Vaccines · Pharmacology

Which of the following best describes passive immunization?

  1. Administration of antigen to stimulate immune response
  2. Transfer of preformed antibodies to an individual
  3. Stimulation of memory B cells
  4. Long-term immune protection after infection
Show answer and explanation

Correct answer: Transfer of preformed antibodies to an individual

Passive immunization involves administering preformed antibodies, such as immunoglobulins. It provides immediate but temporary protection. Unlike active immunization, it does not generate immunological memory.

Difficulty: Medium Question 18 of 25

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