TUBERCULOSIS
Written by U.S Immigration News Friday, 07 March 2014 23:37
Tuberculosis (TB) is a disease caused by a bacillus (Mycobacterium tuberculosis) which primarily affects the lungs. It is spread by tiny droplets carried in the air when an infected person sneezes, coughs or talks. It is a disease of global concern with a new person being infected every second. It is estimated about one third of the world’s population is infected.
How TB is contacted and spread
It is spread through the air when someone infected in the lungs coughs, sneezes, talks or spits.
It is not every infected person that becomes sick because the body defenses (immune system) can curtail the bacilli and it will remain in an inactive form for years.
Symptoms and signs