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JC virus associated meningoencephalitis in an immunocompetent girl.
  1. K Blake,
  2. D Pillay,
  3. W Knowles,
  4. D W Brown,
  5. P D Griffiths,
  6. B Taylor
  1. Department of Child Health, Royal Free Hospital, London.


    JC virus is most commonly acquired during childhood, and no clinical illness has been associated with primary infection, which is assumed to be asymptomatic. The only disease associated with JC virus to date is progressive multifocal leucoencephalopathy (PML), which is usually caused by viral reactivation in immunocompromised adults. A chronic meningoencephalitis associated with an active JC virus infection in an immunocompetent 13 year old girl is described.

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