Question
What is passive immunity?

Answer

Passive immunity:
Here, readymade antibodies are directly given to the body. It is of two types:
(a) Natural Passive Immunity :
→E.g. Antibodies (IgG) from mother Placenta Foetus
Antibodies (IgA) in colostrum - infants
→(b) Artificial Passive Immunity :
→E.g. Anti-tetanus serum (ATS)

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