CD4+, CD8+ T cells and NK cells are all major Mtb-specific IFN-γ producers in TB.
CD8+ T cells are the most Mtb-specific IFN-γ-producing cells in HIV/TB patients.
Mtb-specific antigen stimulation in vitro increases NK cell activity of TB patients.
CD45RO is the characteristic marker of Mtb-specific IFN-γ-producing T cells.
Mtb-specific IFN-γ-producing NK cells have a high expression of CD11a.