Anonymous
Hi, I received 2 second unprotected fellatio, 2 second condoms protected fellatio, and then, I had about 12 second condoms protected anal sex with a female sex worker from Mongolia (people in Mongolia has high rate of HCV) at 3.5 months ago. After 3 months of that event I gave a test for HIV 1&2 (4th generation ELISA), antibody Hep C test, and other STIs. The results came negative. Could you please kindly let me know if I still should retest for HCV and HIV after 6 months of exposure. I read in CDC guidelines that 97% of people develop Hep C antibody after 6 months, is this true and valid? Some others say an antibody test after 15-16 weeks is conclusive for Hep C?

What test I can give now to 100% make sure about Hep C?

Thank you very much
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Anonymous
Hello,

Thank you for contacting the AIDS Vancouver Helpline as your source for HIV/AIDS related information. I would be happy to answer your questions regarding HIV. However, please know that we are an HIV/AIDS specific helpline and therefore, have limited knowledge regarding Hep C. For information on [Hep C](http://www.catie.ca/en/hepatitis-c), please refer to the website link provided.

First, I am glad to hear that you have taken the initiative for your health and well being by getting yourself tested. HIV testing is the only way to know if you have HIV. Good job! With that said, all HIV tests are considered conclusive at 12 weeks or 3 months after the last high risk exposure. Since your HIV test was at 3 months after the exposure and if you have not had any other sexual encounters between that time, your tests are conclusive and you are HIV negative.

With regards to testing for HIV at 6 months, know that you do not need testing at 6 months unless you meet any of these 4 criteria:

1. if you are currently receiving antiviral treatment for Hep C
2. if you are currently receiving treatment for cancer
3. if you have received Post Exposure Prophylaxis (PEP) medication
4. if you have an underlying immunodeficiency

If you do not meet any of these, then your test at 3 months is considered conclusive and you do not need any more testing.

To help you further your HIV information, know that receiving unprotected or protected fellatio is considered a negligible risk. This means that while there is a risk due to the exchange of body fluids, there have never been any confirmed reports of infection occurring in this manner. On the other hand, protected anal sex, no matter how long or short the intercourse was, is considered a low risk. In this case, the use of a condom went a long way towards protecting you as it provides a barrier, preventing direct access for fluids to enter your blood stream. If you hadn't used a condom, your risk would be high for contracting HIV, Hep C and other STI's. Good job on using the condom! For the future, if you would like to know your HIV risk, you may refer to our [HIV risk assessment chart](http://helpline.aidsvancouver.org/question/risk-assessment-chart).

I hope I have answered your HIV related questions. Please feel free to contact us if you have any more questions or refer to the links provided for more information.

Best wishes,

Mary

Helpline Volunteer
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