[Question #4517] Testing window

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81 months ago
I had a brief one time  sexual encounter with a man of unknown status. He claims he is “OCD about his body” and 100% clean but has quite a reputation.  Penetration was very brief only 1-2 seconds and I insisted we stop due to no protection.  Later that evening I noticed a very small amount of blood so I am concerned I had a minor cut in the vaginal canal.   My regular partner became ill with strep about 6 weeks later and he responded to antibiotics once given. I became ill with a sinus infection which turned into bronchitis and made my asthma worse. This started around 7 weeks post exposure and lasted for about 7 weeks until it cleared. I tested with alere dertermine combo at 8weeks 6 days (63 days total) past exposure. The result was negative. The clinician stated I needed to re test at 6 months. Was my test conclusive?  I am concerned about my partner’s illness and my sinus infection/bronchitis, could these have anything to do with acute hiv?  I wasn’t even concerned about hiv until my partner came down with an illness. How accurate is this test at 9 weeks past exposure?  Can very brief penetration without ejaculation cause hiv infection if this man was infected? 
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Edward W. Hook M.D.
81 months ago
Welcome to the Forum.  I'll be glad to comment.  Your test results from the Alere Determine performed 63 weeks after your exposure is entirely reliable. there is no need for further testing, these results are conclusive.  Combination HIV antigen/antibody tests such as the Determine provide conclusive results at any time more than 6 weeks (42 days) after exposure.  It is natural to associate coincidental illnesses such as illnesses such as your bronchitis and your partner's illness with an exposure that  you are concerned about.  I urge you to do your best to put these concerns behind you.

I hope that my comments will help you to move forward.  EWH
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81 months ago
Thank you very much for your reply. I tested at 63 days not 63 weeks as stated in your reply. Can I assume my results are still conclusive as you stated 42 days is conclusive?  As a follow up question: is it possible to transmit hiv with brief penetration and no ejaculation?  
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Edward W. Hook M.D.
81 months ago
 I apologize. I was typing too fast. Your results at 63 days are certainly conclusive. 

HIV  transmission becomes more likely as the amount of virus that a person is exposed to increases.    There is HIV present in  pre-ejaculate fluid  so it is conceivable that the infection could be transmitted without ejaculation. On the other hand, it is also less likely from a statistical perspective.   Please remember however that most people do not have HIV and even if a person is exposed to a sexual partner who has HIV the risk for infection is only about one infection in every 1200 exposures 

 Please don't worry. EWH 
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