CD8A and infection: In Figures 7E,F, the levels of circulating CD8 T cells and ZIKV-specific CD8 T cells on days 7, 14 and 26 post i.v. are displayed and confirm the presence of a robust ZIKV-specific CD8 T cell population around week 1 post i.v. infection that has contracted significantly by week 4 post i.v.