The First 2 Stages of Epstein-Barr Epstein-Barr virus goes through 4 stages. In the first stage, the virus goes through an initial format period of floating around in your bloodstream. At the end of Stage One, EBV challenges your immune system in a battle and turns into mononucleosis. Then there’s two more stages covered in the Medical Medium books. Understanding these stages helps explain how EBV causes symptoms and conditions over time. Comment ‘stages’ if you want to understand how Epstein-Ba