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TB is spread from person to person through the air. When people with lung TB cough, sneeze, or spit, they propel the TB germs into the air. A person needs to inhale only a few of these germs to become infected. The bacteria are put into the air when a person with TB disease of the lungs or throat coughs or sneezes. Laughing, singing, or playing brass or woodwind instruments can also spread the germs in an enclosed space. People nearby may breathe in these bacteria and become infected. Tuberculosis (TB) is caused by bacteria (Mycobacterium tuberculosis) that most often affect the lungs. Tuberculosis is curable and preventable. When a person breathes in TB bacteria, the bacteria can settle in the lungs and begin to grow. From there, they move through the blood to other parts of the body such as the kidney, spine, and brain.
Tuberculosis (TB) is caused by bacteria (Mycobacterium tuberculosis) that most often affect the lungs. Tuberculosis is curable and preventable. TB is spread from person to person through the air. When people with lung TB cough, sneeze, or spit, they propel the TB germs into the air. A person needs to inhale only a few of these germs to become infected. The bacteria are put into the air when a person with TB disease of the lungs or throat coughs or sneezes. Laughing, singing, or playing brass or woodwind instruments can also spread the germs in an enclosed space. People nearby may breathe in these bacteria and become infected. When a person breathes in TB bacteria, the bacteria can settle in the lungs and begin to grow. From there, they move through the blood to other parts of the body such as the kidney, spine, and brain.
Tuberculosis (TB) is caused by bacteria (Mycobacterium tuberculosis) that most often affect the lungs. Tuberculosis is curable and preventable. TB is spread from person to person through the air. When people with lung TB cough, sneeze, or spit, they propel the TB germs into the air. A person needs to inhale only a few of these germs to become infected. The bacteria are put into the air when a person with TB disease of the lungs or throat coughs or sneezes. Laughing, singing, or playing brass or woodwind instruments can also spread the germs in an enclosed space. People nearby may breathe in these bacteria and become infected. When a person breathes in TB bacteria, the bacteria can settle in the lungs and begin to grow. From there, they move through the blood to other parts of the body such as the kidney, spine, and brain.
TB is spread from person to person through the air. When people with lung TB cough, sneeze, or spit, they propel the TB germs into the air. A person needs to inhale only a few of these germs to become infected. The bacteria are put into the air when a person with TB disease of the lungs or throat coughs or sneezes. Laughing, singing, or playing brass or woodwind instruments can also spread the germs in an enclosed space. People nearby may breathe in these bacteria and become infected. When a person breathes in TB bacteria, the bacteria can settle in the lungs and begin to grow. From there, they move through the blood to other parts of the body such as the kidney, spine, and brain. TB in the lungs or throat can be infectious. This means that the bacteria can be spread to other people. TB in other parts of the body, such as the kidney or spine, is usually not infectious.
About one-third of the world’s population has latent TB, which means people have been infected by TB bacteria but are not (yet) ill with disease and cannot transmit the disease. When a person breathes in TB bacteria, the bacteria can settle in the lungs and begin to grow. From there, they move through the blood to other parts of the body such as the kidney, spine, and brain. TB in the lungs or throat can be infectious. This means that the bacteria can be spread to other people. TB in other parts of the body, such as the kidney or spine, is usually not infectious. About one third of the world’s population has latent TB, which means people have been infected by TB bacteria but are not (yet) ill and cannot transmit the disease. With most people who breathe in TB bacteria and become infected, the body is able to fight the bacteria to stop them from growing. The bacteria become inactive, but they remain alive in the body and can become active later. This is called Latent TB Infection or LTBI for short.
About one third of the world’s population has latent TB, which means people have been infected by TB bacteria but are not (yet) ill and cannot transmit the disease. With most people who breathe in TB bacteria and become infected, the body is able to fight the bacteria to stop them from growing. The bacteria become inactive, but they remain alive in the body and can become active later. This is called Latent TB Infection or LTBI for short. People with LTBI: Have no symptoms. Don’t feel sick. Can’t spread TB to others. Usually have a positive skin test reaction. Can develop TB disease later in life if they do not receive treatment for LTBI. Many people who have LTBI never develop TB disease. In these people, the TB bacteria remain inactive for a lifetime without causing disease. But in other people, especially people who have weak immune systems, the bacteria become active and cause TB disease.
About one third of the world’s population has latent TB, which means people have been infected by TB bacteria but are not (yet) ill and cannot transmit the disease. With most people who breathe in TB bacteria and become infected, the body is able to fight the bacteria to stop them from growing. The bacteria become inactive, but they remain alive in the body and can become active later. This is called latent TB infection or LTBI for short. People with LTBI: Have no symptoms. Don’t feel sick. Can’t spread TB to others. Usually have a positive skin test reaction. Can develop TB disease later in life if they do not receive treatment for LTBI. Many people who have LTBI never develop TB disease. In these people, the TB bacteria remain inactive for a lifetime without causing disease. But in other people, especially people who have weak immune systems, the bacteria become active and cause TB disease.
See video: History of TB
See video: History of TB
See video: History of TB
