Figure 4

The expanded DN T-cells express Vδ2 TCR. Flow cytometric panels showing the expression of Vδ1-TCR, Vδ2 TCR and CD56 marker on DN T-cells are shown (a). The frequency of Vδ2 within CD3 T-cells (b) was compared in HD (white bars), ZIKV (grey bars) and in DENV (hatched bars). The correlation between time after sympthoms onset (days) and the Vδ2 T cell frequency (c) during Zika infection is shown. The frequency of granzyme positive Vδ2 T cells (d) was compared in HD (white bars), ZIKV (grey bars) and in DENV (hatched bars). *p < 0.05.