TB Facts

Tuberculosis, also known as TB, is a bacterial disease that infects the lungs and other parts of the body. It is transmitted through the air and occurs in every part of the world. Although it is most readily identifiable by a heavy cough, other symptoms can develop over time. Most people exposed do not develop the full infection for months or even years.

Features

• TB most readily attacks the lungs, but it can spread to other parts of the body. It can be infectious without causing symptoms, but once the disease manifests physically, it is easier to spread to other people.

Types

• Mycobacterium tuberculosis is the bacterium that causes TB in people. This bacterium can be found worldwide in a variety of environmental conditions.

Significance

• Transmission of TB occurs from person to person through the air. The bacteria enter the air when infected humans sneeze, cough, speak or laugh. When a person inhales the infected air, he is exposed.

Considerations

• TB bacteria do not stay isolated to the lungs. They travel through the bloodstream into different parts of the body, most notably the kidneys, brain and joints.

Warning

• Symptoms of TB are very noticeable when the disease begins to run its course. A person suffering from a bad cough lasting more than two weeks, chest pain, discharge of blood or phlegm, weakness or weight loss should see a doctor.