Tuberculosis is a national statutory category B infectious disease. Tuberculosis patients who excrete a large amount of bacteria (sputum smear positive) are the main source of infection and are the most infectious. Tuberculosis patients with positive cultures and no sputum for tuberculosis bacilli are less infectious because the amount of excreted bacteria is small. Humans are generally susceptible to tuberculosis. Tuberculosis is one of the more contagious diseases. Patients with TB are usually characterized by chest tightness, fever, and shortness of breath. What are the ways in which this disease is transmitted, we will now learn. There are usually four ways of transmission of tuberculosis: 1. Air and droplet transmission This is also one of the most important ways of transmission. Patients should be aware of avoiding confined and uncirculated environments and pay more attention to ventilation to avoid infectious diseases. 2.Contact transmission A patient with tuberculosis has a strong transmission. If he has used dishes or supplies without timely disinfection, it can be spread to healthy people through various contact methods. Therefore, it is important to pay attention to isolation and disinfection. Tuberculosis virus is highly contagious, try to avoid using the same tableware, you can take the principle of eating separate meals. 3, maternal transmission Pregnant women who are pregnant with a fetus if they have been or are changing into an infectious disease, then said the disease may cause fetal infection, the path of transmission is usually the placenta that transports nutrients. Maternal transmission to the fetus speaks only as a bearer, so as the mother should do a good examination before pregnancy, if it is a tuberculosis bacteria, try to recover well before considering pregnancy matters. 4, diet transmission If a child eats food chewed by a sick person, or shares a drinking cup with a sick person, etc., it can also cause the spread of the disease, and we say that the spread of the patient’s disease should usually pay attention to good prevention, and children can improve their immunity against the disease through vaccination and other means. Dietary transmission is also the most important thing that should be paid attention to, because the transmission can be avoided through good living habits.