How does tuberculosis spread?

Airborne. When people who have active tuberculosis in the lung cough, thousands to hundreds of thousands of TB causing bacteria become airborne. People in close proximity will inhale the bacteria and thus get the disease.

Related Questions

How does mycobacterium tuberculosis attack and spread?

Tb Infection. How does mycobacterium tuberculosis attack and spread? Usually by droplet transmission through the air. Cough, fatigue and being in an area with Tb carriers or in a high risk environment where you come in contact with infected people. Read more...
InfectionAndSpread. Mycobacterium Tuberculosis Bacteria attacks healthy&some not so healthy people when they are exposed to some one who is already infected&has active infection with positive bacteria in their lungs.And by close contact one can acquire that bacteria.Not every one who gets infected comes up with the active disease but some do and others overcome with body's resistannce.Those infected are contagious. Read more...