Tuberculosis is a common infectious disease caused by bacteria called mycobacterium tuberculosis which affects the lungs. Main symptoms of TB are severe cough that lasts for three weeks or longer, bloody or discoloured sputum, night sweats, fever, fatigue and weakness, pain in the chest, loss of appetite, and pain during breathing or coughing.
India had the highest total number of TB cases worldwide in 2010. Serious forms of TB can be prevented by BCG vaccination and maintaining high levels of hygiene. Maintaining cough hygiene is most important to maintain the spread of the disease. One infected, the patient should follow the medication regimen properly. By not doing so, there are chances of developing resistance to anti-TB drugs resulting in an aggressive form of TB called MDR-TB (multi-drug resistant TB).