IFNG and tuberculosis: The second canonical had also a weak negative correlation with ∆_MIP-1α and ∆_IFN-γ (−0.37; −0.31 respectively), and a slightly positive correlation with ∆_IP-10 (0.32), and ∆_IL1-β (0.33) which prevents it differentiating animals presenting or not visible TB post-mortem lesions (affected vs. infected).