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14 Apr 2014
In spite of advances in treatments available, tuberculosis (TB) remains a global pandemic. One-third of the human population is currently infected with TB. What is TB? TB disease caused by bacteria of tuberculosis bacteria
Tuberculosis can affect any part of the body but usually affects the lungs. Tuberculosis is spread by airborne droplets that occur when an infected person sneezes, talks, or cough.

However, it should happen prolonged exposure to an infected person before you may become infected. Body may harbor bacteria while the immune system to prevent disease. For this reason, there are two forms of TB: latent TB and active TB.

With latent TB, the immune system is able to prevent bacteria from growing. TB bacteria to survive within the body, but is not active at this time. However, the bacteria can become active later in life. Latent TB patients have no symptoms and do not feel sick, but not contagious, have developed tuberculosis later in life if you do not receive treatment.
Active TB simply means that the TB bacteria to grow inside the body causing active infection.

Signs and symptoms of active TB disease include fatigue, slight fever, chills, night sweats, loss of appetite, weight loss, unintended, and a cough that lasts three weeks or more sputum production or discolored blood, and pain with cough or breathing.

 Active TB is highly contagious. What is causing the tuberculosis epidemic? The programs have helped improve public health to create a steady decline of TB cases in the United States. However, far from solving the problem
Factors that contribute to the spread of tuberculosis in the United States and elsewhere, including the increase in the number of foreign-born, and crowded living conditions, an increase in drug-resistant strains of tuberculosis, and lack of access to medical care, and an increase in poverty.
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Conditions poorly ventilated and crowded help the spread of tuberculosis. This is one of the causes of TB cases has reached epidemic levels.

 Although the TB cases in the United States is declining, increasing incidence in other parts of the world. Half of the cases reported in the United States (in 2000) occurred in individuals who were born outside the United States. Individuals living in poverty, and the transfer or migrate often usually not completed TB treatment. This leads to forms of TB drug resistance


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