The present disclosure provides isolated peptides derived from human T-lymphotropic
virus type 1 (HTLV-1),
peptide-based molecules (e.g.,
peptide-MHC (pMHC) complexes), polynucleotides and vectors encoding the peptides or
peptide-based molecules, pharmaceutical compositions (e.g., vaccine compositions), and their use for treating, preventing, and / or reducing the likelihood of HTLV-1 infection and / or HTLV-1-induced
disease. The present disclosure also provides binding moieties that bind to the peptides or peptide-based molecules disclosed herein, and their use for treating, preventing, and / or reducing the likelihood of HTLV-1 infection and / or HTLV-1-induced
disease. The present disclosure also provides methods and systems for identifying immunogenic
virus-derived peptides.