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western blot after 10 weeks

Question: 

sir i had a protected sex with lady prostitute . during sex she has used coconut oil as a lubricant .I was not getting why she is doing so after sex i have checked condom it was not broken . after some weeks molluscum contagiousm devloped in my genital area . i visited skin specilist he suggested to test for HIV 1 & HIV 2 also vdrl after 6 weeks of possible exposure . then for confirmation i did western blot test that test also come negative after 10 weeks
1) Is western blot is is conclusive after 10 weeks
2) even though there is no condom broken am i risk of getting HIV ?
3) can use of coconut oil weak the condom that can pass HIV virus .

Answer: 

Hi there, and thanks a lot for contacting the AIDS Vancouver Helpline for your HIV/AIDS related sexual health information.

You seem concerned about the possibility of HIV transmitting during an encounter considering the type of personal lubricant used, as well as about the accuracy of a test you've had since then. We'd be happy to answer your question for you.

We would actually consider this a high risk encounter, considering coconut oil was used as a lubricant. Using coconut oil results in the condom being much more likely to fail. This also does not mean HIV transmitted in this encounter, just that of transmissions that have occurred, most have occurred through activities such as these. We encourage you to check out the information SmartSex has provided on personal lubricants. For latex condoms, only water-based personal lubricants should be used.

As for the western blot test you've had, here is a bit more information on it:

Test Name
Method
Window Period
Conditions
Western Blot Immunoblot which detects HIV antibodies directed against specific HIV proteins. Interpreted according to Canadian consensus guidelines. 4-6 weeks, may take up to 8 weeks for a positive result Standard test protocol, as confirmatory test. Considered to be "gold standard" for confirmation of HIV infection. If test results are indeterminate, PCR NAAT Tests are usually performed to confirm an infection. Conclusive at 4-6 weeks

So you'll see in the chart that Western Blots are indeed conclusive at 4-6 weeks, so your results at 10 weeks can be taken as accurate (should you not have had any exposures after that one).

Thanks a lot for contacting the AIDS Vancouver Helpline with your questions, we hope they have been answered fully.

Trevor

AIDS Vancouver Helpline/Online
helpline.aidsvancouver.org