Cytokine production by PhAg-stimulated Vδ2 T-cells in haplo-HSCT recipients with no-VR and CMV-R. (A) Representative dot plot of IFN-γ– and TNF-α–producing Vδ2 T cells after PhAg stimulation from patients with no-VR and patients with CMV-R. (B) The frequency of IFN-γ– and TNF-α–producing Vδ2 T cells after PhAg stimulation was analyzed in patients with No-VR (white boxes, n = 11) and in patients with CMV-R (orange, n = 9). Differences between patients with No-VR and patients with CMV-R were evaluated by Mann-Whitney U test. ∗P < .05.