PCR is not normally recommended at all in people who are worried about new HIV infections, except when the risk is especially high, such as sex with a known HIV infected partner or anonymous, unprotected anal sex among men. In other settings, it carries too much risk of a false positive result. In any case, if the test is going to be used in that manner, there are no precise data on the best timing. 2-4 weeks probably makea sense in most cases.
All the current antibody tests, rapid or lab-based, have the same time frames for detecting new infections.
That will have to be my last comment on this thread.
Directly to your questions:
2) This question first because it is the most important. The negative test results prove without doubt you did not catch HIV. Testing is infinitely more reliable than trying to judge the transmission risk. Because of the negative test, your question about transmission risk is irrelevant.
1) If an infected man ejaculates in a woman's vagina, it is logical to assume her risk of catching HIV is higher than if there is no ejaculation. But there is no reason to suppose it makes any difference for female to male transmisison. Same for female orgasm; it makes no difference. But as I said above, this question doesn't matter, since the tests show you weren't infection, no matter how high the risk was.
3) No infection, hep C or any other, has any effect on HIV test reliability.
4) No further testing is needed. You're home free. Don't worry about it.
Best regards-- HHH, MD
Hepatitis C is not normally classified as an STD. It probably is sexually transmitted sometimes, but very inefficiently, and primarily through anal sex among men who have sex with men. There is no evidence for heterosexual transmission.
Thank you so much for the reply. One more question about the testing methods-I've looked around various sources and many (such as yourself) state a shorter, six week window period as opposed to a three-month window as a reliable indicator for HIV status for people without major health issues. Well, the laboratories that do PCR testing recommend 28 days but would you say the full 28 days is absolutely necessary or, as is the case with people without health issues outside the norm concerning antibody testing, could that window possibly be shortened and still be just as conclusive?
And to add on to that I'm assuming that since the guidelines for the OraQuick rapid tests and the ELISA tests are the same that they have similar, if not the same accuracy-would I be correct in assuming this?
Sorry for the last minute overload I'm just very curious. And thank you again for answering my questions it really feels great to be "home free" as you said it!
Although from what I understand Hepatitis C is very difficult to spread through sexual contact...?