title: When is syphilis not syphilis? Or is it?
authors.affiliation: From the *Departments of Medicine and †Global Health, University of Washington, Seattle WA.
authors.forename: Sheila A
authors.initials: SA
authors.lastname: Lukehart
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Giacani
mesh_terms: D018451:Homosexuality, Male; D006801:Humans; D008297:Male; D058889:Molecular Typing; D013587:Syphilis / Q000382:microbiology*; D014210:Treponema pallidum / Q000235:genetics*