John Cunningham Virus
Full Form of JCV
What is JCV?
The John Cunningham Virus (JCV) is a type of polyomavirus that is widespread in the human population, with most people acquiring it during childhood without any symptoms. It remains latent in the kidneys and lymphoid tissues. However, in individuals with severely weakened immune systems—such as those with HIV/AIDS, organ transplant recipients, or patients on immunosuppressive therapies—JCV can reactivate and cause a rare but life-threatening brain infection called progressive multifocal leukoencephalopathy (PML). In India, JCV testing is increasingly relevant for patients with multiple sclerosis who are being considered for disease-modifying therapies like natalizumab, which can increase PML risk. The virus is detected through PCR of cerebrospinal fluid or brain biopsy. Knowledge of JCV is essential for medical students preparing for NEET PG, USMLE, and other clinical exams, as it illustrates the intersection of virology, immunology, and neurology. The acronym is used predominantly in medical reports, research papers, and neurology discussions.
JCV का फुल फॉर्म
जॉन कनिंघम वायरस
Example
The neurologist recommended a JCV antibody test before initiating natalizumab therapy for the MS patient.