What is the difference between epstein-barre and mononucleosis?

Same. Epstein barre is the virus that causes illness commonly known as mononucleosis.
Cause and effect. The epstein-barr virus is the cause of several potentially serious diseases, including infectious mononucleosis or "mono." however, the eb virus can also be more virulent and cause severe hypertrophic tonsillitis, enlargement of the spleen or liver. It usually is benign but in the canton province of china this virus is the leasing cause of cancer of the back of the nose.