A viral infection of the coating around the nerves of the brain. Symptoms: Memory loss, motor control problems, mood changes, seizures, vision impairment and/or speech impairment.
a rapidly progressing, often fatal brain disease believed to be caused by the JC papovavirus. PML infects oligodendrocytes (support cells in the brain) and leads to deterioration of the brain's white matter. Symptoms include headache, changes in mental status, speech and vision difficulties, limb weakness, seizures, loss of coordination and paralysis.
a viral infection of the brain -- commonly abbreviated as PML. Symptoms include memory loss, loss of strength, coma, and death. This is considered an AIDS-defining condition in the United States.