Hey Manoj! Hopefully I can clear some things up for you and get you moving in the right direction.
The VCA IgG and VCA IgM blood tests that the doctored ordered does not check for an active Epstein Barr / EBV infection. These two blood tests are relatively easy and inexpensive ways to check for
immunoglobulins / antibodies that the body has created against the virus to defend itself.
Therefore, it can only be used as a way to test if you have had a recent or past infection. There is a handy chart below that shows you how to interpret IgG/IgM tests. I ran into this same thing when I started my ME/CFS diagnostic journey with my primary care doctor.
There is a test that can check for an active, ongoing EBV infection. It isn't ordered very often since EBV is often self-limiting, but it does exist. The LabCorp test is called
Epstein-Barr Virus (EBV), Quantitative, DNA PCR, Whole Blood (Code: 139490) -
here is a link to the test. This test will be more expensive and may not be covered by insurance, but it will give you the quantitative count of whole EBV DNA in the blood.
If your Quant PCR comes back with detectable amounts of EBV - then your doctor should be able to prescribe
Valacyclovir - which is an antiviral drug that can inhibit viral replication.
My IgM/IgG tests came back positive (showing I've had EBV before), but my Quant PCR test came back undetectable for active virus. This is why ME/CFS is such a tough disease from a research perspective - we aren't quite sure what is causing the disease yet. We know EBV can be a trigger, but it likely is not the root cause of the disease.