Immunopathological Aspects of Experimental Trypanosoma cruzi Reinfections

Table 1

Amastigotes nests, inflammatory infiltrate, and fibrosis in cardiac tissue.

Groups	Amastigotes nests (%)	Inflammatory infiltrate %			Fibrosis; (% area ± SEM)
		Mild	Moderate	Severe
Col	16.6	0	100	0	0.70 ± 0.13
Col/Col	33.3*	0	33.3	66.6*	0.28 ± 0.04
Col/Y	0	50	50	0	0.84 ± 0.79
Y	0	100	0	0	0.31 ± 0.09
Y/Y	0	100	0	0	0.56 ± 0.14
Y/Col	10	0	100	0	0.37 ± 0.10
Control	—	—	—	—	0.39 ± 0.17

The qualitative variables were expressed in percentage, and the associations between them were analyzed using Chi-square test (𝜒²), ^∗𝑃<0.005. The percentage of fibrosis in the cardiac tissue was analyzed using ANOVA test followed by Tukey’s multiple comparison test. *Significant differences among Col group versus Col/Col versus Col/Y versus control group.