引起人类睡眠病的锥虫为冈比亚锥虫和罗德西亚锥虫,家畜的则为刚果锥虫、活动锥虫和布氏锥虫布氏亚种,传播媒介为舌蝇。目前由于诊断手段的限制,对人及家畜锥虫病发病率和流行情况不甚清楚。临床诊断因该病无特异症状而难以下结论;实验室诊断又因外周血中虫体稀少及原虫血症的波动特性而受到限制。血清学诊断同样存在问题:第 Trypanosomiasis, which causes human sleep problems, is Trypanosoma gambiense and Rhodesia trypanoskera, while domesticated animals are Trypanosoma gondii, Trypanosoma cruzi, and Trypanosoma brucei, and the vector is tsetse. Due to the limitations of diagnostic methods, the prevalence and prevalence of trypanosomiasis in humans and livestock is not well understood. Clinical diagnosis of the disease because of no specific symptoms and difficult to draw conclusions; laboratory diagnosis due to peripheral blood sparse and protozoospermia fluctuation characteristics are limited. Serological diagnosis of the same problems: the first