JC Virus - BK Virus



Progressive multifocal leukoencephalopathy (PML) is a fatal demyelinating disease caused by infection with JC virus or BK virus.



X-Linked Hyper IgM Syndrome


X-linked Hyper IgM syndrome - Fatal PML with JC virus and BK virus has been reported in a single adult patient with this disease.

DOCK8 Deficiency


DOCK8 Deficiency -Sporadic cases of PML due to JC virus have been reported