RENBP and infection: Furthermore, by analyzing Ag85B tetramer specific T lymphocytes in the lungs after 2 and 6 weeks post-infection, we observed a contraction of Ag-specific T lymphocytes in mice vaccinated with CAF01+H56 in presence of RA and an increase of Ag85B-specific T lymphocytes expressing PD1 molecules as compared to mice vaccinated with CAF01+H56 in presence of RA vehicle, suggesting that an exhaustion following activation occurred in Ag-specific T cells in the lungs of mice vaccinated in presence of RA.