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Progression to TB Disease
Learning ObjectivesThe learner will be able to discuss the progression of TB from exposure to disease.
H5Content
Content
After exposure to infective droplets containing M.tb, only a small proportion gets infected and further progresses to active TB disease.
- Majority of those that get infected persist in a stage of clinical latency known as TB infection (previously known as Latent TB infection). They do not have TB disease and do not show any symptoms of TB and no evidence of any TB related changes on chest X-ray.
- A small proportion of those with prior infection may progress to active TB disease due to various environmental/ agent/ host factors.
Figure: Flow chart for TB disease progression
Document
Editable-509-Progression to TB disease.pptx
(179.18 KB)
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