what triggers dormant cough
Tuberculosis is a bacterial infection that begins in the lungs. TB is spread through the air when an infected person coughs or sneezes, spreading the bacteria in aerosol droplets. When you are exposed to TB, the bacteria can be destroyed by your immune system and you will not be infected.eople with dormant TB are apt to develop the infection even years after having dormant TB. There are many triggers that can cause dormant TB to become active and start multiplying. It is likely to be caused by a weakening of your immune system. This occurs naturally with age.