HHV-6 (Human Herpesvirus 6) is a common virus that many people carry in their bodies without knowing it. It often stays dormant (inactive) but can reactivate when the immune system is weakened — which is very relevant for myeloma patients.
Here are the main reasons HHV-6 can reactivate after myeloma treatment:
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HHV-6 (Human Herpesvirus 6) is a common virus that many people carry in their bodies without knowing it. It often stays dormant (inactive) but can reactivate when the immune system is weakened — which is very relevant for myeloma patients.
Here are the main reasons HHV-6 can reactivate after myeloma treatment:
- Chemotherapy lowers white blood cell counts, weakening immune defenses
- Steroids like dexamethasone suppress the immune system directly
- Stem cell transplants involve high-dose chemotherapy that essentially wipes out the immune system temporarily
- Immunomodulatory drugs (like lenalidomide or thalidomide) alter immune function
Essentially, myeloma and its treatments create the perfect conditions for dormant viruses like HHV-6 to wake up and cause problems. It's really important to flag any new or unusual symptoms — like fever, rash, confusion, or fatigue — to your care team after treatment, as these could signal a viral reactivation. Early detection makes management much easier.
Your oncologist may consider antiviral medications as a preventive or treatment measure, particularly around stem cell transplants.
May 13
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