What is the typical result of the ELISA test during the window period in an AIDS patient?

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ELISA test shows a negative resultWestern Blot test returns a negative resultBoth ELISA and Western Blot tests are negativePCR test yields a negative resultNone of the above

Explanation

During the window period of HIV infection, the ELISA test often produces a negative result because antibodies have not yet reached detectable levels. Similarly, Western Blot may also be negative, but the question specifically focuses on ELISA. PCR, which detects viral RNA, is usually positive during this phase.