CD4 and tuberculosis: IL-17A/IFN-γ double positive CD4 cells would not be an immune mechanism associated to the shift we observed when an AA HD get tuberculosis, considering that AA HD and AA TB displayed the highest percentage of IL-17/IFN-γ double positive CD4 cells in Mtb-Ag stimulated PBMCs as compared to GG/GA HD or GG/GA TB respectively (Supplementary Figure S2).