The possible viral etiology of multiple sclerosis.

Age Factors Animals Demyelinating Diseases/immunology,microbiology,physiopathology Distemper Virus, Canine/pathogenicity Dogs Encephalomyelitis/microbiology Female Humans Leukoencephalopathy, Progressive Multifocal/microbiology Male Mice Multiple Sclerosis/epidemiology,etiology,immunology,microbiology Murine hepatitis virus/pathogenicity Remission, Spontaneous Sheep Slow Virus Diseases/complications Time Factors Transients and Migrants Virus Diseases/complications Visna-maedi virus/pathogenicity