title: Letter: Nonspecific humoral response associated with secondary syphilis.
mesh_terms: D000917:Antibody Formation; D002006:Brucellosis / Q000150:complications / Q000276:immunology; D003937:Diagnosis, Differential; D006801:Humans; D007156:Immunologic Memory; D007158:Immunologic Techniques; D013587:Syphilis / Q000276:immunology*; D013588:Syphilis Serodiagnosis