What is TB (Tuberculosis) Tuberculosis (TB) is a potentially serious bacterial infection that primarily affects the lungs, although it can also affect other parts of the body such as the kidneys, spine, and brain. The bacteria that cause tuberculosis is called Mycobacterium tuberculosis. How does TB spread? TB is spread through the air when an infected person coughs, sneezes, or talks, and another person inhales the bacteria. It is important to note that not everyone who is infected with TB will develop active tuberculosis, as the bacteria can remain dormant in the body for years without causing any symptoms. Signs and symptoms of TB Symptoms of TB may include a persistent cough, coughing up blood or phlegm, chest pain, weakness, fatigue, weight loss, fever, and night sweats. In some cases, tuberculosis can also cause other complications such as meningitis, which affects the brain and spinal cord, and bone or joint infections. The signs and symptoms of TB can vary depending on th...
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