CD4 and adult T-cell leukemia/lymphoma: The viruses present tropism for CD4+ and CD8+ T cells and are currently associated with adult T-cell leukemia/lymphoma (ATLL) and inflammatory diseases like HTLV-1-associated myelopathy (HAM), uveitis, infective dermatitis, arthritis, and other illnesses [3,4,5,6,7,8,9].