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Tuberculosis (TB) is a serious illness that mainly affects the lungs. The germs that cause tuberculosis are a type of bacteria.
Tuberculosis can spread when a person with the illness coughs, sneezes or sings. This can put tiny droplets with the germs into the air. Another person can then breathe in the droplets, and the germs enter the lungs.
Tuberculosis spreads easily where people gather in crowds or where people live in crowded conditions. People with HIV/A...

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When TB germs survive and multiply in the lungs, it is called a TB infection. A TB infection may be in one of three stages. Symptoms are different in each stage.
Primary TB infection. The first stage is called the primary infection. Immune system cells find and capture the germs. The immune system may completely destroy the germs. But some captured germs may still survive and multiply.
Most people don't have symptoms during a primary infection. Some people may get flu-like symptoms, such as:...

Tuberculosis is caused by a bacterium called Mycobacterium tuberculosis.
People with active TB disease in the lungs or voice box can spread the disease. They release tiny droplets that carry the bacteria through the air. This can happen when they're speaking, singing, laughing, coughing or sneezing. A person can get an infection after inhaling the droplets.
The disease is more likely to spread when people spend a lot of time together in an indoor space. So the disease spread...

If you have a latent TB infection, your health care provider may begin drug treatments. This is especially true for people with HIV/AIDS or other factors that increase the risk of active TB disease. Most latent TB infections are treated for three or four months.
Active TB disease may be treated for four, six or nine months. Specialists in TB treatment will determine which drugs are best for you.
You will have regular appointments to see if you're improvi...

If you test positive for latent TB infection, you may need to take drugs to prevent active TB disease. Preventing the spread of disease If you have active TB disease, you'll need to take steps to prevent other people from getting an infection. You will take drugs for four, six or nine months. Take all of the drugs as directed during the entire time.
During the first 2 to 3 weeks, you will be able to pass TB bacteria to others. Protect others with these steps:
- Stay home. Don't go to work or school....

For informational purposes only and not a substitute for professional medical advice, diagnosis, or treatment.