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What are the positive benefits of the BCG vaccine against tuberculosis?
1 doctor weighed in

Dr. Jay Park
Pediatrics
In brief: Active TB prevention
The major role of BCG vaccine is TB prevention.
Bcg vaccine is also effective for protection against leprosy and disease due to nontuberculous mycobacteria. The efficacy of bcg-protection against active tb- is about 50%, and the duration of protection is believed to be 10 to 15 years.

In brief: Active TB prevention
The major role of BCG vaccine is TB prevention.
Bcg vaccine is also effective for protection against leprosy and disease due to nontuberculous mycobacteria. The efficacy of bcg-protection against active tb- is about 50%, and the duration of protection is believed to be 10 to 15 years.
Dr. Jay Park
Dr. Jay Park
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