Virulence of mycorbacteria is due to:

Friends there are multiple factors are listed as virulence factors of the MTC, few of them are: Lipids and Fatty Acid Metabolism and Synthesis of complex lipids, lipoproteins Mycolic acid synthesis Cell envelope and cell wall proteins Some secretion system Proteins Inhibiting Antimicrobial Effectors of the Macrophage and protein kinases Different Proteases and proteins associated with it Apoptosis inhibition and arresting the phagosome