Hello doctor, It's been year now since protected vaginal sex with Prostitute(stupid me). as I wrote in my earlier post..My elisa keeps coming positive but western blot is negative. 1. did u ever had patient with positive elisa and negative western not turned out to be Hiv positive? 2. what do you think is cross reacting with elisa test? 3.if i am indeed negative why do i feel like having mild fever? 4. I have been having knee pain for last three year and it look like swollen bit..do you think it would cause me to have mild fever..thanks Please reply I have already donated. I did not donate as bribe. I always donated for whatever good cause..thanks....awaiting for your reply...

Hi,

A positive ELISA plus negative confirmatory Western Blot is considered a negative HIV-screening test!

1. No.

2. I have no way of knowing over the Internet. Besides, it doesn't matter, as you are not HIV infected.

3. Anxiety, most likely.

4. I have no way of knowing over the Internet. Have your general medical doctor check it out.

Thanks for your support of The Robert James Frascino AIDS Foundation (www.concertedeffort.org). It's very much appreciated. Stop worrying about a disease you do not have. You can read much more about the HIV diagnostic tests (including their limitations, false positives and indeterminate results) in the archives of this forum. We have an entire chapter devoted to HIV tests!

Be well.

Dr. Bob