[Progressive multifocal leukoencephalopathy (PML)].
D000293:Adolescent; D000818:Animals; D002648:Child; D002675:Child, Preschool; D006224:Cricetinae; D000882:Haplorhini; D006801:Humans; D007968:Leukoencephalopathy, Progressive Multifocal / Q000382:microbiology; D027383:Papillomaviridae / Q000302:isolation & purification*; D027382:Polyomaviridae