Following infection with T. muris, a significant increase in the number of MAdCAM-1 expressing cells was observed in the large intestine of both ΔdblGATA-1 and BALB/c mice (Fig. 6a-c; Two-way ANOVA showed a significant effect of infection F (1,26) = 9.413, p = 0.0050). This evidence concerns the gene MADCAM1 and infection.