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Details on the ELISA test antigens

Jun 28, 2002


Just looking for a little clarification. From what we understand, the Western Blot tests antibodies found in your blood against HIV characteristic viral proteins in order to confirm an ELISA test.

We realise that ELISA tests for the presence of antibodies as well, but that the test is non-specific (i.e. there is the possibility of false positives -- a positive test result not due to HIV).

The crux of our question is just what type of antigen is the ELISA test using compared to those viral protein antigens used in the Western Blot.

Thank you for your help.

Response from Dr. Holodniy

It depends on the assay type.

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