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