Figure 1From: Different serological cross-reactivity of Trypanosoma rangeli forms in Trypanosoma cruzi-infected patients seraThe use of trypomastigotes give better specificity than epimastigotes by IFA. Indirect immunofluorescence assay using Trypanosoma cruzi and Trypanosoma rangeli trypomastigote or epimastigote forms as antigens and serum (1:80) from a chronic chagasic patient with the cardiac form of the disease. Negative controls consist of epimastigotes and non-infected patient serum (1:40).Back to article page