How can tuberculosis bacillus develop spores?

Tuberculosis bacillus, specifically Mycobacterium tuberculosis, does not develop spores. Instead, it is a non-spore-forming bacterium that relies on its ability to survive in a dormant state within host macrophages, where it can evade the immune system. It forms a tough, waxy cell wall that helps it resist environmental stresses and survive for long periods outside a host. This unique adaptation is crucial for its pathogenicity, but it does not involve spore formation like some other bacterial species.