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IFA vs. Western Blot

Dec 29, 2008

Hi Robert -

I was looking into the Home Access HIV kit and I believe they perform an ELISA and then the IFA, not the Western Blot. I was wondering if you knew the differences and if it is just better to go to a doctor and get the standard ELISA with confirmatory WB. I fear using the home kit and getting an inaccurate result. Thank you.

Response from Dr. Frascino


IFA (immunofluorescence assays) are as accurate as WBs (Western Blots) when used to confirm a positive ELISA. Your fears are unwarranted. The Home Access HIV test kits are extremely accurate. However, if you would prefer an in-office ELISA and confirmatory WB, that option is certainly available as well.

Dr. Bob

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