HTLV

1. human T-cell lymphotropic virus: any of a family of retroviruses associated with certain leukemias and immune system deficiencies.

HTLV

abbreviation for

1. human T-cell lymphotrophic virus: any one of a small family of viruses that cause certain rare diseases in the T-cells of human beings; for instance, HTLV I causes a form of leukaemia