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: a tropical disease that causes fever, sleepiness, and usually death
Full Definition of SLEEPING SICKNESS
: a serious disease that is prevalent in much of tropical Africa, is marked by fever, headache, lethargy, confusion, and sleep disturbances, and is caused by either of two trypanosomes (Trypanosoma brucei gambiense and T. b. rhodesiense) transmitted by tsetse flies
: any of various viral encephalitides or encephalomyelitides of which lethargy or somnolence is a prominent feature
: a serious disease that is prevalent in much of tropical Africa, is marked by fever, headache, protracted lethargy, confusion, sleep disturbances, tremors, and loss of weight, is caused by either of two trypanosomes (Trypanosoma brucei gambiense and T. b. rhodesiense), and is transmitted by tsetse flies—called also African sleeping sickness
: any of various viral encephalitides or encephalomyelitides of which lethargy or somnolence is a prominent feature; especially:equine encephalomyelitis
Protozoal disease transmitted by the bite of the tsetse fly. Two forms, caused by different species of the genus Trypanosoma, occur in separate regions in Africa. The parasite enters the bloodstream and invades the lymph nodes and spleen, which become swollen, soft, and tender. Irregular fever and delayed pain sensation develop. In the Rhodesian form, the patient soon dies of massive toxemia. The Gambian type progresses to brain and spinal cord invasion, causing severe headache, mental and physical fatigue, spastic or flaccid paralysis, chorea, and profound sleepiness, followed over two or three years by emaciation, coma, and death. Some patients develop a tolerance but still carry the trypanosomes. The earlier drug treatment begins, the greater the chance of recovery. Sleeping sickness is still prevalent in parts of Africa despite efforts to control it.