FIG. 3.

Numbers of differentially expressed genes in human macrophages after infection with four M. avium strains. Human macrophages were infected with M. avium strains TMC724, 2151SmT, 2151SmO, and SE01 (MOI, 10) for 4 h. Differential gene expression was compared to expression in uninfected control cells using microarray technology. An array analysis was performed with two independent donor pools, each comprising five individuals. The total number of differentially expressed genes (induction or suppression) found in both donor pools is indicated.