Tuberculosis Infection and Transmission

Inhalation of air containing pathogenic MBT released by a TB patient through coughing, sneezing, and talking

Insufficient activity of mucociliary clearance creates preconditions for mycobacteria to penetrate the trachea, bronchi, and alveoli

Mycobacteria penetrate the alveoli, then enter the lymphatic vessels, and spread through the body with the flow of lymph

<p>Intrathoracic lymph nodes, less often the lungs and other organs</p> Signup and view all the answers

<p>TB pathogens penetrate the lymphatic vessels and spread through the body with the flow of lymph</p> Signup and view all the answers

<p>The primary mechanism is through coughing, sneezing, and talking by a TB patient with an active form of the disease, and this leads to infection when others inhale the air containing pathogenic MBT.</p> Signup and view all the answers

<p>Insufficient activity of the mucociliary clearance creates the preconditions for the penetration of mycobacteria into the trachea, bronchi, and ultimately, the alveoli.</p> Signup and view all the answers

<p>The alveoli are the endpoint of the penetration of mycobacteria, and from here, they easily penetrate into the lymphatic vessels and spread through the body with the flow of lymph.</p> Signup and view all the answers

<p>The lymphatic system plays a critical role in the spread of TB, and the primary sites of settlement and persistence are the intrathoracic lymph nodes, and less often, the lungs and other organs.</p> Signup and view all the answers

<p>The TB pathogen spreads through the body with the flow of lymph, and the consequences of this spread include the settlement and persistence of the pathogen in various organs, particularly the intrathoracic lymph nodes and lungs.</p> Signup and view all the answers