[Question #10192] HIV risk from vaginal intercourse with a man who may have a riskier background

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25 months ago
Hi there.  I have recently been seeing someone who I have talked extensively with about past sex relationships before having sex.  He said he has not had a lot of partners and is apparently straight and never injected drugs.  I also am a blood donor so asked those questions directly, after now having unprotected sex once, and he got angry and has ended things so I am thinking perhaps he did use injectable drugs years ago or had been with a man.  Not sure but just from the response, it has made me feel a little uneasy.  I know he has not been involved with anyone or anything for at least 1.5 years, including women, so if he were infected, he would not be in an acute phase.  

I have not been on this site in years but it has always helped allay my fears.  I know this is probably a common questions but it is hard to go through all the questions and find what I am looking for.  

I am just wondering if I should stop blood donations, relationships with others, etc. over my fear or just be more relaxed as statistically my chances are low?

Thanks,
C.C.  
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25 months ago
I forgot to mention I am a 48 year old woman in Canada.  
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Edward W. Hook M.D.
25 months ago
Welcome back to our forum and thank you for your kind words. I am pleased that our forum has been helpful to you in the past and hope that we will be able to do so again on this occasion.

While I appreciate your caution and concern, i think that the problem here is more likely to be with your partner than with you. That he took offense from your direct questions is his problem not yours. While I realize that you cannot be entirely confident about his infection status, but based on what you say, it is unlikely that he has untreated HIV (persons on effective treatment for HIV, or not infectious to sex partners) and even if he did, there is little chance of infection.  Further, in the most unlikely circumstance that he did have HIV, your risk of infection from a single unprotected encounter is less than one infection in 1000 vaginal intercourse in other words if he were infected which is unlikely chances are 99.9% that you would not become infected through your exposure to him. 

Can you be 100% sure? No, however the odds are very much in your favor.  Personally, I would not be concerned in the least. If you are concerned however , out of an abundance of caution, my advice would be to hold up on donations for a month or six weeks and test. At 4 weeks a standard HIV test would detect well over 99% of recent infections and at 6 weeks test results would be entirely conclusive.

 I hope this perspective is helpful to you. If any part of my reasoning is unclear, or you have additional questions, please don’t hesitate to use your follow ups for clarification. EWH. 
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25 months ago
Thanks so much Dr. Hook.  I appreciate it.  Cheers.  
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24 months ago
One thing I should mention as I had forgotten about it.  I was dry and noticed after that I had a bit of tearing.  As you say it is unlikely he has HIV but if he did, would that up the risk much? Thanks.  

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Edward W. Hook M.D.
24 months ago
There are no data to suggest that increased friction due to vaginal dryness, or even minor tearing increases risk, if exposed.   I'll remind you in addition, odds are that you were not exposed.  EWH---
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24 months ago
Thanks again.  :)