- During this process the body begins to send more cells to assist in the clean up process
- Monocytes are attracted to the site but do not have the ability to kill the bacilli
- The infected macrophage may be transported throughout the body through the lymphatic system
- The areas that attract the macrophage with the bacilli are areas of high oxygen concentration, such as kidneys, bones, brain and apical portion of the lungs
- This spread is usually asymptomatic but produces metastatic foci throughout the body which may become active at a later date
- Most patients are able to produce an effective immune response
- T lymphocytes are activated and are able to control the infection with in 2-10 weeks
- The lymphocyte activation causes the patient to have a positive tuberculin skin test[5]
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