Tuberculosis is an airborne communicable disease caused by Mycobacterium Tuberculosis. TB is spread by an infected person coughing or sneezing droplet nuclei into the air.
Close contacts are at highest risk of becoming infected.
They have a negative chest x-ray and no signs of disease. A doctor will evaluate them for TB preventive therapy. A TB skin test shows if there are TB germs in the body. Certain people should be tested. A fee of 8 dollars is charged.