Question

The foetus gets immunized after receiving antibodies form mother through placenta. This type of immunization is called ?

• A. Humoral immunity
• B. Passive immunity
• C. Innate immunity
• D. Active immunity

Answer 1

The correct option is B Passive immunity

Maternal passive immunity is a type of naturally acquired passive immunity, and refers to antibody-mediated immunity conveyed to a fetus or infant by its mother.
Active immunity refers to immunity due to the immune system’s response to a microorganism or a vaccine while the passive immunity refers to acquired protection against infection by transfer of antibodies to a susceptible individual.

So, the immunity acquired by new born child from mother's milk is naturally acquired passive immunity.