What is BCG?

BCG (Bacille Calmette-Guérin) is a vaccine for TB that is given in many countries. In Canada, it is only given to a small group of high risk people. BCG does not provide very much protection from TB disease.

Tuberculosis (TB)

Tuberculosis (TB) is a disease caused by bacteria called mycobacterium tuberculosis. The bacteria enter the body through air you breathe and causes an infection, usually in the lungs. Sometimes infections can happen in other parts of the body.