This ELISA kit is an enzyme-linked immunosorbent assay (ELISA) for qualitative detection of antibodies to Human T-Cell Lymphotropic Virus types 1 and/or 2 (HTLV-1/2) in human serum or plasma. It is intended for screening of blood donors and as an aid for the diagnosis of clinical conditions related to infection with HTLV-1 and/or HTLV-2.