IL6 and type 2 diabetes mellitus: Although there was an increased frequency of F4/80+CD64+MHCII+IL-6+ cells in the lungs of Mtb-infected T2DM mice compared with those of uninfected T2DM mice at 6 months p.i. (Fig 6C), there was no significant difference between Mtb-infected non-diabetic control mice (Fig 6C).