21. "Trypanosoma brucei gambiense " evolved from a single progenitor ~ 10, 000 years ago. 22. Gruby also discovered a parasite in the blood of frogs he called " Trypanosoma sanguinis ". 23. Gaskell has recently used these techniques to study a human parasite called " Trypanosoma Brucei ". 24. The doctor later inspects the gut of the triatominae for growth of " Trypanosoma cruzi ". 25. The study done by McInnes et al . was the first to describe a Trypanosoma species from koalas. 26. Orlistat also show potential activities mycobacteria and " Trypanosoma brucei " parasite ( See further reading ). 27. The parasite Trypanosoma brucei, responsible for causing African sleeping sickness is being identified by GLIMMER 2.0" 28. "Dipetalogaster " is routinely infected by the Chagas disease parasite " Trypanosoma cruzi ". 29. Although rare, there were also many cases in which human beings and primates were infected with Trypanosoma lewisi. 30. It is an important vector of " Trypanosoma cruzi ", the causative agent of Chagas disease.