-THIS IS THE NIH, SO READ CAREFULLY (THEY ADMIT YOU CAN'T GO BY STRICT ANTIBODY TESTING TO ASSESS THE PRESENCE OF MULTIPLE INFECTIONS OR LIKE "LYME" IN SYNERGY WITH LIKE EBV/CYTOMEGALOVIRUS, ETC):
"We hypothesized that antibody profiles against multiple infectious agents might be altered in chronic disease, where the immune system is compromised, reflecting the interplay between infection by these agents, host immune responses and/or disease activity."