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Testing positive for the JC virus while on Tysabri can be concerning due to the increased risk of developing progressive multifocal leukoencephalopathy (PML). Here are some key points to consider:

- Monitoring: Regular blood tests to monitor JC virus antibody levels are crucial. Higher levels increase the risk of PML
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Testing positive for the JC virus while on Tysabri can be concerning due to the increased risk of developing progressive multifocal leukoencephalopathy (PML). Here are some key points to consider:

- Monitoring: Regular blood tests to monitor JC virus antibody levels are crucial. Higher levels increase the risk of PML.
- Doctor's Advice: Always consult your doctor before making any changes to your treatment. They may recommend staying on Tysabri for a certain period before transitioning to another treatment.
- Side Effects: Be aware of Tysabri's side effects, including the risk of PML, liver damage, and other infections.
- Community Support: Many MyMSTeam members share their experiences and support each other when dealing with similar situations.

Ultimately, the decision should be made in close consultation with your healthcare provider, considering the benefits and risks specific to your condition.

 AI-generated responses are not a substitute for medical advice. These services are not intended to diagnose, treat, or cure any condition or disease. Always ask your doctor about specific health concerns.

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