Im not saying viruses like ebv are not the cause but generally these viruses dont reactivate in healthy people, so these viruses reactivating are a sign of something else lowering our immunity which then allows these viruses to reactivate. There are cfsers out there that dont seem to have problems with herpes viruses, but i do think treating them helps as its helped me and i think helps free up the immune system to go after other bugs floating around in us. Also dr martin's theories is that these viruses can change and go 'stealth' and our immune system has problems finding and fighting them. Hopefully montoya's study on 1001 bugs in cfs finds some answers. cheers!!!