Penicillin ResistancePenicillinsCephalosporinsPenicillin GStreptococcus pneumoniaeAnti-Bacterial AgentsMicrobial Sensitivity TestsDrug Resistance, MicrobialDrug Resistance, BacterialPenicillin VPenicillin-Binding ProteinsPneumococcal InfectionsMuramoylpentapeptide CarboxypeptidasePeptidyl TransferasesHexosyltransferasesPenicillinaseDrug Resistancebeta-LactamasesNeisseria gonorrhoeaeDrug Resistance, MultipleDrug Resistance, Multiple, BacterialPenicillin G ProcainePenicillin AmidaseCefotaximeCephalosporin ResistanceLactamsbeta-LactamsDrug Resistance, NeoplasmBacterial ProteinsPenicillin G BenzathineAmpicillinSerotypingErythromycinAminoacyltransferasesCephaloridineDisease Resistancebeta-Lactam ResistanceMacrolidesBacteriaTransformation, BacterialVascular ResistanceCephalosporinaseTetracyclineDNA, BacterialCeftriaxoneStreptococcal InfectionsDrug Resistance, ViralCephalexinOxacillinR FactorsCefiximeMutationCarrier ProteinsMolecular Sequence DataCephalothinStreptococcusPlasmidsStaphylococcusEnterobacteriaceaeStaphylococcus aureusGenes, BacterialEscherichia coliNasopharynxPneumococcal VaccinesElectrophoresis, Gel, Pulsed-FieldMoraxella (Branhamella) catarrhalisTransformation, GeneticPneumonia, PneumococcalTetracycline ResistanceCeftazidimeCefmenoximeEnterobacterKlebsiella pneumoniaeCulture MediaRespiratory Tract InfectionsBacteremiaCommunity-Acquired InfectionsPolymerase Chain ReactionCarrier StateHaemophilus influenzaeCeftizoximeSpainGram-Negative BacteriaGonorrheaCefazolinAmpicillin ResistanceEnterobacteriaceae InfectionsCloxacillinDNA FingerprintingAmino Acid SequenceBase SequenceAztreonamCefotiamCefoxitinMolecular EpidemiologyCephradineKlebsiellaPlant DiseasesCarbapenemsNeisseria meningitidis