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. 2018 Jul 30;9:1608. doi: 10.3389/fmicb.2018.01608

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Copyright © 2018 Gomes, de Araújo, Vitelli-Avelar, Sathler-Avelar, Lage, Wendling, do Vale, Dias, Elói-Santos, Teixeira-Carvalho and Martins-Filho.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Anti-live T. cruzi trypomastigote IgG reactivity. The levels of anti-live trypomastigote antibodies were measured in serum samples collected from indeterminate (IND, = 5) and cardiac (CARD, = 10) Chagas disease patients. (A) Data are presented as mean ± standard error value of Percentage of Positive Fluorescent Parasite (PPFP), along the titration curve (1:128 to 1:16,384). (B) The differential reactivity pattern observed at 1:16,384 serum dilution (dashed rectangle) was further addressed to identify the proportion of subjects with PPFP >20%. Data are reported as a positivity ratio for each clinical group.

Inline graphic — Anti-live T. cruzi trypomastigote IgG reactivity. The levels of anti-live trypomastigote antibodies were measured in serum samples collected from indeterminate (IND, = 5) and cardiac (CARD, = 10) Chagas disease patients. (A) Data are presented as mean ± standard error value of Percentage of Positive Fluorescent Parasite (PPFP), along the titration curve (1:128 to 1:16,384). (B) The differential reactivity pattern observed at 1:16,384 serum dilution (dashed rectangle) was further addressed to identify the proportion of subjects with PPFP >20%. Data are reported as a positivity ratio for each clinical group.