CD79A and infection: In the small intestine ΔdblGATA-1 mice had a non-significant decrease in the number of IgA+ cells in steady state, compared to BALB/c mice, which reached significance following T. gondii infection (Fig. 2a, c–f; Two-way ANOVA showed a significant effect of genotype F (1,30) = 28.72, p < 0.001 with a post-hoc Bonferonni test showing a significant effect at d10 (p < 0.0001) and d13 (p < 0.05) post-infection), although there was no significant increases in IgA+ cell numbers in mice of either genotype post-infection.