Immunisation refers to the body's ability to develop an immunological response, either naturally or through vaccination.
Immunity or resistance to a certain sickness can be developed using such methods.
It is the process of making a person resistant to a specific illness through the injection of a vaccination.
This would ensure that any later contact with the infectious bacteria did not result in disease.
Tetanus, diphtheria, whooping cough, measles, polio, and other diseases can be prevented by immunisation.
The basic principles of immunisation are that after receiving a vaccine, the body begins to create antibodies against it, protecting the person from sickness.