Man suffering from sleeping sickness, Unyamwezi, Tanzania [s.d.]

"Ein Schlafkranker" ("A man suffering from sleeping sickness"). The man is lying on his side. He is lying on a mat on the ground, partly covered by a rug.; Sleeping sickness: Human African Trypanosomiasis is a parasitic disease. The parasites are transmitted to humans by tsetse flies which acquired their infection from human beings or from animals harbouring the parasites. Various kinds of tsetse flies are found in Sub-Saharan Africa but only certain species transmit the disease.

“昏睡病（sleeping sickness）患者（德语原文：Ein Schlafkranker，英文原文：A man suffering from sleeping sickness）”：该男子侧卧于地面铺设的席垫之上，身体部分被地毯遮盖。昏睡病即人类非洲锥虫病（Human African Trypanosomiasis），是一种寄生虫病。这类寄生虫经由采采蝇传播至人体，而采采蝇的感染来源为携带该寄生虫的人类或动物宿主。撒哈拉以南非洲地区分布有多种采采蝇物种，但仅部分特定物种能够传播该疾病。