Beth Leivers answered
Stage 3 TB is the 3rd of four stages of tuberculosis. At this stage the body, in most cases, will start to fight against the TB infection with more success; many people who contract TB will not progress past stage 3.
Those who have stage 3 TB are also no longer contagious.
Facts about tuberculosis
- Not all people who contract TB actually get sick, only a small percentage become ill
- TB is a bacterial infection, and it can be vaccinated against
- Tuberculosis is passed through the air from person to person, and primarily affects the respiratory system
- Some of the symptoms of TB include weakness, losing weight, fever or chills, and chest problems
- Whilst many countries use the BCG jab to protect against TB, tuberculosis is still a global problem which many countries do not vaccinate against
- TB is also an issue amongst animals, such as badgers and cattle
Here is a short but informative video about tuberculosis:
You can also read a bit more about TB at the British Lung Foundation website.