Extrapulmonary tuberculosis is generally not contagious. The main mode of transmission of tuberculosis is through droplet infection through the respiratory tract.
Tuberculosis is caused by Mycobacterium tuberculosis, chronic respiratory infectious diseases, the state's legal B. With higher living standards, advances in chemotherapy of tuberculosis, tuberculosis epidemic getting better. But over the past ten years, due to population movements, spread of drug-resistant tuberculosis, AIDS and other factors, the TB epidemic worldwide rebound. Human-type Mycobacterium tuberculosis is a major pathogen of human tuberculosis, mainly by droplet infection through the respiratory tract. Tuberculosis, all of the symptoms are nonspecific, the World Health Organization and China are to cough, sputum or hemoptysis more than three weeks as a suspected TB symptoms. The main types of primary tuberculosis, hematogenous disseminated tuberculosis, secondary tuberculosis. In accordance with the early, joint, full, regular, adequate chemotherapy principles, use of full supervisory management, and regular chemotherapy in two weeks that would allow more than 90% of patients were lost to infectious, is an important preventive measure.
Tuberculosis is caused by Mycobacterium tuberculosis, chronic respiratory diseases.