Viliuisk encephalomyelitis--review of the spectrum of pathological changes.

Viliuisk encephalomyelitis (VE) is an unique neurological disease occurring in the Iakut (Sakha) people of Siberia. Evolution of the disease follows one of three broad clinical forms: subacute, slowly progressive or chronic. Death occurs within 3 to 6 months in subacute cases and within 6 years in the slowly progressive cases.

[Correlation of heredity and environmental factors in the etiology of Vilyui encephalomyelitis. I. Patient frequency in families].

Viljuisk encephalomyelitis (VE) is a severe neurologic disease characterized by slow progressive dementia', oligobradykinesia, low spastic paraparesis and speech disturbances. It develops in persons of 20-50 years old. VE occurs in a small region of middle Viljui, but for last years the focus has considerably expanded.