I don't know them off by heart; I just copied them from a page on my website.
This still confuses me (IgG+ vs. IgM+ for enteroviruses).
I believe (but am not entirely sure) that in some antibody tests by the neutralization method (the method used by ARUP), these tests do not differentiate between IgM and IgG. So I believe your titers represent the sum total of your IgM and IgG antibodies combined together.
In chronic infections, though, you will not have IgM, just IgG; so when the ARUP tests are used in ME/CFS patients with chronic enterovirus infections, I think your results will just represent the IgG levels (unless you just happened to pick up a new acute enterovirus infection in the same week that you were tested, which will cause high IgM).