Penicillin ResistanceQuinolonesPenicillinsDrug Resistance, BacterialDNA GyrasePenicillin GMicrobial Sensitivity TestsAnti-Infective AgentsAnti-Bacterial AgentsDrug Resistance, MicrobialDNA Topoisomerase IVStreptococcus pneumoniae4-QuinolonesFluoroquinolonesCiprofloxacinPenicillin VNalidixic AcidPneumococcal InfectionsPenicillin-Binding ProteinsDrug Resistance, Multiple, BacterialMuramoylpentapeptide CarboxypeptidasePlasmidsDNA Topoisomerases, Type IIDrug ResistanceHexosyltransferasesNorfloxacinPeptidyl TransferasesBacterial Proteinsbeta-LactamasesNeisseria gonorrhoeaeDNA, BacterialEnterobacteriaceae InfectionsMutationOfloxacinDrug Resistance, MultiplePenicillin G ProcaineGenes, BacterialEnterobacteriaceaePenicillinaseEscherichia coliEnterobacter cloacaePenicillin AmidaseConjugation, GeneticMolecular Sequence DataSerotypingPolymerase Chain ReactionDrug Resistance, NeoplasmLactamsPenicillin G BenzathineStaphylococcus aureusSalmonella entericaTransformation, BacterialSequence Analysis, DNANaphthyridinesElectrophoresis, Gel, Pulsed-FieldErythromycinAminoacyltransferasesAza CompoundsLevofloxacinbeta-LactamsQuinolinesDisease ResistanceKlebsiella pneumoniaeSalmonella InfectionsTopoisomerase II InhibitorsMacrolidesVascular ResistanceAmpicillinStreptococcal InfectionsTetracyclineDrug Resistance, ViralBase SequenceIntegronsEscherichia coli InfectionsCitrobacter freundiiAmino Acid SequenceCefotaximeCarrier ProteinsDNA FingerprintingMolecular EpidemiologyR FactorsOxacillinStreptococcusNasopharynxSpainPneumococcal VaccinesStenotrophomonas maltophiliaStaphylococcusMoraxella (Branhamella) catarrhalisGene Transfer, HorizontalTransformation, GeneticBacteremiaKlebsiella InfectionsPneumonia, PneumococcalTetracycline ResistanceEscherichia coli ProteinsPseudomonas aeruginosaBacteriaBacterial Typing TechniquesGonorrhea