Hyperproliferation of infected HSCs in the BM of HTLV-1-HU-NOD/SCID mice. (A) Predominance of CD34⁺/CD38⁻ human stem cell subpopulation among human lymphocytes in the BM of the HTLV-1-HU-NOD/SCID mouse (iii) in comparison with mock-infected HU-NOD/SCID mouse (ii) when gated on human CD45 subpopulation (i). (B) Cumulative quantization of CD34⁺/CD38⁻ and CD34⁺/CD38⁺ subpopulations in BM of HTLV-1 infected (n = 7) and mock-infected HU-NOD/SCID mice (n = 8).