Anonymous
Hi! I had vaginal sex in Thailand with a normal local female. I remember I used a condom but because I was pretty drunk I'm not 100% sure that it was not broken or that it didn't slip away during the act. From the third week until now (8.5 weeks) I have had a flat red rash sometimes in my chest and today on my arms. It comes and lasts for a few hours to 1 day and then it goes away. I also have swollen lymph nodes and some infection in my mouth. I did an HIV ag/ab test at 34 days after possible infection and also the rapid antibody test at 8 weeks (both negative). So my question is how accurate are these tests if I used both in those days.

Thank you for the answer! You have a great forum!!( and I hope you understand my english).
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Anonymous
Hi and thank you for contacting AIDS Vancouver with your question!

It sounds like you're unsure about how accurate the tests you took are.

To begin with, when using a condom, having vaginal sex is considered Low Risk. This means that there have been only a few reports of infection which happen only under certain circumstances (ex. condom breaking or slipping). If you're unsure about whether or not the condom broke or slipped the only way to be certain is to take a test.

Second, the antigen test (ag) and antibody (ab) tests you took at 34 days after are considered by many HIV specialists to be conclusive at 42 days. However, we at AIDS Vancouver follow specific guidelines stating that tests should be taken again at 3 months to be considered conclusive. You can take a look at your local guidelines to see what is recommended. But just to give you an idea of how sure you can be about the results, after 4-6 weeks the ag test is 99.9% accurate. As well, the rapid antibody test that you took is conclusive at 3 months, but 95% of infections are detectable within 4-6 weeks. So, you can be quite confident about your results from those tests taken at those times. But if you're still feeling unsure, though probably not necessary, you could take another test to ease your mind.

If you would like any other information about HIV you can always check out our website:< http://www.aidsvancouver.org>. And if you're living in the Greater Vancouver area you can always call our free and anonymous helpline at 604-253-0566, Monday - Friday, from 10am - 4pm.

Again, thank you for contacting AIDS Vancouver and we hope we answered your question.

Sabina Bast - Volunteer
AIDS Vancouver Helpline/Online
Monday - Friday 10am - 4pm (PST)
604-253-0566
Private and Confidential

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