Tuberculosis (TB) is an occupational hazard for healthcare workers. It is a bacterial infection of lungs and other body parts caused by strains of mycobacteria (Mycobacterium tuberculosis). Typical symptoms include chronic cough with bold-tinged sputum, fever, night sweats, and so on. Tuberculosis can cause significant morbidity and death. It is usually spread by air when infected people transmit their saliva through air by coughing and sneezing.