clinical features

Last reviewed 03/2022

Features develop between 4 and 10 years after the original infection, and are attributed to progressive, sclerosing demyelination with severe neurological impairment and include:

  • mental deterioration - regression of abilities with dementia
  • strange behaviour
  • convulsions
  • myoclonic jerks, which are generalised, repetative and occur at five to ten second intervals
  • pyramidal signs, with cerebellar ataxia