[Susceptibility of Triatoma infestans to various strains of Trypanosoma cruzi isolated from chagasic patients from the Triângulo Mineiro].
This data evaluated the susceptibility of T. infestans to seven different strains of T. cruzi from chagasic patients of the Triângulo Mineiro, isolated and adapted in Swiss mice. A total of 200 bugs were fed in mice in acute phase injected with the different strains of T. cruzi and at each 30 days, during 5 months, their feces were obtained by abdominal compression or spontaneous dejection. The overall positivity of T. infestans infection with these different strains of T. cruzi was 62.08%. There was a high mortality rate (60%) during the examination period. We conclude that T. infestans has a low susceptibility to these strains. This could explain the low rate of positivity in the xenodiagnosis in chagasic chronic patients of the Triângulo Minerio.
Nirschl
R A
RA
Departamento de Ciências Biológicas.
Soares Júnior
J M
JM
Pirani
E M
EM
Franciscon
J U
JU
Ramírez
L E
LE
D000818:Animals; D001938:Brazil; D014355:Chagas Disease / Q000469:parasitology*; D006801:Humans; D051379:Mice; D014224:Triatoma / Q000469:parasitology*; D014349:Trypanosoma cruzi / Q000302:isolation & purification*
Susceptibilidade do Triatoma infestans a diferentes cepas de Trypanosoma cruzi isoladas de pacientes chagásicos do Triângulo Mineiro.