It is diagnosed with a BLOOD test. I have Chronic Active EBV and the other CMV (herpes blood virus) that goes along with it (score 189) and my score is 209 for EBV. it is affecting my kidneys, liver, immune system and the vagus nerve in my ear and I have constant ringing in my left ear. It is also affecting my thyroid, and Naturopaths do recognize it. EBV is part of the herpes complex family and it is dangerous past a certain point and is either the result of or part of AutoImmune Disease (mainly Hashimoto's Thyroiditis & Graves).I have HM's and can not take meds for it because of the CAEBV. My doctor is going to prescribe me some Low Dose Naltrexone to try and manage it.