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assessment of risk

Question: 

Hi,

I went to strip club recently and stripper opened up my penis and inserted into her vagina. how ever I did not feel penetration as I did not feel it went into vagina fully( may be she tricked me because I was drunk) she danced like that about 1-2 minutes and I did not feel vaginal fluids at all after I started masturbating and ejaculated outside. It was not like a proper sex with penetration as I did not feel a thing. How ever I took PEP for 28 days with just Truvada. So my questions are ,

1. What are the chances of risk without PEP and with PEP?
2. How effective is Truvada alone for PEP?
3. How soon I can test since I am done with PEP to get conclusive early as possible?
4. Chances of getting HIV even if penis goes half the way into vagina?

Please help as I am extremely worried.

Answer: 

Hi there, and thanks a lot for contacting the AIDS Vancouver Helpline for your HIV/AIDS related health information. It seems you're concerned about the possibility of HIV transmitting during an encounter. We're happy to answer your question for you.

We're a bit confused at the wording of your question. You state that she took your penis and inserted it into her vagina, but then you state that you did not feel that penetration had occurred. If she inserted your penis into her vagina without a condom, this would be considered a high risk activity (no matter how far it was inserted), meaning that of the transmissions that have occurred, most have occurred during activities such as these. If she simply made contact with your penis with her vagina, this is a no risk activity. To see the risk levels of various activities, we encourage you to check out our risk assessment page.

Here is more information on PEP from one of our favourite resources at CATIE. The link cites observational studies that concluded that PEP may reduce the likelihood of transmission by 80-90%. The results were more conclusive in studies in monkeys. Truvada is a combination antiretroviral (so it includes multiple antiretrovirals in a single pill) that is as effective as other options.

As for when you should go for testing, know that PEP extends the window period of tests for as long as you take it. So while window periods for most tests are typically 3 months, a 1 month PEP regimen extends the window period of tests to 4 months.

Thanks a lot for contacting the AIDS Vancouver Helpline with your question, we hope it has been answered fully.

Trevor

AIDS Vancouver Helpline/Online
helpline.aidsvancouver.org