What is JC virus test?

Category: Procedures


The JC virus (JCV) is a type of human polyomavirus and is genetically similar to BK virus. It was discovered in 1971 and named after the two initials of a patient with progressive multifocal leukoencephalopathy (PML). The virus causes PML and other disease in cases of immunodeficiency.

Side effects

Side effects as an overall problem

Side effects as an overall problem
Severity Evaluations
Severe 0
Moderate 0
Mild 0
None 3

Commonly reported side effects and conditions associated with JC virus test

Side effect Patients
Adherence Evaluations
Always 1
Usually 0
Sometimes 1
Never taken as prescribed 1
Burden Evaluations
Very hard to take 0
Somewhat hard to take 0
A little hard to take 0
Not at all hard to take 3
Cost per month
Cost per month Evaluations
$200+ 0
$100-199 0
$50-99 0
$25-49 0
< $25 1
Not specified 2
Last updated:

1 patient evaluation for JC virus test

Sep 17, 2012 (Started Sep 17, 2012)

  • Effectiveness
    None (for Evaluation/monitoring)
  • Side effects
  • Adherence
  • Burden
    Not at all hard to take
Dosage: One time
Advice & Tips: Normally administered as a precautionary discovery due to the potentially life threatening aspect (PML) of the JC virus when taking or considering taking Tysabri. I only did this to discover if I had the JC virus antibody. It may have meant I had PML instead of MS.
Cost: < $25 monthly

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Last updated:
Showing 1 of 1 patient evaluation for JC virus test