what is procedure bcg
BCG: An effective immunization against tuberculosis. BCG stands for Bacille Calmette Guerin. BCG is a weakened (attenuated) version of a bacteria called Mycobacterium bovis which is closely related to Mycobacterium tuberculosis, the agent responsible for tuberculosis. Camille Guerin (1872-1961) and Albert Calmette (1863-1933) produced the BCG strain of the bacteria at the Pasteur Institute in Paris in 1921.