Human Herpesvirus 6 (HHV-6) Antibody, Serum (Qualitative Immunoassay)

Why This Test Might Be Ordered

Your healthcare provider may order this test if you have symptoms like fever, rash, or fatigue that could be linked to HHV-6 infection, especially if you have conditions like HIV, organ transplants, or certain blood disorders. It may also be used to monitor immune function or diagnose complications from previous infections.

What to Expect Before the Test

No special preparation is needed for this test. You’ll have a small needle inserted into your arm to draw blood. It usually takes a few minutes, and you may feel a brief pinch. If you’re on blood thinners, let your provider know before the test.

What the Test Results Mean

A positive result means your body has detected antibodies to HHV-6, suggesting past exposure or an active immune response. A negative result means no detectable antibodies were found at this time. Results don’t indicate the current viral load or severity of infection.

Common Reasons for Testing

This test is often used in patients with immune system issues, those undergoing transplant, or individuals with unexplained symptoms that could be related to viral infections. It’s not typically used for routine screening in healthy individuals.