Canadian Medical Guide > Organisms > Viruses > DNA Viruses > Polyomaviridae > Polyomavirus > JC Virus Terms and Definitions

JC Virus

Medical Definition:	A species of POLYOMAVIRUS, originally isolated from the brain of a patient with progressive multifocal leukoencephalopathy. The patient's initials J.C. gave the virus its name. Infection is not accompanied by any apparent illness but serious demyelinating disease can appear later, probably following reactivation of latent virus.
Guide Notes:	do not confuse with JAMESTOWN CANYON VIRUS (see ENCEPHALITIS VIRUS, CALIFORNIA); infection: coord IM with POLYOMAVIRUS INFECTIONS (IM) + TUMOR VIRUS INFECTIONS (IM) but consider also LEUKOENCEPHALOPATHY, PROGRESSIVE MULTIFOCAL
Previously Indexed:	Papovaviridae (1971-1982),Polyomaviruses (1971-1982)

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