human t-lymphotropic virus type i ( htlv-i ) , the causative agent of adult t-cell leukemia and non-hodgkin 's lymphoma ( atll ) -- or a cross-reacting retrovirus -- has been associated with tropical spastic paraparesis in martinique , jamaica , colombia , trinidad and tobago , the seychelles , and probably also in zaire .
C0023492
adult t-cell
C0023493
atll