Refers to African trypanosomiasis, a parasitic disease transmitted by the tsetse fly, characterized by fever, headaches, joint pain, and sleep disturbances.
眠り病はツェツェバエによって媒介される。
Sleeping sickness is transmitted by the tsetse fly.
Compound of 眠り (nemuri, 'sleep') + 病 (byō, 'disease').