title: Immunological aspects in recent syphilis.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003165:Complement System Proteins / Q000032:analysis*; D005260:Female; D006801:Humans; D007136:Immunoglobulins / Q000032:analysis*; D008297:Male; D008875:Middle Aged; D013587:Syphilis / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D007136:Immunoglobulins; D003165:Complement System Proteins