| Tuberculosis is transmitted by respiratory | | | | like the macrophages detect and ingest the |
| way; an infected person will emit while | | | | infectious particles transporting them to the |
| coughing or sneezing about 2-3 bacterial | | | | lymph nodes where they can be destroyed. In |
| particles. The person in immediate proximity | | | | some cases, the bacterial fragments get to |
| will inhale the particles that will get to | | | | the lymph nodes and multiply causing the |
| the lungs and multiply causing the infection. | | | | ganglion Tuberculosis. |
| | | | |
| Another less common transmission type is | | | | If the bacteria is not destroyed and |
| through the skin in laboratory workers and | | | | annihilated, the infectious the fire box |
| pathologists. They contact Mycobacterium | | | | activates producing the appearance of |
| through skin injuries while handling infected | | | | clinical signs of Tuberculosis. The patient |
| tissues. Cases of Tuberculin infection have | | | | coughs, sweats mostly at night, looses weight |
| been found also in circumcisions made with | | | | and develops fever. In case of an X-ray |
| unsterilised instruments or in people with | | | | investigation opacities of the lungs and |
| tattoos given in unhygienic environments. | | | | fluids collection (Pleurisy) can be |
| | | | discovered. |
| In spite of the high risk of catching the | | | | |
| Tuberculosis bacteria, the actual disease is | | | | If the bacteria are only inhibited, not |
| only developed by 5-10% of the persons with | | | | killed, the immune cells form a wall around |
| primo infection. Healthy immune systems | | | | the inactivated germs producing a so called |
| manage to annihilate the bacterial strains | | | | Granulom. The wall collects amounts of |
| completely. | | | | calcium in time forming the Ghon focus. |
| | | | Usually the tubercles heal and permanent |
| Most cases of actual Tuberculin infection are | | | | scars remain visible on the chest X-rays. The |
| seen in smokers, persons of the lower society | | | | bacteria remain dormant inside the cell wall |
| living in poverty and misery, alcoholics and | | | | until the immune system is weakened by |
| people with depressed immune systems. The | | | | different factors and the bacteria are |
| patients really developing the infection | | | | released. The primer infection can evolve |
| might go through two important stages of the | | | | into a secondary one. |
| disease, the primary and the secondary stage. | | | | |
| | | | The secondary Tuberculosis develops when the |
| The primer stage of Tuberculosis or primo | | | | bacterial fragments multiply and begin to |
| infection doesn't show clinical signs of the | | | | destroy the surrounding tissues inside the |
| disease and the patient is frequently unaware | | | | lungs. The infection might also advance to |
| of his condition. The disease is not | | | | other organs or tissues by sanguine way. |
| contagious in the primer stage and cannot | | | | Other focus and tubercles develop inside the |
| cause further cases of Tuberculosis | | | | lungs and fluid collection can occur between |
| infection. | | | | the linings of the lungs. Patients in |
| | | | secondary stage cough blood and are |
| If the immune system is working, immune cells | | | | contagious for people in the proximity. |