How do I know if I have TB infection?
A skin test is the only way to tell if you have TB infection. The test is positive if a bump about the size of a pencil eraser or bigger appears on your arm. This bump means you probably have TB infection. If you have TB infection (a positive skin test reaction) you need to take medicine to keep from developing TB disease. This calls treatment for TB infection and usually lasts from four to nine months.

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1. What is TB or Tuberculosis?
2. How is tuberculosis spread?
3. What are the symptoms of tuberculosis disease?
4. What is the difference between TB infection and TB disease?
5. How do I know if I have TB infection?
6. Can TB disease be cured?
7. How is TB disease treated?