Immune System

Question 1

Explain how a foetus is protected against the pathogens that infect its mother during pregnancy

Answer 1

Antibodies from mother are complementary
To pathogens/ antigens crossing the placenta
Giving passive immunity in foetus or stopping symptoms from forming in foetus

Question 2

Multiple vaccines

Answer 2

Production of more memory cells
So higher concentration of antibodies in the blood
Or more rapid production of antibodies on further infection