Anonymous
I am having a unprotected oral sex with CSW and tested negative with HIV 1/2 & P24 Combo Test (CMIA) at 12.2 weeks i.e after 85 days of my possible HIV exposer. Is it conclusive or should I re test after 90 days. 
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helpline-volunteer

Hello,


Thank you for your inquiry. From what we gather from the question, you were asking about the accuracy of a negative result from a HIV 1/2 & P24 combo test (DUO) accessed 85 days after receiving unprotected oral sex. From the information given, this scenario is determined to be Negligible Risk (there is no evidence or no documented cases of transmission. However, there is a theoretical possibility of transmission under certain extenuating circumstances).

The scenario mentioned above does not meet the three components of the transmission equation. It does not satisfy the equation because saliva, unless mixed with considerable amounts of blood, is not a bodily fluid that could carry the HIV virus. Thus, it is extremely unlikely that transmission of HIV would occur while receiving oral sex.
 
Helpline Transmission Equation .jpg
The HIV test you accessed is a 4th generation test that can detect both the HIV virus itself as well as antibodies that your body would produce if you were exposed to and acquired HIV. Most HIV specialists agree that 4th generation tests are considered conclusive 6 weeks post-exposure. Some guidelines and physicians recommend re-testing 3 months post-exposure for completely conclusive results. Since your exposure has been determined as negligible risk, no further testing is required.

Recommendation: There are no evidence or no documented cases of transmission. Refer to a healthcare professional for more personalized answers.

Regards,

AIDS Vancouver Helpline/Online, Marie
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