The expression of the GFM1 gene failed to increase significantly in PBMC from the Boran cattle over the time course; PBMC from N'Dama, on the other hand, displayed highly significant increases at 25 and 29 dpi in particular compared to pre-infection levels (1.7-fold, P = 0.0095 and 1.8-fold, P = 0.0085 respectively). This evidence concerns the gene GFM1 and infection.