title: Recovery of spirochagetes in the monkey by passive transfer from human late sero-negative syphilis.
mesh_terms: D000368:Aged; D000818:Animals; D000882:Haplorhini; D006801:Humans; D007116:Immunization, Passive; D008297:Male; D013142:Spirochaeta / Q000302:isolation & purification; D013587:Syphilis / Q000175:diagnosis* / Q000276:immunology / Q000382:microbiology; D013588:Syphilis Serodiagnosis; D014210:Treponema pallidum / Q000276:immunology