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HIV AG/Ab Test looking for P24+Ab 22 days post-exposure

Helo dear Dr.,


First of all, I want you to excuse my English skills, but I am not a native speaker. I have a question regarding my risky behavior. I had an unprotected vaginal sex with a girl, actually not just one, I had some (4 or 5 times in a past), then I was tested after 11 weeks from the last intercourse with INSTI negative and also 6 week after with ELISA - negative. But some days after those tests I get drunk on some party and had another intercourse with her. Then 22 days post exposure negative HIV Ag/Ab. My question is : Are the tests using chemiluniscence detection of HIV Ag/AB 22 days post exposure somehow reliable ? I am just verry worried, still searching for some symptoms on internet, then checking my body thousand times a day ...

Sorry  for bothering you all with this question ...
Have a nice day.
4 Responses
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239123 tn?1267647614
MEDICAL PROFESSIONAL
Welcome to the forum.  Thanks for your question and for your confidence in our services.  There's no need to apologize for a question like this.  That's why we are here!

It is statistically unlikely your parnter(s) had HIV; and when a woman is infected, the average transmission risk for each episode of unprotected vaginal sex is around once for every 1,000 - 2,000 exposures.  So it is statistically very unlikely you caught HIV.

And your test results at 6 and 11 weeks, taken together, show you were not infected during the earlier exposures.  For the most recent exposure, your negative combo test at 22 days probably is around 90% reliable.  Another test of the same kind at 4 weeks would be conclusive.

Alternatively, since it seems you could easily contact your partner, why not speak with her and ask her to be tested?  You may find she is just as concerned about these unprotected exposures as you are.  After all, women are at higher HIV risk from their male partners then men are from their female partners.  If she has a negative test at this time, you would know for sure you were not exposed and could not have HIV.  In any case, stay relaxed until all testing is done.  You are at low risk for HIV and can expect negative test results.

However, I would point out that you and your partner appear to be at pretty high risk for STDs -- i.e. you both have unprotected sex with casual partners.  In addition to HIV, I recommend that you both be tested for gonorrhea, chlamydia, and syphilis.  There'a a much higher chance of these STDs (especaily G and C) than for HIV infection.

I hope this has helped.  Best wishes--  HHH, MD
Helpful - 2
Avatar universal
Dear Dr.,

Thanks for the answer, just to explain more. Those girl was my only one sexual contact in last six months. I am pretty sure, that she also did not have contacts (i know that you can never be sure). Anyway you made me little bit calm and I will for sure retest at 4 weeks. First of all I have to stop searching symptoms on internet. Have a nice day.
Helpful - 0
239123 tn?1267647614
MEDICAL PROFESSIONAL
Understood.  See above.
Helpful - 0
Avatar universal
I mean, i had sex with just one girl, but several times. Now when i read the question it looks like i had sex with several girls, so just to explain .. :-)
Helpful - 0

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