Figure 1

Venn diagrams to illustrate total numbers of genes whose expression levels were significantly altered (FDR ≤ 0.05) detected in each hybridisation experiment; 1a) Expt.1; day 5 post-challenge 1b) Expt. 2; day 2 post-challenge. Nv = "naïve" yearlings, worm naïve prior to challenge; Im = "immune" yearlings, previously infected by trickle infection prior to challenge; d0, d2, d5 = days post-challenge; (details in Table 1). The figures in the circled regions correspond to the number of genes with significantly altered (FDR ≤ 0.05) expression levels in each comparison (details given in Table 2) while the figures in the overlapping regions correspond to the number of genes whose expression levels were significantly altered (FDR ≤ 0.05) in two or more comparisons; eg. 8 genes showed significantly altered expression levels in both the Imd2/Imd0 and Imd0/Nvd0 comparisons. The figures outside the circled regions correspond to the numbers of genes on the array with no significant change in expression level in any of the comparisons.