Figure 2.

Trypomastigotes discriminate Trypanosoma cruzi from Trypanosoma rangeli over an increased titre range. Comparison of antibody titers obtained for chronic chagasic patients serum with cardiac or indeterminate forms tested against epimastigote or trypomastigote forms of T. cruzi Y (open bar) and CL (dotted bar) strains and T. rangeli Choachi (vertical lined bar) and SC-58 (horizontal lined bar) strains in indirect immunofluorescence assays. Experiments were performed in duplicates and vertical bars above data indicate mean standard error. Horizontal dotted lines indicate the 1:40 cut-off.