Penicillin ResistanceNeisseria gonorrhoeaePenicillinsNeisseriaPenicillin GNeisseria meningitidisStreptococcus pneumoniaeGonorrheaPenicillin VPneumococcal InfectionsAnti-Bacterial AgentsMicrobial Sensitivity TestsPenicillin-Binding ProteinsPenicillinaseDrug Resistance, MicrobialMuramoylpentapeptide CarboxypeptidaseHexosyltransferasesPeptidyl TransferasesDrug Resistance, BacterialPenicillin G ProcainePenicillin AmidaseSerotypingBacterial ProteinsPenicillin G BenzathineTransformation, BacterialLactamsNeisseria lactamicaAminoacyltransferasesDrug Resistance, MultipleDrug Resistancebeta-LactamasesErythromycinSpectinomycinDrug Resistance, Multiple, BacterialDNA, BacterialTetracyclineAmpicillinBlood Bactericidal ActivityNasopharynxMacrolidesStreptococcal InfectionsGenes, BacterialCefotaximeMolecular Sequence DataTransformation, GeneticCulture MediaBacterial Outer Membrane ProteinsMeningococcal InfectionsCarrier ProteinsStreptococcusPneumococcal VaccinesOxacillinbeta-LactamsMoraxella (Branhamella) catarrhalisCytidine Monophosphate N-Acetylneuraminic AcidMutationNeisseria meningitidis, Serogroup BDrug Resistance, NeoplasmR FactorsCarrier StatePlasmidsPneumonia, PneumococcalMeningitis, MeningococcalStaphylococcusUrethraCefiximeBacteriological TechniquesUrethritisAntigens, BacterialCephalosporinsElectrophoresis, Gel, Pulsed-FieldFimbriae, BacterialHaemophilus influenzaeStaphylococcus aureusRespiratory Tract InfectionsAmino Acid SequenceDisease ResistanceNeisseria meningitidis, Serogroup W-135Base SequencePolymerase Chain ReactionBacteriaVascular ResistanceSpainNeisseria meningitidis, Serogroup CCommunity-Acquired InfectionsBacteremiaNeisseriaceaePorinsTetracycline ResistanceNeisseria meningitidis, Serogroup AMolecular EpidemiologyDrug Resistance, ViralDNA FingerprintingBacterial AdhesionBacterial Typing TechniquesEscherichia coliCeftriaxoneNeisseria meningitidis, Serogroup YPhagocytosisPeptidoglycan