At a routine exam I asked for STD testing, including HSV. I'm pretty low risk , I just think it's the responsible thing for a sexually active adult to do. The last time I had sex was almost exactly 2 months prior to taking the test.
I was shocked by the result. The test was done abroad, and the results sent by email. This is all it says:
Method/Specimen: IFA/serum
Test: HSV Ab. (Type I&II), IgG
Result: 1.256
Reference range: >1.1
In black and white terms, a positive result. Like many before me, I have been all over the internet reading up on this, and I need a little help getting it sorted.
1. I have read that there are those who believe a better reference range for a positive result might be >3/3.5. Is this accurate and can you address the logic behind it (yea or nay)?
2. The way the test is presented, I'm unclear if it's HSV 1, HSV 2, or if it's potentially a combination of the two? Is it possible to have a collective result that presents positive when each alone would be negative (i.e. HSV 1 at .8, HSV 2 at .5 combining to present at 1.3)?
I'm obviously in denial, and hoping there's an alternative to a herpes diagnosis (I do intend to be retested at a later date; not currently active).
Your insight is appreciated. Thanks!
Combined tests are quite poor. The testing well is covered in antigens for both types and calibrated such that triggering just one half of the antigens results in a positive. Hence lots of false positives occur.
The 3.5 figure you read about applies only to the Herpeselect HSV2 IgG test.
In short an unhelpful test. To understand more you need type specific testing.