Below are a few statements about vaccination.
Select the correct statement/s. Statement A: In vaccination, a preparation of antigenic proteins of pathogens or inactivated/weakened pathogens (vaccine) is introduced into the body.
Statement B: The vaccines generate memory B and T-cells that recognise the pathogens quickly.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Both statements A and B are correct.
In vaccination, a vaccine containing either antigenic proteins of a pathogen or its inactivated/weakened form is introduced into the body to trigger an immune response without causing the disease. This makes Statement A correct. The process stimulates the immune system to produce memory B-cells and T-cells, which “remember” the pathogen and respond quickly if the body is exposed again in the future. Hence, Statement B is also correct. Together, these mechanisms form the basis of immunity developed through vaccination.