Syphilis, CongenitalSyphilisSyphilis SerodiagnosisTreponema pallidumSyphilis, LatentPregnancy Complications, InfectiousSerologic TestsSyphilis, CutaneousPenicillin G BenzathinePeriostitisInfant, NewbornPrenatal CarePregnancyReaginsFetal DeathNeurosyphilisMummiesAntibodies, BacterialImmunoglobulin MSyphilis, CardiovascularInfectious Disease Transmission, VerticalEnzyme-Linked Immunosorbent AssaySensitivity and SpecificityYawsMass ScreeningStillbirth