Immune cell infiltration to the spinal cord. Flow cytometry analyses performed 14 days after injury in Aplec and DA strains. Representative flow cytometry plots (A). Gated areas represent different cell populations, lymphocytes (a), macrophages (b), microglia (c) T-cells (d) activated infiltrating macrophages (e) and activated microglia (f). Strain differences are presented as percent of total cells and absolute numbers for T-cells (B), infiltrating macrophages (C), activated infiltrating macrophages (D), microglia (E) and activated microglia (F). Statistical analysis were done by Mann–Whitney test (*p < 0.05).