterobacterPenicillin ResistanceBacteremiaCefonicidGram-Positive BacteriaIndiaCephradinePenicillinaseHospitalsCefotiamDrug StabilityMuramoylpentapeptide CarboxypeptidaseDrug Resistance, NeoplasmAcetylesteraseElectrophoresis, Gel, Pulsed-FieldDrug Resistance, MultiplePeptidyl TransferasesHexosyltransferasesPenicillin GAmpicillinStaphylococcus aureusDisease ResistanceCefoxitinCefoperazoneCefsulodinCephapirinPolymerase Chain ReactionPseudomonas aeruginosaMutationVascular ResistanceCephamycinsDrug Resistance, ViralCefotetanPseudomonasKlebsiellaMolecular Sequence DataMethicillin ResistancePenicillanic AcidChemistryAztreonamChemical PhenomenaFleroxacinStreptococcus pneumoniaeInfant, NewbornStaphylococcus