human t-cell lymphotropic virus type-i (htlv-i) was the first human retrovirus associated with malignancy. the prevalence of htlv-i infection varies significantly in different regions of the world. in this study, the prevalence of htlv-i infection among ethnic jews living in shiraz, south of iran, was investigated. 286 blood samples were obtained. htlv-1 antibody assay on serum samples was d...