The demonstration of the immobilizing antibody for Treponema pallidum (TPI test).
D000818:Animals; D000907:Antibodies, Bacterial / Q000276:immunology; D049673:History, 20th Century; D006801:Humans; D011817:Rabbits; D014209:Treponema Immobilization Test / Q000266:history*; D014210:Treponema pallidum / Q000276:immunology
D000907:Antibodies, Bacterial