CD4 and infection: The CD4+TEM subset (P0) was increased in all infected (vs. control) groups (p2/4.Tc = nano2/4.Tc > Tc only, Figure 5EandTable S2C), and maximal percentage increase in CD4+TEM subset at 7 days after re-challenge (vs. 21 days after 1st infection) was observed in nano2/4.Tc mice (Figure S3A).