Tuberculosis (TB) is a contagious disease. It spreads through airborne droplets released when a person carrying active TB bacteria coughs, sneezes, or talks. Healthy individuals can contract the disease by inhaling these infected droplets.
Transmission of tuberculosis typically requires prolonged and close contact with an an infected person. However, it is important to note that only individuals with active pulmonary tuberculosis can transmit the disease.
Spending extended periods in crowded and poorly ventilated environments increases the risk of transmission. The disease develops more easily, particularly in individuals with weakened immune systems. A strong immune system can reduce the risk of contracting the disease, even after contact with an infected person.