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Question
A confirmatory test used for detecting HIV infection is _________.
Options
ELISA
Western blot
Widal test
Eastern blot
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Solution
A confirmatory test used for detecting HIV infection is Western blot.
Explanation:
ELISA (enzyme-linked immunosorbent assay) is used to detect HIV infection. ELISA is the preliminary test in the diagnosis of AIDS. If the ELISA test is positive, the Western blot test is usually administered to confirm the diagnosis.
Therefore, while ELISA is an effective initial test, Western blot is used to confirm HIV infection due to its higher specificity.
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