Primeira evidência de Trypanosoma rangeli no sudeste do Brasil, região endêmica para doença de Chagas

Abstract

This short communication informs the discovery of Trypanosoma rangeli for the first time at Triângulo Mineiro region, South-east of Brazil, a highly endemic area of Chagas' disease and also the natural infection of Didelphis albiventris with the same trypanosome. Both the findings were demonstrated through blood smears, xenodiagnosis, microhematocrit technics and PCR. The last one was realized in faeces and hemolymph of Triatoma infestans utilizing as controls strains of T. rangeli from Colombia.

Characterization of Trypanosoma rangeli Strains Isolated in Central and South America: an Overview

“…Thereafter, it was also found in other Brazilian states (Diotaiuti et al 1992, Coura et al 1996, Ramirez et al 1998 (Fig. 2).…”

Canine trypanosomiasis: etiology of infection and implications for public health

“…According to DantasTorres (32), T. rangeli can be transmitted by both saliva and feces. In Brazil, T. cruzi and T. rangeli have been detected in naturally infected dogs and marsupials, respectively (20,33,34). The simultaneous presence of these parasites in the same geographic region allows mixed infection in vertebrate and invertebrate hosts (35).…”

Phylogeny, taxonomy and grouping of Trypanosoma rangeli isolates from man, triatomines and sylvatic mammals from widespread geographical origin based on SSU and ITS ribosomal sequences

“…In contrast, only three confirmed human cases were reported in Brazil, all in the Amazon Region (Coura et al 1996), where the presence of triatomines and sylvatic mammals infected with T. rangeli are common (Deane et al 1972 ;Miles et al 1983 ;Ziccardi et al 2000 ; Maia da Silva et al 2004). Outside Amazonia, T. rangeli was only reported in sylvatic mammals and triatomines of Southern and Southeast Brazilian regions (Steindel et al 1991 ;Ramirez et al 1998).…”