Penicillin ResistancePenicillinsCephalosporinsPenicillin GStreptococcus pneumoniaeAnti-Bacterial AgentsMicrobial Sensitivity TestsPenicillin VPneumococcal InfectionsPenicillin-Binding ProteinsDrug Resistance, MicrobialMuramoylpentapeptide CarboxypeptidaseDrug Resistance, BacterialPeptidyl TransferasesHexosyltransferasesPenicillinasebeta-LactamasesNeisseria gonorrhoeaePenicillin G ProcainePenicillin AmidaseCefotaximeLactamsCephalosporin Resistancebeta-LactamsPenicillin G BenzathineDrug Resistance, Multiple, BacterialDrug Resistance, MultipleSerotypingAmpicillinBacterial ProteinsAminoacyltransferasesCephaloridineDrug ResistanceErythromycinCephalosporinaseBacteriaTransformation, BacterialCeftriaxoneCephalexinStreptococcal InfectionsMacrolidesbeta-Lactam ResistanceCefiximeOxacillinCephalothinTetracyclineStreptococcusCarrier ProteinsDNA, BacterialNasopharynxPneumococcal VaccinesStaphylococcusEnterobacteriaceaeMoraxella (Branhamella) catarrhalisR FactorsStaphylococcus aureusElectrophoresis, Gel, Pulsed-FieldPlasmidsDrug Resistance, NeoplasmPneumonia, PneumococcalTransformation, GeneticMolecular Sequence DataCefmenoximeGenes, BacterialCeftazidimeEscherichia coliEnterobacterRespiratory Tract InfectionsCeftizoximeMutationCommunity-Acquired InfectionsBacteremiaCarrier StateCulture MediaKlebsiella pneumoniaeHaemophilus influenzaeSpainCefazolinGonorrheaCefotiamCloxacillinAztreonamDisease ResistanceCephradineGram-Negative BacteriaCefoxitinNeisseria meningitidisDNA FingerprintingEnterobacteriaceae InfectionsVascular ResistancePolymerase Chain ReactionMolecular EpidemiologyKlebsiellaCefamandoleCarbapenemsDrug Resistance, ViralCefuroximeBacterial InfectionsPenicillanic AcidCephamycins