| [trypanosomiasis--a real risk for tourists visiting national parks in tanzania]. | african sleeping sickness is no longer a rare disease among tourists visiting national parks in tanzania. the disease is caused by a parasite, trypanosoma brucei, which is transmitted by the tsetse fly. two species infect humans: trypanosoma brucci gambiense and trypanosoma brucei rhodesiense; the last form is re-emerging in parts of africa. untreated this disease carries a mortality of nearly 100%. this article describes a case of african sleeping sickness in a tourist visiting tanzania, which ... | 2002 | 11851293 |