4 doctors weighed in:
What percentage test false-positive for tb?
4 doctors weighed in

Dr. Ahmad M Hadied
Orthopedic Surgery
3 doctors agree
In brief: 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.

In brief: 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.
Dr. Ahmad M Hadied
Dr. Ahmad M Hadied
Thank
Get help from a real doctor now
Dr. Aaron Milstone
Board Certified, Internal Medicine - Pulmonology
23 years in practice
1M people helped
Continue
107,000 doctors available
Read more answers from doctors