IntroductionStrains of the syphilis spirochete. Treponema pallidum ssp. pallidum. group into one of two deep-branching clades: the Nichols clade or the globally dominant Street Strain 14 (SS14) clade. https://www.bekindtopets.com/hot-find-Well-Rite-WR-60-Well-Pressure-Tank-20-gallon-Steel-great-pick/