i have taken two epstein barr and herpes tests. i am seeing one of the leading cfs docs out there, so i absolutely trust that he knows what these numbers mean, but i am not really sure so i was hoping someone could interpret whether or not they are high or low: on 1/30/09, EBV EA - 40 EBV EBNA - 160 EBV VCA - 320 HHV-6 - 80 on 3/13/09, EBV EA - 40 EBV EBNA - 160 EBV VCA - 640 HHV-6 - 160 I've noticed that the EBV VCA and the HHV-6 both have doubled. In looking on the internet, I found some publications that consider an EBV VCA of 640 to be high, but I am not sure if that would be the same reference range for my laboratory. My doc said that my numbers are low. I am confused why they seemed to have increased so much then. Both the EBV VCA and HHV-6 doubled. For those who have been diagnosed with chronic EBV and know more about this, would you consider me to possibly have chronic EBV or are these numbers truly quite low? I know my doctor treats his EBV patients with antivirals when they are in the thousands, which is obviously quite higher than mine. But would a "normal" (ie, not sick) person also have antibodies at 640? Thanks!!!