Penicillin ResistancePenicillinsPenicillin GNeisseria gonorrhoeaeNeisseriaPenicillin VNeisseria meningitidisAnti-Bacterial AgentsStreptococcus pneumoniaeMicrobial Sensitivity TestsDrug Resistance, MicrobialDrug Resistance, BacterialPenicillin G ProcainePenicillin-Binding ProteinsPneumococcal InfectionsPenicillin AmidaseMuramoylpentapeptide CarboxypeptidasePenicillin G BenzathineHexosyltransferasesPeptidyl TransferasesPenicillinaseDrug ResistanceGonorrheaDrug Resistance, Multiple, BacterialDrug Resistance, MultipleBacterial ProteinsAntimicrobial Cationic PeptidesSerotypingLactamsAnti-Infective AgentsErythromycinAmpicillinbeta-LactamasesDrug Resistance, NeoplasmStreptococcal InfectionsTetracyclineAminoacyltransferasesDNA, BacterialMacrolidesNeisseria lactamicaMolecular Sequence DataTransformation, BacterialCefotaximeStreptococcusbeta-LactamsBacteriaStaphylococcus aureusDisease ResistanceOxacillinStaphylococcusMutationNasopharynxGenes, BacterialCarrier ProteinsCephalosporinsVascular ResistanceR FactorsDrug Resistance, ViralEscherichia coliCulture MediaSpectinomycinMeningococcal InfectionsPneumococcal VaccinesMoraxella (Branhamella) catarrhalisTransformation, GeneticPlasmidsPneumonia, PneumococcalCarrier StateElectrophoresis, Gel, Pulsed-FieldCeftriaxoneAmino Acid SequenceTetracycline ResistanceHaemophilus influenzaeBacteremiaMeningitis, MeningococcalRespiratory Tract InfectionsPolymerase Chain ReactionBase SequenceNeisseria meningitidis, Serogroup BCommunity-Acquired InfectionsStreptomycinbeta-Lactam ResistanceGram-Negative BacteriaGentamicinsAmpicillin ResistanceGram-Positive BacteriaSpainBacterial Typing TechniquesFluoroquinolonesBacterial InfectionsDNA FingerprintingMolecular EpidemiologyCloxacillinCiprofloxacinCefiximeClindamycinChloramphenicolSequence Analysis, DNAEnterobacteriaceaePlant Diseases