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Progressive multifocal leukoencephalopathy (PML)

for Veterans and the Public

Progressive multifocal leukoencephalopathy (PML)

This disease is caused by a virus called the JC virus. Most people probably already are infected, but in HIV-positive people the virus can cause disease. The virus is possibly spread through sexual contact, or from mother to child.

Symptoms can include:

  • difficulty in speaking
  • difficulty in walking
  • weakness in arms or legs
  • personality changes
  • seizures
  • changes in vision
  • headache
  • shaky hands

There is no specific treatment for PML, but some HIV drug combinations can reverse the symptoms and keep the JC virus under control. People with PML should have a good support system. Friends, roommates, or family members can help make sure that HIV medications are taken on time, in the right combination, and at the right dose. The disease is extremely serious and can lead to death.