Vaccines,Antigens,Antibodies 2

Question 1

4.

Answer 1

If enough people are vaccinated in this way the population can achieve ‘herd immunity’

Question 2

5.

Answer 2

Antibodies bind to antigens on the live pathogen and quickly destroy it.

Question 3

6.

Answer 3

If the live pathogen then attacks the body, the memory cells produce the correct antibodies