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Positive mantoux talk about your immune status to Mycobacterium
TB.For all clinical purposes we consider Mantoux positive as present or previous infection.
However now a days advanced methods like IgM TB , pcr are available to specifically confirm TB.Apart from all the tests , the symptom presentation is the most important and deciding criteria. I advise you to visit your Physician and request for these tests .
If you can elaborate your symptoms , I would be able to help you better. You can provide these details as comment to this reply or feel free to mail me.