Question

Vaccination protects a person from disease because it:

• A. Helps in better digestion
• B. Increases RBC count
• C. Produces antibodies
• D. Correct body heating system

Answer 1

The correct option is C Produces antibodies

The principle of immunisation or vaccination is based on the property of ‘memory’ of the immune system. In vaccination, a preparation of antigenic proteins of pathogen or inactivated/weakened pathogen (vaccine) are introduced into the body. A vaccine is a biological preparation that provides active acquired immunity for a particular disease. Most vaccines work by inducing B-lymphocytes to produce antibodies.
So, the correct answer is 'produces antibodies'.