Mononucleosis, or “mono,” as it’s most commonly known, is a virus that is most frequent among teens and adolescents. What is it, and why is it common, though? Our AFC Urgent Care Athens, TN team shares some helpful info on this virus below, so keep reading! What Is Mono? Mono is an infectious illness caused by the Epstein-Barr virus, and it’s often referred to as the “kissing disease.” Mono is spread through saliva ...