Chlamydia InfectionsSyphilisChlamydia trachomatisChlamydiaSyphilis, CongenitalChlamydia muridarumSyphilis SerodiagnosisSexually Transmitted Diseases, BacterialGenital Diseases, FemaleChlamydophila psittaciMale Urogenital DiseasesUterine CervicitisFemale Urogenital DiseasesSyphilis, CutaneousGonorrheaTreponema pallidumGenital Diseases, MaleSyphilis, LatentTrachomaFallopian TubesFallopian Tube DiseasesMass ScreeningPregnancy Complications, InfectiousPrevalenceAntibodies, BacterialChlamydophila pneumoniaeCervix UteriNeurosyphilisSexual BehaviorReaginsSyphilis, CardiovascularPolymerase Chain ReactionLymphogranuloma VenereumChlamydophila InfectionsSensitivity and SpecificityPregnancyHeLa CellsRisk FactorsSexually Transmitted DiseasesPsittacosisYawsAntitreponemal AgentsUrethritisChancreHomosexuality, MalePelvic Inflammatory DiseaseAzithromycinPenicillin G ProcaineProstitutionHIV InfectionsContact TracingTreponema Immobilization TestUrethraFluorescent Treponemal Antibody-Absorption TestAntigens, BacterialNeisseria gonorrhoeaeBacterial Outer Membrane ProteinsSerologic TestsHemagglutination Tests