摘要
this report describes a rare case of acute infection caused by two plasmodia and one trypanosoma. 5 year-old female patient attending kindergarten presented persistent fever syndrome. she was submitted to thick smear exam, in which asexual and sexual forms of plasmodium vivax and p. falciparum were detected, respectively, as well as trypomastigotes of trypanosoma cruzi. rhodnius sp. triatomines were found in the vicinity. the authors reinforce the importance of investigating the domiciliary cycles of t. cruzi in the amazon region. moreover, we discuss the importance of continuous monitoring of trypanosomas spp. in thick smear exams.