What is Infectious Mononucleosis Infectious Mononucleosis is a viral disease caused by the Epstein-Barr virus (EBV). The virus is spread through saliva (reason it is sometimes known as the kissing disease), and in rare instances through blood transfusion. Infectious Mononucleosis is mostly diagnosed in adolescents and young adults, mostly ...

Infectious mononucleosis (mono) is often called the kissing disease. The virus that causes mono is transmitted through saliva, so you can get it through kissing, but you can also be exposed through a cough or sneeze, or by sharing a glass or food utensil with someone who has ...