Connect with others who understand.

  •   Learn from expert-reviewed resources
  •   Real advice from people who’ve been there
  •   People who understand what you’re going through
Sign Up Log In
Powered By
Real members of MyMSTeam have posted questions and answers that support our community guidelines, and should not be taken as medical advice. Looking for the latest medically reviewed content by doctors and experts? Visit our resource section.
A MyMSTeam Member asked a question 💭
Walterboro, SC

After my last relapse, my doctor wants me to get tested for the JC virus. Can someone explain to me what is the JC virus?

March 22, 2016
 · 
Be the first to react
A MyMSTeam Member

Keep us posted.

March 22, 2016
A MyMSTeam Member

If u r JC negative u Neuro will probably put u on Tysabri.

March 22, 2016
A MyMSTeam Member

The JC virus is a common infection completely unrelated to MS. About half of the population have been infected by the virus and it is normally kept under control by the immune system causing no problems. If the immune system is weakened and the body is less able to fight an infection, the virus can reactivate and cause serious and potentially fatal inflammation and damage to the brain known as progressive multifocal leukoencephalopathy (PML).

Treatment with some of the disease modifying drugs, in particular Tysabri, can increase the risk of developing PML.

March 22, 2016

Related Questions

View All
A MyMSTeam Member asked a question 💭
Fountain, CO

A MyMSTeam Member asked a question 💭
Springdale, WA

Continue with Facebook
Continue with Google
By joining, you accept our Terms of Use, and acknowledge our collection, sharing, and use of your data in accordance with our Health Data and Privacy policies.
Already a member? Log In