CyclacillinPenicillin ResistancePenicillinsPenicillin GStreptococcus pneumoniaeAnti-Bacterial AgentsMicrobial Sensitivity TestsPenicillin VPneumococcal InfectionsPenicillin-Binding ProteinsDrug Resistance, BacterialDrug Resistance, MicrobialMuramoylpentapeptide CarboxypeptidaseHexosyltransferasesPeptidyl TransferasesPenicillin G ProcainePenicillinaseNeisseria gonorrhoeaePenicillin AmidaseDrug Resistance, Multiple, BacterialLactamsPenicillin G BenzathineSerotypingBacterial ProteinsDrug Resistance, MultipleDrug ResistanceAminoacyltransferasesErythromycinbeta-LactamasesMacrolidesAnti-Infective AgentsAmpicillinTetracyclineStreptococcal InfectionsTransformation, BacterialCefotaximeOxacillinbeta-LactamsNasopharynxCarrier ProteinsStreptococcusDNA, BacterialStaphylococcus aureusPneumococcal VaccinesAmino AcidsMoraxella (Branhamella) catarrhalisStaphylococcusMutationGenes, BacterialMolecular Sequence DataDrug Resistance, NeoplasmTransformation, GeneticElectrophoresis, Gel, Pulsed-FieldPneumonia, PneumococcalRespiratory Tract InfectionsPlasmidsBacteriaCommunity-Acquired InfectionsR FactorsCarrier StateEscherichia coliBacteremiaSequence Homology, Amino AcidCulture MediaCephalosporinsDisease ResistanceSpainPolymerase Chain ReactionHaemophilus influenzae