How long do mycobacteria survive on a surface?

Mycobacteria, such as Mycobacterium tuberculosis, can survive on surfaces for varying periods, typically ranging from a few hours to several months, depending on environmental conditions like temperature, humidity, and the type of surface. They are resilient organisms, often persisting longer in dry environments. However, their viability decreases over time, especially with exposure to sunlight and disinfectants. Regular cleaning and disinfection are essential to reduce the risk of transmission.