title: The minimal infectious inoculum of Spirochaeta pallida (Nichols strain) and a consideration of its rate of multiplication in vivo.
mesh_terms: D003141:Communicable Diseases; D013142:Spirochaeta; D013180:Sprains and Strains; D014210:Treponema pallidum / Q000208:ethnology*
keywords: SPIROCHAETA PALLIDA/culture