Definition of Bacille Calmette Guerin
Bacille Calmette Guerin: An effective immunization against tuberculosis. Commonly abbreviated BCG, it is an attenuated (weakened) version of a bacterium called Mycobacterium bovis which is closely related to Mycobacterium tuberculosis, the agent responsible for tuberculosis.
Camille Guérin (1872-1961) and Albert Calmette (1863-1933) produced the BCG strain of the bacteria at the Pasteur Institute in Paris in 1921. Within a decade BCG was being given in France and many other countries. By 1928, BCG had been given to 116,000 infants in France alone. However, conflicting reports about its effectiveness delayed the use of the BCG vaccine in the United States until 1950.
BCG is also used as an adjuvant to stimulate the immune response and in cancer chemotherapy.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 6/14/2012
Medical Dictionary Definitions A - Z
Search Medical Dictionary
eMedicineHealth Top News
Get the latest treatment options.
Digestive Disorders Resources
Health Solutions From Our Sponsors
Most Popular Topics
Pill Identifier on RxList
- quick, easy,
Find a Local Pharmacy
- including 24 hour, pharmacies