In latent TB , the body’s immune system has walled off (encapsulated) the bacteria into tiny capsules called tubercles..
What is tuberculosis?
Tuberculosis (TB) is a bacterial infection that usually affects the lungs (pulmonary TB), but can affect other parts of the body (extrapulmonary TB).
Tuberculosis is classified as latent or active.
In latent TB , the body’s immune system has walled off (encapsulated) the bacteria into tiny capsules called tubercles. Although the TB-causing bacteria are in your body, you cannot spread the infection to others. However, you are at risk for developing active TB if your immune system becomes weakened.In active TB , the infection is spreading in your body and, if your lungs are infected, you can spread the disease to others