Similar to the T. gondii data, both WT and P2X7R−/− mice had increased expression of epithelial CCL5 relative to naive mice following infection (Figure 2c) and CCL5 expression was significantly reduced in P2X7R−/− epithelial cells (Figure 2c; 10±3.3 in WT vs 4.5±4.0 in P2X7R−/−, P=0.042). Here, CCL5 is linked to infection.