what is a immunization
Immunization is the process whereby a person is made immune or resistant to an infectious disease, typically by the administration of a vaccine.Vaccines stimulate the bodyâs own immune system to protect the person against subsequent infection or disease.Immunization is a proven tool for controlling and eliminating life-threatening infectious diseases and is estimated to avert between 2 and 3 million deaths each year.accines stimulate the bodyâs own immune system to protect the person against subsequent infection or disease. Immunization is a proven tool for controlling and eliminating life-threatening infectious diseases and is estimated to avert between 2 and 3 million deaths each year.