You need more clarification on the test that was done. First of all, it's a multi test. There will be more than one result. If you show positive for past virus, that's okay, even if you've never had mono. My son is positive for past virus and has never had mono either. There are different ways that you can have the positive for past virus. If this is the only part of the testing that shows positive, then CAEBV is not a health problem for you. This does not mean that you have Reactive Mono or Chronic Active. The other parts of this blood test will show if you have chronic mono. You need to get a better answer from your doctor. Call the nurse and she/he can look up your test and most likely verify this for you.