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/quick-offer-Probios-Intelliflora-1-06-oz-special-buy/