Signs of Tuberculosis

Signs of tuberculosis - Tuberculosis is one of the most common infections worldwide. About 2 billion people are infected with tuberculosis, and the disease kills nearly 3 million people each year worldwide. In Canada, there are approximately 1,600 new cases each year.

The bacterium that causes TB is called Mycobacterium tuberculosis . A person can be infected without showing any symptoms of active disease – this is called latent disease .
For a person with a healthy immune system, there is a risk of 10% over the life of TB bacteria is reactivated and thereby causes the symptoms of active disease. If the immune system has been weakened by HIV (human immunodeficiency virus) or another disease, the risk of moving from a latent to active symptomatic disease increases by 10% per year.
Infants, children in care and the elderly are also at increased risk because their immune system is weaker.
There are no symptoms associated with a latent TB infection. This means that a person may have caught the TB bacteria and show no signs or symptoms of infection. Symptoms appear only if the infection becomes active.
Symptoms develop gradually and it may take weeks before you realize that something is wrong and he should consult a doctor. Although the TB bacteria can infect all organs of the body (eg. Kidneys, lymph nodes, bones, joints), the disease usually attacks the lungs.
Common symptoms are:

  • chest pain;
  • shortness of breath;
  • fatigue;
  • fever;
  • chills;
  • loss of appetite;
  • weight loss;
  • night sweats;

a persistent cough for more than two weeks and producing green phlegm, yellow or bloody.
The other symptoms depends on where the disease has spread beyond the chest and lungs. example if it spreads to the lymph nodes, it can cause swollen lymph nodes on the sides the neck or under the arms. If the disease spreads to the bones and joints, it can cause pain or swelling of the knees or hips. Genitourinary TB can cause pain in the flank, associated with frequent urination, pain or discomfort during urination and blood in the urine.

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