They might not show positive on a herpeselect, but some of them would show positive on a western blot, which looks for a different type of antibodies.
The herpeselect misses about 10% of hsv1 infections.
AJ
http://www.myracoon.net/pdfs/Time_to_Seroconversion.pdf
According to this graph, it's more like 4% that never seroconvert for HSV-2, and higher for HSV-1. That's with HerpesSelect. Of course the data doesn't go out for years, but most people don't test out that far anyway.
From that graph a Western Blot does fair a lot better.
AJ, do you know of a better study than this one? I'm interested if there's more recent/better data somewhere. I'd actually like to believe that the tests are more accurate than they appear.
Its less than 1%, I believe, that never seroconvert, but they would be positive on other herpes test, such as the western blot.
If all you had was an IgM, that shouldn't even be factored in the diagnosis. The IgM is terribly unreliable, and shouldn't be drawn on adults. If you search here for IgM and herpes, you'll find Dr. HHH's response on that.
AJ
One thing to remember too, is that some people with HSV-2 never seroconvert (become positive on IgG tests). It's a very small percentage, less than 5%, but it's not 0%.
AJ... She had an IGM test and thinks that she has herpes.
There is very little chance that a person would ever get a 0.00 on an IgG test result. The way the test works (and I am not a test techie, so my explanation is vague), is that even those who are negative will still get a real number, like .35, or .29 - but it is very rarely 0.00.
Also, someone who is physically capable of spreading herpes will test positive on a test.
Have you seen his results? I'd want to see copies. He doesn't need an IgM test - that's a totally unreliable test, and he would have had it long enough so that the IgM wouldn't matter. What were your results?
AJ
AJ
You should post this question in the herpes forum. I am very curious to know the answer.