A direct agglutination test discriminative toward Chagas' disease for the diagnosis of visceral leishmaniasis in Brazil: preliminary results

Summary Two-hundred and sixty-five human sera from Brazil were tested in a direct agglutination assay using trypsinated Leishmania donovani donovani antigen. The assay proved to be of value for the diagnosis of American visceral leishmaniasis in that it was discriminative toward Chagas' disease.