Fig. 1.

Contour plots of analysed leukocyte populations and lymphocyte subpopulations. (a) Main PBMC populations in the forward vs. side scatter. (b) Monocytes and pDCs as characterized by their expression of the porcine pan-myeloid marker SWC3 as well as CD4. (c) CD21⁺ B cells. (d) Typical CD4 and CD8 expression pattern of porcine lymphocytes with a significant proportion of extrathymic CD4⁺CD8⁺ double positive cells. (e) Activated Th cells. (f) Memory Th cells. (g) NK cells and CTLs. (h) Tregs. (i) γδ T cells.