FluoroquinolonesAnti-Bacterial AgentsAnti-Infective AgentsMicrobial Sensitivity TestsDrug Resistance, BacterialQuinolonesCiprofloxacinOfloxacinDNA GyraseAza CompoundsDrug DiscoveryLevofloxacinDrug Resistance, MicrobialAnimal DiseasesNorfloxacinDNA Topoisomerase IVBacteriaDental Pulp NecrosisEscherichia coliBacterial InfectionsNaphthyridinesDrug UtilizationPefloxacinKanamycinStaphylococcus aureusQuinolinesDrugs, InvestigationalTrimethoprimEnoxacinBacterial ProteinsMinocyclineAmpicillinPenicillins4-QuinolonesGram-Positive BacteriaAmidohydrolasesDrug DesignGram-Negative BacteriaDrug Resistance, Multiple, BacterialDNA Topoisomerases, Type IIFisheriesStreptococcus pneumoniaeMethenyltetrahydrofolate CyclohydrolaseMolecular StructureDrug Evaluation, PreclinicalDermatitis, PhototoxicCulture MediaTopoisomerase II InhibitorsNalidixic AcidAnimal FeedCrystallography, X-RayPseudomonas aeruginosaMolecular Sequence DataGram-Negative Bacterial InfectionsCephalosporinsMacrolidesbeta-LactamsNorwayModels, MolecularAminoglycosidesFleroxacinEnzyme InhibitorsMutationPneumococcal InfectionsMycoplasma hominisDNA, BacterialAntimicrobial Cationic PeptidesMycobacterium fortuitumColony Count, MicrobialClostridium difficileLactamsNitrofurantoinUrinary Tract InfectionsEscherichia coli InfectionsStructure-Activity RelationshipGram-Positive CocciTyphoid FeverEnterobacteriaceaeCommunity-Acquired InfectionsAntitubercular AgentsDrug Resistance, Multiplebeta-LactamasesDisk Diffusion Antimicrobial TestsKlebsiella pneumoniaeSilverCapreomycinAnti-Infective Agents, UrinaryGram-Positive Bacterial InfectionsCarbapenemsMicrobial ViabilityErythromycinTetracyclinesBacteria, AnaerobicMoraxella (Branhamella) catarrhalisPlant ExtractsSalmonella typhiMycobacterium tuberculosisCross InfectionEnterococcus faecalisBinding Sites