Understand Your Test

Human T-cell Lymphotropic Virus (HTLV) Testing

Formal Name


Human T-Lymphotropic Virus Types I/II Antibodies; HTLV-I/II by PCR


Why Get Tested?

To detect a human T-lymphotropic virus (HTLV) infection; to help diagnose the cause of adult T-cell leukemia or lymphomaor HTLV-associated myelopathy.

When To Get Tested?

When you have signs or symptoms that suggest that you may have an HTLV-associated neoplastic condition or demyelinating disorder, especially when you have identified risk factors; rarely when you have donated blood and been told that you are positive for HTLV antibodies.