Vaccines · Pharmacology

Booster doses of vaccines are primarily given to:

  1. Prevent allergic reactions
  2. Enhance the secondary immune response
  3. Induce passive immunity
  4. Eliminate the need for primary immunization
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Correct answer: Enhance the secondary immune response

Booster doses restimulate memory B and T cells, producing a stronger and more sustained immune response. This is known as the secondary immune response. It increases antibody titers and duration of protection.

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