Hi, Tuberculosis is a Specific Disease caused by infection with Mycobacterium Tuberculosis, the Tubercle bacillus, which can affect almost any tissue or organ of the body , the most common site of the disease being the lungs. TB is generally classified as being either Latent or Active. Latent TB occurs when the bacteria at present in the body. but this state is inactive and presents no symptoms, and also not contagious. Active TB is contagious and in the condition that can make sick with symptoms. TB is spread from person to person through tiny droplets of infected sputum that travel through the air. When a person becomes infected with TB, the bacteria in the lungs multiply and cause pneumonia along with chestpain, coughing up blood ,and a prolonged cough. Better methods of preventing TB include eating a healthful diet that takes of your immume system. Take TB test regularly , such as skin, blood , and imaging tests, if you work or live in a high risk environment. Cover your mouth during journey. Tuberculosis has been treated with combination therapy called Multi- drugs-Treatment. The occurrence of HIV has been responsible for an increased frequency of tuberculosis. Control of HIV in the future, however , should substantially decrease the frequency of TB. TB is a major cause of illness and death worldwide, especially in Africa and Asia where the HIV rates in high.