Tuberculosis is a chronic infectious disease caused by infection with Mycobacterium tuberculosis. Tuberculosis may invade various organs of the body, but mainly invades the lungs, called tuberculosis.
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| What is tuberculosis? What are the causes and clinical manifestations of tuberculosis? |
Tuberculosis is a chronic and delayed infection that is easy for young people to develop. The incubation period is 4 to 8 weeks. 80% of them occur in the lungs, and other parts (neck lymph, meninges, peritoneum, intestines, skin, bones) can also be infected. Respiratory spread between people is the main form of infection. The source of infection is a tuberculosis patient who is exposed to bacteria. With the spread of environmental pollution and AIDS, the incidence of tuberculosis has become more intense. In addition to a small number of rapid onset, clinically many chronic processes. There are often low-heat, fatigue and other systemic symptoms and respiratory system such as cough and hemoptysis.
Cause
1.Primary
When the body's resistance is reduced, the tuberculosis that first invades the body through the respiratory tract or digestive tract often forms a primary lesion in the lung or intestine.
