Treponema pallidumTreponemaSyphilisTreponemal InfectionsTreponema Immobilization TestSyphilis SerodiagnosisYawsTreponema denticolaRabbitsSyphilis, CongenitalChancreAntibodies, BacterialNeurosyphilisSyphilis, CutaneousMicroscopy, ElectronAntigens, BacterialHemagglutination TestsFluorescent Treponemal Antibody-Absorption TestSpirochaetaceaePenicillin G BenzathineSpirochaetaSpirochaetalesBacterial ProteinsSyphilis, LatentGenitaliaUlcerDysenteryGingivitis, Necrotizing UlcerativeReaginsDNA, BacterialBacterial Outer Membrane ProteinsMolecular Sequence DataMicroscopy, Electron, ScanningTestisBacteriological TechniquesFreeze FracturingLipoproteinsFlagellaFluorescent Antibody TechniqueOrchitisGenes, BacterialChancroidCardiolipinsImmune SeraImmunoglobulin MBorrelia burgdorferi GroupAntigens, SurfacePenicillin GMolecular WeightGenital Diseases, MalePorins