Vaccines and Immunoprophylaxis · USMLE Step 1

A 2-month-old infant receives the DTaP vaccine. Which type of vaccine protects against tetanus?

  1. Live attenuated vaccine
  2. Inactivated whole organism
  3. Toxoid vaccine
  4. Conjugate polysaccharide vaccine
Show answer and explanation

Correct answer: Toxoid vaccine

The tetanus vaccine is a toxoid vaccine made from inactivated toxin. It stimulates antibody production against tetanospasmin.

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