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A member asked:
What percentage test false-positive for tb?
A doctor has provided 1 answer
TB skin test isn't: Perfect test.A false-positive test may happen if you've been vaccinated with the bacillus calmette-guerin (bcg) vaccine. This tuberculosis vaccine is seldom used in the United States but is widely used in countries with high TB infection rates.
Answered 1/1/2021
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