Greetings, out of disclosure I did post a question on oral sex that was answered by one of the Doctors on here. My encounter was that I received (I'm male) oral sex from female. I tested rapid oralquick at 35 days negative. The counselor that administered the test that if I got a NAAT test at 6 weeks and it came back negative that is conclusive evidence. So my question is, what is the difference between NAAT and DUO? When are those tests conclusive, if they are at all? You guys are great on here, keep up the good work!