In untreated rabbits, most of these genes were progressively induced by Mtb infection from 4 to 8 weeks, and many had reached a plateau (IFN-γ, IL13, IL6, MIF, CCL4, NFκB, APRIL, TLR2, RAB7 and LAMP2) or were even reduced (IL10, CXCR3, GMCSF and PI3K3) by 12 weeks post-infection. This evidence concerns the gene MIF and infection.