LAG3 and tuberculosis: Furthermore, LAG‐3 is highly expressed in granulomas of TB, in macaques with ATB, as well as in animals with LTBI reactivated by simian immunodeficiency virus (SIV) coinfection, while it is not expressed in the lungs of animals with LTBI or infected with SIV or other pulmonary bacterial pathogens other than mycobacteria.