Vaccines and Immunoprophylaxis · USMLE Step 1

A patient traveling to an area with yellow fever receives the yellow fever vaccine. Which type of vaccine is this?

  1. Live attenuated
  2. Inactivated
  3. Subunit
  4. Toxoid
Show answer and explanation

Correct answer: Live attenuated

The yellow fever vaccine is a live attenuated virus vaccine. It generates strong, long-lasting immunity.

Difficulty: Medium Question 2 of 20

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