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A member asked:
My son became positive in primary koch's infection when he was 3 years old is it possible to be positive again after 2 years through skin test?
A doctor has provided 1 answer
Tuberculin: When tuberculin test (PPD) becomes positive- about 10 mm or more, chest x-ray is done to rule out possible lung infection or lymph nodes. A course of Isoniazid and pyrodoxine is given for 6-9 months. The PPD can remain positive for many years even after treatment.
Answered 11/26/2014
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