GK QUESTION#3638
Consider the following statements:
1. The ELISA test is used for the diagnosis of Typhoid fever.
2. The Widal test is commonly used for the detection of HIV infection (AIDS).
Which of the above statement(s) is/are correct?
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Answer
A. 1 only
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Explanation
Only statement 1 is correct as written. ELISA is a general laboratory method, and typhoid-specific ELISA assays have been investigated and used diagnostically. Widal is a Salmonella antibody-agglutination test, not a test for HIV. A familiar HIV association does not make ELISA exclusive to HIV.