Tuberculosis (abbreviated as TB for tubercle bacillus or Tuberculosis) is a general and deadly infectious disease caused by mycobacteria, mainly Mycobacterium tuberculosis. Tuberculosis most normally attacks the lungs (as pulmonary TB) but can also affect the central nervous system, the lymphatic system, the circulatory system, the genitourinary system, bones, joints and even the skin. Other mycobacteria such as Mycobacterium bovis, Mycobacterium africanum, Mycobacterium canetti, and Mycobacterium microti can also cause tuberculosis, but these species do not generally infect healthy adults.
One third of the world's current population has been affectde by TB, and new infections occur at a rate of one per second. Not everybody infected develops the full-blown disease; asymptomatic, latent infection is most common. But, one in ten latent infections will progress to active disease, which, if left untreated, kills more than half of its victims
One third of the world's current population has been affectde by TB, and new infections occur at a rate of one per second. Not everybody infected develops the full-blown disease; asymptomatic, latent infection is most common. But, one in ten latent infections will progress to active disease, which, if left untreated, kills more than half of its victims
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