Moderate

Confirmatory test for HIV infection is a_______________?

Correct answer: D. Western Blot

  • A. ELISA
  • B. Immunodot
  • C. RIPA
  • D. Western Blot

Explanation

Western blot was the traditional confirmatory test after a reactive HIV screening ELISA because it identifies antibodies against specific HIV proteins. Modern laboratories may use HIV antigen-antibody and differentiation algorithms instead, but Western blot is the expected answer in this classic MCQ.

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