ITGAX and infection: When we examined the migratory (CD11c+MHCIIhiLinneg) DC subsets in uninfected animals, we found that ~30% of the cDC2 cells and DP cells from CD11c-Cxcr5Tg mice expressed the GFP reporter (Figure S1E,F) and the frequency (Figure S1E,F) and number (Figure 3D,E) of these GFP+ cDC2 and DP cells modestly increased following infection.