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Passive immunization includes:

Option: 1

Introduction of antibodies directly


Option: 2

Transfer of maternal antibodies across placenta


Option: 3

Transfer of lymphocytes directly


Option: 4

All of these


Answers (1)

best_answer

 

 

As discussed in Vaccination & Immunisation -

 

Passive immunization is practiced in such cases where prepared antibodies, antitoxins and antivenoms are injected to the patients. Ex. Tetanus, Snake bite.

Hence, the correct answer is option d
 

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