The principle of vaccination is to produce immunity against a disease. Explain.

1. Vaccination is artificially introducing germs or its substances in the body in order to develop resistance to a particular disease.
2. This practice is scientifically referred to as prophylaxis and the material being introduced into the body is called the vaccine.
3. The vaccine or germ substance is introduced into the body usually by injection or orally sometimes.
4. Inside the body, the vaccine stimulates lymphocytes to produce antibodies against the germs for that particular disease.
5. Antibodies are an integral part of our immunity. Their function is to destroy the unwanted particles which enter the body.
6. Vaccines give our immunity a signal to synthesize particular antibodies therefore the principal of vaccination is to provide immunity against a disease.