3 doctors weighed in:

Can a TB skin test be positive if person had TB in the past?

3 doctors weighed in
Dr. Jay Park
Pediatrics
1 doctor agrees

In brief: Yes

Exception will be the ones who had a latent TB and received a prophylactic inh treatment for 9 months.
Their reaction to tuberculin test can become negative.

In brief: Yes

Exception will be the ones who had a latent TB and received a prophylactic inh treatment for 9 months.
Their reaction to tuberculin test can become negative.
Thank
Dr. Alfredo Garcia
Pediatrics

In brief: Tuberculin test

Yes. If you were exposed to TB but do not develop the disease, you can also test positive.

In brief: Tuberculin test

Yes. If you were exposed to TB but do not develop the disease, you can also test positive.
Thank
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