Quote:
Originally Posted by barb02
Is there any connection between testing positive for antibodies to tysabri and antibodies to JC virus  ? I still wonder why I developed antibodies to tysabri, had an allergic reaction to interferons and could not tolerate copaxone. |
No connection. Antibodies to the JC Virus mean you've been exposed to the JC Virus and your body produces JC Virus antibodies as a natural defense.
Antibodies to Tysabri mean that you're body has an allergic reaction to the Tysabri drug. Tysabri antibodies drastically reduce the drugs effectiveness (neutralizing its effect).