CD8A and infection: Moreover, frequencies of CD8+ TN and CD8+ TCMint were not changed after infection (Fig. 3h, k, blue bars), CD8+ TNint and CD8+ TCM subpopulations were decreased in all infected (vs. control) groups (Fig. 3i, l, blue bars), while CD8+ TEM subset (8.2–15.1-fold) expanded in infected mice (Fig. 3j, blue bars).