title: Plasmodium brasilianum antigen for use in the indirect hemagglutination test.
abstract: Antigen was prepared from Plasmodium brasilianum harvested from an infected spider monkey. This antigen was attached to aldehyde-fixed, human type O cells, and was tested against sera from human cases of P. malaria, P. vivax, P. falciparum, and P. ovale infection, and sera from noninfected persons. At dilutions of 1:16 or greater the antigen failed to react in sera from noninfected persons. It reacted at titers of 16 or above with sera from 85% of the persons with P. malariae infection, 83% with P. vivax infection, 70% with P. falciparum infection, and 70% with P. ovale infection.
mesh_terms: D000941:Antigens / Q000032:analysis*; D006386:Hemagglutination Tests; D008288:Malaria / Q000276:immunology
chemical_list: D000941:Antigens