“…muximus and that, maintenance of a P. megistus colony in the laboratory is easier (fast development, slow locomotion, low mortality and easy to breed under changing enviroments). Nirschl et al (1994) analized the susceptibility of T. irzfestans infected by seven strains of T. cruzi derived from chagasic patients from TriGngulo Mineiro, MG, and concluded that this species had low susceptibility, which could explain the low rates of infectivity in xenodiagnosis in the same geographical area.…”