What is tuberculosis? How is tuberculosis spread?
Tuberculosis, or ‘TB’, is a disease caused by a germ (called the tubercle bacterium or Mycobacterium tuberculosis). TB usually affects the lungs, but can affect other parts of the body, such as the lymph nodes (glands), the bones and rarely the brain.
This disease used to be common in England. In the 1940s, over 50,000 cases of tuberculosis were notified each year. These days it is much less common. Between 5 and 6 thousand people develop TB in England and Wales each year.
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