Types of Immunity

Question 1

NATURALLY ACQUIRED - ACTIVE

Answer 1

• Antigens enter the body naturally; body induces antibodies and specialised lymphocytes

Question 2

NATURALLY ACQUIRED - PASSIVE

Answer 2

• Antibodies pass from mother to foetus via placenta or to infant via the mother’s milk.

Question 3

ARTIFICIALLY ACQUIRED - ACTIVE

Answer 3

• Antigens are introduced in vaccines; body produces antibodies and specialised lymphocytes.

Question 4

ARTIFICIALLY ACQUIRED - PASSIVE

Answer 4

• Preformed antibodies in immune serum are introduced by injection.