Characterization of Trypanosoma cruzi Strains Isolated from Chronic Chagasic Patients, Triatomines and Opossums Naturally Infected from the State of Rio Grande do Sul, Brazil

Abstract

Thirty-five

Trypanosoma cruzi I genotype among isolates from patients with chronic Chagas disease followed at the Evandro Chagas National Institute of Infectious Diseases (FIOCRUZ, Brazil)

“…However, TcII is the most important agent of severe heart disease, including megacardia, and digestive syndromes, such as megaesophagus and megacolon, mainly in central and eastern regions of Brazil [6][7][8]19,20 . The TcVI genotype is prevalent in Southern Brazil (Rio Grande do Sul), and it has been also associated with cardiac and digestive forms 7,8,24 .…”

Coexistence of Trypanosoma cruzi Genotypes in Wild and Periodomestic Mammals in Chile

“…[6][7][8] These reservoirs include marsupials, edentates, and rodents. 7,9,10 The proportion of infected reservoirs is variable according to the local epidemiologic situation, and its magnitude depends on the density and rates of infected triatomine vectors in each ecologic niche.…”

Diversidade genética de populações naturais do <em>Trypanosoma</em> cruzi no Paraná, Sul do Brasil

“…In Rio Grande do Sul, another state in Southern Brazil, Fernandes et al (1997), analyzing isoenzyme and RAPD profiles of T. cruzi strains isolated from reservoirs, triatomines and humans, two independent groups of strains were also observed, related to the sylvatic transmission cycle and the domestic one. These authors observed a close correlation between the main groups defined by RAPD and by isoenzyme profiles.…”