CTSS and infection: The first five of these genes (GZMB, LYZ, XDH and GBP4) have comparable expression profiles for N'Dama and Boran and therefore have no significant breed differences after infection; the last three (CTSS, NCR3 and BAFF), on the other hand, have diverging profiles and significant differences between N'Dama and Boran at either 14 or 21 dpi.