Definition
1. Immunization or vaccination is inserting certain attenuated germs or toxins (vaccine) into human body by means of injecting or drinking (dropping into mouth) in order to increase body immunity against the disease.
2. BCG (Bacillus Calmette Guerin) is a vaccination to prevent Tuberculosis/TBC, given to a new born baby or a toddler by injection on the base of the upper arm. BCG injection is given one time.