what is the importance of the penisulan parasite trypanosoma lewisi?

Question

it's a biology homework question

Answer 1

Trypanosoma lewisi infections in rat colonies can interfere with research protocols
T. lewisi), there can be no doubt that considerable polymorphism also sometimes occurs (e.g. T. rotatorium). In many cases, at any rate, this indicates a difference in sexuality; and it is particularly necessary to bear this factor in mind when considering the avian Trypanosomes, where, perhaps, the extremes of form are to be met with. That one and the same species may appear entirely different in different phases of the life-history is manifest on comparing, for instance, the chief " forms " of Trypanosoma