sleeping sickness

Any of several diseases of which lethargy is a major symptom:

Especially, African sleeping sickness, an endemic infectious disease of humans and animals in tropical Africa, caused by a parasitic trypanosome.

昏睡病

Any of several diseases of which lethargy is a major symptom:

Animal trypanosomiasis.

Any of several diseases of which lethargy is a major symptom:

Eastern equine encephalitis, caused by a zoonotic alphavirus and arbovirus present in North, Central and South America and the Caribbean.

Any of several diseases of which lethargy is a major symptom:

Encephalitis lethargica, a form of encephalitis, of unknown cause, that swept the world in the 1920s.