Tuberculosis (Medical Definition) | Quick Explainer Video

Tuberculosis, commonly known as TB, is a contagious bacterial infection that primarily affects the lungs but can also spread to other parts of the body. It is caused by the bacterium Mycobacterium tuberculosis and is spread through the air when an infected person coughs or sneezes. Symptoms of TB include coughing, chest pain, fatigue, weight loss, and fever. Treatment typically involves a combination of antibiotics taken over several months to effectively kill the bacteria and prevent the spread of the disease. TB can be a serious condition if left untreated, so early detection and treatment are essential for a successful recovery.